Barium peroxide

H272: May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]

H302: Harmful if swallowed [Warning Acute toxicity, oral]

H332: Harmful if inhaled [Warning Acute toxicity, inhalation]

P210, P220, P261, P264, P270, P271, P280, P301+P317, P304+P340, P317, P330, P370+P378, and P501 (click each P-code to see the statement)

H272 (100%): May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]

H302+H332 (43.9%): Harmful if swallowed or if inhaled [Warning Acute toxicity, oral; acute toxicity, inhalation]

H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]

H314 (45.6%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H318 (45.6%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

H332 (100%): Harmful if inhaled [Warning Acute toxicity, inhalation]

P210, P220, P260, P261, P264, P264+P265, P270, P271, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P363, P370+P378, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 239 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H315: Causes skin irritation [Warning Skin corrosion/irritation]

H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]

H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

P210, P220, P260, P261, P264, P264+P265, P270, P271, P280, P302+P352, P304+P340, P305+P351+P338, P308+P316, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P405, and P501 (click each P-code to see the statement)

H316: Causes mild skin irritation [Warning Skin corrosion/irritation]

H320: Causes eye irritation [Warning Serious eye damage/eye irritation]

H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]

P210, P220, P260, P261, P264, P264+P265, P270, P271, P280, P304+P340, P305+P351+P338, P308+P316, P319, P332+P317, P337+P317, P370+P378, P403+P233, P405, and P501 (click each P-code to see the statement)

Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.

First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Do NOT induce vomiting. Refer for medical attention .

Get medical attention. Alert doctor to possibility of barium poisoning, particularly if compound was swallowed.

INHALATION: remove to fresh air.

EYES: flush with water for 15 min.

SKIN: flush with water.

INGESTION: oral administration of an aqueous 10% solution of magnesium or sodium sulfate; in a severe intoxication, calcium or a magnesium salt may have to be given I.V. with caution; treatment otherwise is supportive and symptomatic. (USCG, 1999)

General First Aid:

· Call 911 or emergency medical service.

· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.

· Move victim to fresh air if it can be done safely.

· Administer oxygen if breathing is difficult.

· If victim is not breathing:

-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.

-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).

-- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.

· Remove and isolate contaminated clothing and shoes.

· For minor skin contact, avoid spreading material on unaffected skin.

· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.

· For severe burns, immediate medical attention is required.

· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.

· Keep victim calm and warm.

· Keep victim under observation.

· For further assistance, contact your local Poison Control Center.

· Note: Basic Life Support (BLS) and Advanced Life Support (ALS) should be done by trained professionals.

Specific First Aid:

· Contaminated clothing may be a fire risk when dry.

In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping paper and/or the "ERAP" section.

Excerpt from ERG Guide 141 [Oxidizers - Toxic]:

SMALL FIRE: Use water. Do not use dry chemicals or foams. CO2 or Halon® may provide limited control.

LARGE FIRE: Flood fire area with water from a distance. Do not move cargo or vehicle if cargo has been exposed to heat. If it can be done safely, move undamaged containers away from the area around the fire.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2024)

In case of fire in the surroundings, use appropriate extinguishing media.

Fire Extinguishing Media: Use flooding amounts of water. Do not use dry chemical, carbon dioxide or Halon. Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode. Do not release runoff from fire control methods to sewers or waterways. Water spray may be used to keep fire exposed containers cool.

Barium peroxide does not burn, but mixtures of barium peroxide and combustible, organic, or easily oxidized materials, such as wood, fuels, paper, and charcoal, will burn or explode if rubbed or contact a small amound of water. Use large amounts of water to extinguish the fire ... If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Notify local health and fire officials and pollution control agencies. From a secure, explosion-proof location, use water spray to cool exposed containers. If cooling streams are ineffective (venting sound increases in volume and pitch, tank discolors or shows any signs of deforming), withdraw immediately to a secure position ... The only respirators recommended for fire fighting are self-contained breathing apparatuses that have full facepieces and are operated in a pressure-demand or other positive-pressure mode.

If material on fire or involved in fire: Flood with water. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible ... If fire becomes uncontrollable, consider evacuation of one-half (1/2) mile radius.

It is non-combustible, but it will accelerate the burning of combustible materials. If the combustible material is finely divided the mixture may be explosive.

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.

· Keep unauthorized personnel away.

