Sodium peroxide

H271: May cause fire or explosion; strong Oxidizer [Danger Oxidizing liquids; Oxidizing solids]

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

P210, P220, P260, P264, P280, P283, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P321, P363, P370+P378, P371+P380+P375, P405, P420, and P501 (click each P-code to see the statement)

H271 (100%): May cause fire or explosion; strong Oxidizer [Danger Oxidizing liquids; Oxidizing solids]

H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H318 (60.5%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

P210, P220, P260, P264, P264+P265, P280, P283, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P317, P321, P363, P370+P378, P371+P380+P375, P405, P420, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 172 reports by companies from 2 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.

H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

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

P210, P220, P260, P261, P264, P264+P265, P271, P280, P283, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P317, P319, P321, P363, P370+P378, P371+P380+P375, P403+P233, P405, P420, 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. Refer for medical attention .

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 .

Excerpt from ERG Guide 144 [Oxidizers (Water-Reactive)]:

Refer to the "General First Aid" section. Specific First Aid: Contaminated clothing may be a fire risk when dry. (ERG, 2024)

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 144 [Oxidizers (Water-Reactive)]:

DO NOT USE WATER OR FOAM.

SMALL FIRE: Dry chemical, soda ash or lime.

LARGE FIRE: DRY sand, dry chemical, soda ash or lime or withdraw from area and let fire burn. 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. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024)

NO water. Use dry powder. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.

If material on fire or involved in fire: use dry chemical, graphite, or dry earth. Use water only if flooding quantities are available. Apply water from as far a distance as possible.

Evacuation: If fire becomes uncontrollable - consider evacuation of one-half (1/2) mile radius.

In case of fire, water should be applied by the sprinkler system or by hose from a safe distance, preferably with a fog nozzle. Foam may be necessary instead if the peroxide is diluted in a low density flammable solvent. Portable extinguishers should not be used except for very small fires. Peroxides threatened by fire should be wetted from a safe distance for cooling. /Peroxides, Organic and Inorganic/

· 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.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.

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

· Stop leak if you can do it without risk.

· Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.

· DO NOT GET WATER on spilled substance or inside containers.

Small Spill

· Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain.

Large Spill

· DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST.

Excerpt from ERG Guide 144 [Oxidizers (Water-Reactive)]:

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.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

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.

· For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.

· For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind direction, as necessary.

· 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: complete protective clothing including self-contained breathing apparatus. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Then store and dispose of according to local regulations.

Dilute and drain into the sewer with abundant water. /Hydrogen peroxide/

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

WEAR SKIN...PROTECTION WHEN HANDLING MULTIGRAM AMT.

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, and fumes from burning material. Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water. If contact with the material anticipated, wear appropriate chemical protective clothing. Approach fire with caution.

Excerpt from ERG Guide 144 [Oxidizers (Water-Reactive)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. DO NOT GET WATER on spilled substance or inside containers.

SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain.

LARGE SPILL: DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. (ERG, 2024)

Store in an area without drain or sewer access. Separated from combustible substances, reducing agents, acids and powdered metals. Dry.

KEEP TIGHTLY CLOSED & PROTECTED FROM CONTACT WITH ORGANIC OR OXIDIZABLE SUBSTANCES.

...SHOULD...BE STORED IN FIRE-RESISTING BUILDINGS, & SEPARATED FROM FLAMMABLE MATERIALS.

PROTECT AGAINST PHYSICAL DAMAGE & MOISTURE. SEPARATE FROM COMBUSTIBLE, ORGANIC OR OTHER READILY OXIDIZABLE MATERIALS. DO NOT STORE IN AREAS SUBJECT TO MOISTURE. IMMEDIATELY REMOVE & DISPOSE OF ANY SPILLED PEROXIDE.

· 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.

0.50 [mg/m3]

5.0 [mg/m3]

50 [mg/m3]

· DO NOT USE WATER OR FOAM.

Small Fire

· Dry chemical, soda ash or lime.

Large Fire

· DRY sand, dry chemical, soda ash or lime or withdraw from area and let fire burn.

· 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.

· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.

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

A harmful concentration of airborne particles can be reached quickly when dispersed.

The substance is very corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema.

Excerpt from ERG Guide 144 [Oxidizers (Water-Reactive)]:

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. (ERG, 2024)

OPERATORS SHOULD WEAR PERSONAL PROTECTIVE EQUIPMENT INCLUDING GOGGLES & SUITABLE RESPIRATORY PROTECTIVE EQUIPMENT.