· Stay upwind, uphill and/or upstream.

· Ventilate closed spaces before entering, but only if properly trained and equipped.

· Keep combustibles (wood, paper, oil, etc.) away from spilled material.

· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.

· Stop leak if you can do it without risk.

Small Dry Spill

· With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area.

Large Spill

· Dike far ahead of spill for later disposal.

Excerpt from ERG Guide 141 [Oxidizers - Toxic]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

LARGE SPILL: Consider initial downwind evacuation for at least 100 meters (330 feet).

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Immediate precautionary measure

· Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

· Consider initial downwind evacuation for at least 100 meters (330 feet).

· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents.

Accidental Release Measures. Ventilate area of leak or spill. Keep unnecessary and unprotected people away from area of spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Pick up and place in a suitable container for reclamation or disposal, using a method that does not generate dust.

Spill Handling: Evacuate and restrict persons not wearing protective equipment from area of spill or leak until cleanup is complete. Remove all ignition sources. Cover material with sand/soda ash 9:1 mixture. Mix thoroughly and while stirring, add slowly to sodium bisulfite solution with plastic implements. Neutralize with dilute /sulfuric acid/. After setting, decant the solution with flushing water and transport the sand to a sanitary landfill. Ventilate area of spill or leak after cleanup is complete. It may be necessary to contain and dispose of this chemical as a hazardous waste. If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Contact your Department of Environmental Protection or your regional office of the federal EPA for specific recommendations.

Sweep spilled substance into containers, then remove to safe place. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT let this chemical enter the environment.

The sulfate may be brushed up and treated as normal refuse. Soluble barium salts should be scooped up and treated as for waste disposal. Wash the spill area thoroughly with water. /Soluble barium salts/

For more Cleanup Methods (Complete) data for Barium peroxide (9 total), please visit the HSDB record page.

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number D005, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste.

Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste facility. Although not a listed RCRA hazardous waste, this material may exhibit one or more characteristics of a hazardous waste and require appropriate analysis to determine specific disposal requirements. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.

... Ion exchange, lime softening and reverse osmosis are effective to remove barium from drinking water. Conventional coagulation/filtration processes are not effective to remove barium from drinking water. /Barium ion/

Package lots. Place in a separate labeled container for recycling or disposal. Small quantities. Wear nitrile rubber gloves, laboratory coat, and eye protection. Avoid breathing dust. Dissolve the barium salt in the minimum volume of water. For each gram of barium salt, add 15 mL of 10% sodium sulfate solution. Let stand for 1 week. Test for completeness of precipitation by adding a few drops of 10% sodium sulfate solution. If required, add more sodium sulfate solution until no further precipitation occurs. Decant supernatant liquid or filter solid. Treat solid as normal refuse. Wash liquid into drain. /Barium salt/

Where possible, enclose operations and use local exhaust ventilation at the site of chemical release. If local exhaust ventilation or enclosure is not used, respirators should be worn. Wear protective gloves and clothing to prevent any reasonable probability of skin contact ... Wear dust-proof chemical goggles and face shield unless full facepiece respiratory protection is worn.

If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers.

Personnel protection: Avoid breathing dusts ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amount of water or soap and water.

SRP: Wastewater from contaminant suppression, cleaning of protective clothing/equipment, or contaminated sites should be contained and evaluated for subject chemical or decomposition product concentrations. Concentrations shall be lower than applicable environmental discharge or disposal criteria. Alternatively, pretreatment and/or discharge to a permitted wastewater treatment facility is acceptable only after review by the governing authority and assurance that "pass through" violations will not occur. Due consideration shall be given to remediation worker exposure (inhalation, dermal and ingestion) as well as fate during treatment, transfer and disposal. If it is not practicable to manage the chemical in this fashion, it must be evaluated in accordance with EPA 40 CFR Part 261, specifically Subpart B, in order to determine the appropriate local, state and federal requirements for disposal.

For more Preventive Measures (Complete) data for Barium peroxide (11 total), please visit the HSDB record page.

Excerpt from ERG Guide 141 [Oxidizers - Toxic]:

Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk.

SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area.

LARGE SPILL: Dike far ahead of spill for later disposal. (ERG, 2024)

Separated from combustible substances, reducing agents and food and feedstuffs. Dry.

Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage and moisture. Separate from incompatibilities. Separate from combustibles, organic or other readily oxidizable materials. Avoid storage on wood floors. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.

Separated from combustible and reducing substances, food and feedstuffs. Dry.

Storage temp: Ambient

· Wear positive pressure self-contained breathing apparatus (SCBA).

· Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE.

· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.

1.8 [mg/m3]

51 [mg/m3]

310 [mg/m3]

0.5 mg/m

(as Ba): 0.5 mg/m

Intermediate Oral: 0.2 mg/kg/day (L134)

Chronic Oral: 0.2 mg/kg/day (L134)

Small Fire

· Use water. Do not use dry chemicals or foams. CO2 or Halon® may provide limited control.

Large Fire

· Flood fire area with water from a distance.

· Do not move cargo or vehicle if cargo has been exposed to heat.

· If it can be done safely, move undamaged containers away from the area around the fire.

Fire Involving Tanks, Rail Tank Cars or Highway Tanks

· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.

· Cool containers with flooding quantities of water until well after fire is out.

· ALWAYS stay away from tanks in direct contact with flames.

· For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn.

Barium byproduct materials under NRC export/import licensing authority: Barium-131, Barium-133, Barium-140: Any accelerator-produced, extracted, or converted for use for a commercial, medical, or research activity.

Table: Quantities of Licensed Material Requiring Labeling [Table#1195]

For combinations of radioactive materials, consideration of the need for an emergency plan is required if the sum of the ratios of the quantity of each radioactive material authorized to the quantity listed for that material in Schedule C exceeds one.

Table: Quantities of Radioactive Materials Requiring Emergency Plan for Responding to a Release. [Table#1196]

Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the nervous system. Exposure could cause hypokalaemia. This may result in cardiac disorders and muscular disorders.

U.S.B.M. -approved toxic dust respirator; liquid-proof PVC gloves; chemical safety goggles; full cover clothing. (USCG, 1999)

A system of local and/or general exhaust is recommended to keep employee exposures below the Airborne Exposure Limits. Local exhaust ventilation is generally preferred because it can control the emissions of the contaminant at its source, preventing dispersion of it into the general work area. Please refer to the ACGIH document, Industrial Ventilation, A Manual of Recommended Practices, most recent edition, for details.

Skin Protection: Wear impervious protective clothing, including boots, gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact. Eye Protection: Use chemical safety goggles. Maintain eye wash fountain and quick-drench facilities in work area.

Wear appropriate chemical protective gloves, boots, and goggles.

/NIOSH approved/ respirator; liquid-proof poly vinyl chloride gloves; chemical safety goggles; full cover clothing.

For more Personal Protective Equipment (PPE) (Complete) data for Barium peroxide (12 total), please visit the HSDB record page.

NO contact with combustible substances, reducing agents or acids.

PREVENT DISPERSION OF DUST! STRICT HYGIENE!

Use local exhaust or breathing protection.

Protective gloves. Protective clothing.

Wear safety goggles, face shield or eye protection in combination with breathing protection if powder.

Do not eat, drink, or smoke during work.

Barium peroxide appears as a grayish-white granular solid. Insoluble in water. Noncombustible, but accelerates the burning of combustible material. Mixture with finely divided combustible material may be explosive. Mixtures with combustible material may be ignited by friction or contact with moisture.

Insoluble in water; [HSDB] White or grayish-white solid; [Merck Index] Grey or white odorless powder; [MSDSonline]

WHITE OR GREY-TO-WHITE POWDER.

White or grayish-white, heavy powder

Odorless

800 °C (decomposes)

842 °F (USCG, 1999)

0.091 g/100 g water at 20 °C

Solubility in water: poor

4.96 at 68 °F (USCG, 1999) - Denser than water; will sink

4.96 g/cu cm

Relative density (water = 1): 5.0

4.96 @25 °C

Decomposes slowly in air.

The substance decomposes on heating and on contact with water or acids producing oxygen and hydrogen peroxide, which increases fire hazard.

Corrodes metal slowly

Oxidizing material

Upon heating to 700 °C, barium peroxide decomposes to barium oxide and oxygen.

Heat of Decomposition: -194 Btu/lb = -108 cal/g = -4.52X10+5 J/kg

Mol wt: 313.45; colorless hexagonal crystals; density or specific gravity: 2.292; MP: lose 8 H2O at 100 °C; solubility: 0.168 g/100 cc of water; sol in dilute acid; insol in alcohol, ether, acetone /Octahydrate/

Combines with water to form octahydrate; decomposes slowly in air; decomposed by dilute acid or carbon dioxide in the presence of water.

1.5 parts by wt of the formula wt/100 parts by wt of water at 0 °C /Octahydrate/

Metals -> Peroxides, Metal

FCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR

Decomposed by water. Insoluble in water.

Salts, Basic

Oxidizing Agents, Strong

Strong Oxidizing Agent

BARIUM PEROXIDE is a strong oxidizing agent. Contact with water can produce a temperature and oxygen concentration high enough to ignite organic materials [Bretherick's, 5th ed., 1995, p. 94]. Reacts explosively with acetic anhydride due to the formation of acetyl peroxide [Rust, 1948, p. 337]. Ignites when mixed with powdered aluminum, powdered magnesium or calcium-silicon alloys. Wood may ignite with friction from the peroxide. Decomposes when heated to 700 °C to produce barium oxide and pure oxygen [Sax, 9th ed., 1996, p. 317]. Forms highly reactive mixtures with fuel-type materials.

The substance is a strong oxidant and reacts violently with combustible and reducing materials.

Mixtures with propane react violently when heated ... Incompatible with hydrogen sulfide, water, peroxyformic acid, hydroxylamine solution, mixture of Magnesium, Zinc and Barium Nitrate, and organic matter.

The peroxide was substituted for (unavailable) potassium permanganate in a process for purifying crude anhydride in an open vessel. After several operations, when only minor explosions occurred, a violent explosion & fire occurred. Acetyl peroxide /can/ be produced.

Heating barium peroxide under gaseous propane at ambient pressure caused a violent exothermic reaction.

For more Hazardous Reactivities and Incompatibilities (Complete) data for Barium peroxide (11 total), please visit the HSDB record page.

Barium is a competitive potassium channel antagonist that blocks the passive efflux of intracellular potassium, resulting in a shift of potassium from extracellular to intracellular compartments. The intracellular translocation of potassium results in a decreased resting membrane potential, making the muscle fibers electrically unexcitable and causing paralysis. Some of these barium's effects may also be due to barium induced neuromuscular blockade and membrane depolarization. (L214)

A4; Not classifiable as a human carcinogen. /Barium and soluble compounds, as Ba/

No indication of carcinogenicity to humans (not listed by IARC).

The health effects of the different barium compounds depend on how well the compound dissolves in water or the stomach contents. At low doses, barium acts as a muscle stimulant, while higher doses affect the nervous system, causing cardiac irregularities, tremors, weakness, anxiety, dyspnea, paralysisand possibly death. Barium may also cause gastrointestinal disturbances, damage the kidneys and cause decreases in body weight. (L214)

The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Oral (L214) ; inhalation (L214)

Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. See Ingestion.

Redness. Skin burns. Pain.

Redness. Pain. Blurred vision.

Abdominal pain. Vomiting. Diarrhoea.

Ingesting excess barium may cause vomiting, abdominal cramps, diarrhea, difficulties in breathing, increased or decreased blood pressure, numbness around the face, and muscle weakness. High levels may result in changes in heart rhythm or paralysis and possibly death. (L214)

LD50: 50 mg/kg (Oral, Mouse) (T14)

LD50 Mouse sc 50 mg/kg

Intravenous infusion of potassium often relieves many of the symptoms of barium toxicity. (L214)

Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Barium and Related Compounds/

Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Do not attempt to neutralize because of exothermic reaction. Cover skin burns with dry sterile dressings after decontamination ... . /Barium and Related Compounds/

Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious or is in severe respiratory distress. Monitor cardiac rhythm and treat arrhythmias if necessary ... . Start IV administration of 0.9% saline (NS) or lactated Ringer's (LR) /SRP: "To keep open", minimal flow rate/. For hypotension with signs of hypovolemia, administer fluid cautiously Watch for signs of fluid overload. For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam or lorazepam ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Barium and Related Compounds/

/SIGNS AND SYMPTOMS/ The agent irritates and corrodes the skin, the mucous membranes and the eyes. Very toxic if ingested.