Persons handling peroxides should use safety glasses with side shields, goggles or face shield for eye protection. Emergency eyewash facilities should be provided. Gloves, aprons and other protective clothing as necessary should be used to prevent skin contact. Clothing and equipment that generate static electricity should be avoided. Smoking should be prohibited. /Peroxides, Organic and Inorganic/

NO contact with water, combustible substances or reducing agents.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use local exhaust or breathing protection.

Protective gloves. Protective clothing.

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

Do not eat, drink, or smoke during work.

Sodium peroxide appears as a yellow-white to yellow granular solid. Mixtures with combustible material are readily ignited by friction, heat, or contact with moisture. May vigorously decompose under prolonged exposure to heat, causing the rupture of the containers.

White to pale-yellow granules; [CHEMINFO MSDS]

YELLOW-TO-WHITE POWDER.

Yellowish-white, granular powder

WHITE POWDER TURNING YELLOW ON EXPOSURE TO ATMOSPHERE

Yellowish-white powder turns yellow when heated

Pale yellow solid

657 °C, decomp

460 °C, decomp

SOLUBLE IN ACID; INSOLUBLE IN ALKALI

Freely sol in water, forming sodium hydroxide and hydrogen peroxide, the latter quickly decomp into oxygen and water

Solubility in water: reaction

2.805 @ 20 °C

2.8 g/cm³

2.805 @25 °C

ABSORBS WATER & CARBON DIOXIDE FROM AIR.

Reacts with water

Active oxygen content approx 20% by weight; evolves heat when dissolved in cold water

Strong oxidizing agent

With dilute acids hydrogen peroxide is formed which remains stable

For more Other Experimental Properties (Complete) data for SODIUM PEROXIDE (7 total), please visit the HSDB record page.

Metals -> Peroxides, Metal

Reactive agents - 1st degree

Reacts vigorously with water, large amounts react explosively [Haz. Chem. Data 1969. p. 201].

Bases, Strong

Oxidizing Agents, Strong

Explosive

Strong Oxidizing Agent

Water-Reactive

SODIUM PEROXIDE reacts violently with reducing agents, combustible materials and light metals. Reacts exothermically and rapidly or even explosively with water to form a strong base (NaOH) and oxygen (O2) [Handling Chemicals Safely 1980 p. 854]. A mixture with ammonium persulfate can explode if subjected to friction (crushing in a mortar), if heated, or if a stream of gaseous carbon dioxide is passed over it [Mellor 10:464 1946-47]. Reacts very vigorously with gaseous hydrogen sulfide; even in the absence of air, the reaction may be accompanied by flame [Mellor 10:132 1946-47]. An explosion results when gaseous carbon dioxide is passed over a mixture of sodium peroxide with powdered magnesium [Mellor 2:490 1946-47]. Mixtures with acetic acid or acetic anhydride can explode if not kept cold [Von Schwartz 1918 p. 321]. Spontaneously flammable in contact with aniline, benzene, diethyl ether, or organic materials such as paper and wood. Mixtures with charcoal, glycerine, certain oils, and phosphorus burn or explode [Mellor 2:490 1946-47]. A mixture with calcium carbide (powdered) burst into flame when exposed to damp air and exploded when heated [Mellor 2:490 1946-47]. Decomposes, often violently in the presence of catalytic quantities of manganese dioxide [Mellor 2 Supp. 2:635 1961]. Mixing with sulfur monochloride leads to a violent reaction [Mellor 2 Supp. 2:634 1961]. Can react with and cause the ignition of fuels.

REACTS VIOLENTLY WITH WATER, ORG MATTER, CHARCOAL, GLYCEROL, DIETHYL ETHER, OR PHOSPHORUS.

VIGOROUS EXOTHERMIC REACTION TAKES PLACE WITH WATER TO FORM SODIUM HYDROXIDE & OXYGEN.

The catalyzed decomposition of sodium peroxide with manganese dioxide may be violent.

Sodium peroxide oxidizes copper with incandescence.

For more Hazardous Reactivities and Incompatibilities (Complete) data for SODIUM PEROXIDE (8 total), please visit the HSDB record page.

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

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

Redness. Serious skin burns. Pain.

Redness. Pain. Blurred vision. Severe deep burns.

Sore throat. Abdominal pain. Nausea. Shock or collapse. Burning sensation.

Dermatotoxin - Skin burns.

Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.

Basic treatment: Establish a patent airway. 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 pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline 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 ... . /Oxidizers/

Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in, respiratory arrest. Early intubation, at the first sign of upper airway obstruction, may be necessary. Positive pressure ventilation techniques with a bag valve mask device may be beneficial. Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start an IV with D5W /SRP: "To keep open", minimal flow rate/. Use lactated Ringer's if signs of hypovolemia are present. Watch for signs of fluid overload. Consider drug therapy for pulmonary edema ... . For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Oxidizers/

Peroxides should be washed promptly from the skin to prevent irritation. In the case of eye contact, the eyes should be flushed immediately with large amounts of water, and medical attention should be obtained. ... Medical attention should also be obtained in case of accidental ingestion. ... /Peroxides, Organic and Inorganic/

...MAY CAUSE CHEMICAL BURNS OF SKIN & MUCOUS MEMBRANES, ALTHOUGH BURNS CAUSED BY HYDROGEN PEROXIDE ARE LESS SERIOUS THAN THOSE CAUSED BY SODIUM PEROXIDE.

NO PRIMARY SYSTEMIC EFFECTS WHEN INGESTED BECAUSE IT IS DECOMPOSED IN /SRP: GI TRACT/ BEFORE ABSORPTION. DECOMPOSITION MAY RELEASE LARGE VOL OF OXYGEN... LARGE DOSES PRESUMABLY PRODUCE GASTRITIS & ESOPHAGITIS.

IRRITANT AND CORROSIVE

Acute exposures to sodium peroxide via inhalation may cause respiratory irritation and difficulty in breathing.

For more Human Toxicity Excerpts (Complete) data for SODIUM PEROXIDE (6 total), please visit the HSDB record page.

/AN AEROSOL/...OF NA2O2 WITH SOME NAO.../WAS USED/ TO REPRESENT PRODUCT OF AN ACCIDENTAL SODIUM METAL FIRE IN A NUCLEAR REACTOR. JUVENILE & ADULT RATS EXPOSED...2 HR TO VARIOUS DILUTIONS OF AEROSOL.../SHOWED NECROSIS OF LARYNX SURFACE/. FINAL PARTICLE SIZE...2.5 UM OR LESS...PREDOMINATELY SODIUM CARBONATE WITH SOME NAOH.

DUE TO INDUSTRIAL DEVELOPMENT OF SODIUM COOLED BREEDER REACTORS, THE CONSEQUENCES OF SODIUM PEROXIDE AEROSOLS ON LETTUCE & TOMATOES WERE STUDIED. NECROSIS WAS REPORTED WHEN DEPOSITS IN SODIUM EQUIV WERE APPROX 300 MG/CU M. LEAVES WERE DESTROYED IF NECROSIS WAS EXTENSIVE.

Individuals with eye, skin, and chronic respiratory diseases /may be/ at an increased risk. /Hydrogen peroxide/

The substance is harmful to aquatic organisms.

IT MAY...BE ENCOUNTERED IN THE AEROSOL FROM SODIUM FIRES.

The substance is harmful to aquatic organisms.

IT MAY...BE ENCOUNTERED IN THE AEROSOL FROM SODIUM FIRES.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

/GUIDE 144: OXIDIZERS (Water-Reactive)/ Fire or Explosion: May ignite combustibles (wood, paper, oil, clothing, etc.). React vigorously and/or explosively with water. Produce toxic and/or corrosive substances on contact with water. Flammable/toxic gases may accumulate in tanks and hopper cars. Some may produce flammable hydrogen gas upon contact with metals. Containers may explode when heated. Runoff may create fire or explosion hazard.

/GUIDE 144: OXIDIZERS (Water-Reactive)/ Health: TOXIC; inhalation or contact with vapor, substance, or decomposition products may cause severe injury or death. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution.

/GUIDE 144: OXIDIZERS (Water-Reactive)/ 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 144: OXIDIZERS (Water-Reactive)/ 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 provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.

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

UN 1504; Sodium peroxide

IMO 5.1; Sodium 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

Symbol: O, C; R: 8-35; S: (1/2)-8-27-39-45

UN Hazard Class: 5.1; UN Pack Group: I