/SIGNS AND SYMPTOMS/ Inhalation: May cause irritation to the nose, throat, and respiratory tract. Symptoms may include sore throat, coughing, and shortness of breath. Systemic poisoning may occur in sensitive individuals with symptoms similar to those of ingestion. Heavy exposure to dusts may produce a benign pneumoconiosis (baritosis). Systemic poisoning may occur with symptoms similar to those of ingestion. Heavy exposure to dusts can produce benign pneumoconiosis (baritosis). Ingestion: May cause tightness of the muscles of the face and neck, vomiting, diarrhea, abdominal pain, muscular tremors, anxiety, weakness, labored breathing, cardiac irregularity, convulsions, and death from cardiac and respiratory failure. Estimated lethal dose lies between 1 to 15 grams. Skin Contact: Causes irritation to skin. Symptoms include redness, itching, and pain. Eye Contact: Causes irritation, redness, and pain.

/SIGNS AND SYMPTOMS/ Short Term Exposure: Barium peroxide can affect you when breathed in. Contact can irritate and burn the eyes and skin. Breathing the dust or mist can irritate the nose, throat, and bronchial tubes, causing cough and phlegm. Exposure to this chemical can affect the nervous system and cause hypokalemia, which can cause heart disorders. Long Term Exposure: After repeated exposure barium may show up as spots in the lungs on chest X-ray. Some barium chemicals are contaminated with silica, which scars the lungs. Repeated contact may cause chronic drying and cracking skin. Animal studies have found increased blood pressure and changes in the heart from ingesting barium over a long time.

/SIGNS AND SYMPTOMS/ Severe reactions have ... been reported from inhalation of barium ... peroxide dusts...

/LABORATORY ANIMALS: Acute Exposure/ The lowest toxic dosage for subcutaneous injection is 100 mg/kg in mice.

Persons with pre-existing skin and nervous system disorders or impaired respiratory or cardiac function may be more susceptible to the effects of this substance.

The substance is harmful to aquatic organisms.

Harmful ... if swallowed.

NIOSH (NOES Survey 1981-1983) has statistically estimated that 511 workers (312 of these were female) were potentially exposed to barium peroxide in the US(1).

The substance is harmful to aquatic organisms.

Harmful ... if swallowed.

NIOSH (NOES Survey 1981-1983) has statistically estimated that 511 workers (312 of these were female) were potentially exposed to barium peroxide in the US(1).

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number D005, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste.

Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste facility. Although not a listed RCRA hazardous waste, this material may exhibit one or more characteristics of a hazardous waste and require appropriate analysis to determine specific disposal requirements. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.

... Ion exchange, lime softening and reverse osmosis are effective to remove barium from drinking water. Conventional coagulation/filtration processes are not effective to remove barium from drinking water. /Barium ion/

Package lots. Place in a separate labeled container for recycling or disposal. Small quantities. Wear nitrile rubber gloves, laboratory coat, and eye protection. Avoid breathing dust. Dissolve the barium salt in the minimum volume of water. For each gram of barium salt, add 15 mL of 10% sodium sulfate solution. Let stand for 1 week. Test for completeness of precipitation by adding a few drops of 10% sodium sulfate solution. If required, add more sodium sulfate solution until no further precipitation occurs. Decant supernatant liquid or filter solid. Treat solid as normal refuse. Wash liquid into drain. /Barium salt/

/GUIDE 141: OXIDIZERS - TOXIC/ Fire or Explosion: These substances will accelerate burning when involved in a fire. May explode from heat or contamination. Some may burn rapidly. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.

/GUIDE 141: OXIDIZERS - TOXIC/ Health: Toxic by ingestion. Inhalation of dust is toxic. Fire may produce irritating, corrosive and/or toxic gases. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control or dilution water may cause pollution.

/GUIDE 141: OXIDIZERS - TOXIC/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate closed spaces before entering.

/GUIDE 141: OXIDIZERS - TOXIC/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection.

For more DOT Emergency Guidelines (Complete) data for Barium peroxide (8 total), please visit the HSDB record page.

UN 1449; Barium peroxide

IMO 5.1; Barium peroxide

49 187 12; Barium peroxide

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./

The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.

The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

Oxidizer Poison

Do not transport with food and feedstuffs.

Symbol: O, Xn; R: 8-20/22; S: (2)-13-27

UN Hazard Class: 5.1; UN Subsidiary Risks: 6.1; UN Pack Group: II