Perchloric Acid

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]

H290 (11.2%): May be corrosive to metals [Warning Corrosive to Metals]

H302 (18.9%): Harmful if swallowed [Warning Acute toxicity, oral]

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

P210, P220, P234, P260, P264, P270, P280, P283, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P321, P330, P363, P370+P378, P371+P380+P375, P390, P405, P406, P420, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 196 reports by companies from 19 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.

H290: May be corrosive to metals [Warning Corrosive to Metals]

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

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]

H351: Suspected of causing cancer [Warning Carcinogenicity]

H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]

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

P203, P210, P220, P234, P260, P261, P264, P264+P265, P270, P271, P280, P283, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P317, P318, P319, P321, P330, P363, P370+P378, P371+P380+P375, P390, P403+P233, P405, P406, P420, and P501 (click each P-code to see the statement)

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

P210, P220, P234, P260, P264, P264+P265, P270, P280, P283, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P308+P316, P316, P317, P321, P330, P363, P370+P378, P371+P380+P375, P390, P405, P406, P420, and P501 (click each P-code to see the statement)

P210, P220, P260, P264, P270, P280, P283, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P321, P330, P363, P370+P378, P371+P380+P375, 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.

Remove contaminated clothes. Rinse skin with plenty of water or shower. 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 .

Get medical attention following all exposures to this compound.

INHALATION: move to fresh air; give oxygen if necessary.

INGESTION: give large amounts of water.

EYES: flush with water for at least 15 min.

SKIN: flush with water. (USCG, 1999)

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

Refer to the "General First Aid" section. Specific First Aid: For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required. In case of skin contact with Hydrofluoric acid (UN1790), if calcium gluconate gel is available, rinse 5 minutes, then apply gel. Otherwise, continue rinsing until medical treatment is available. (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.

· For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required.

· In case of skin contact with Hydrofluoric acid (UN1790), if calcium gluconate gel is available, rinse 5 minutes, then apply gel. Otherwise, continue rinsing until medical treatment is available.

Excerpt from ERG Guide 143 [Oxidizers (Unstable)]:

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. Do not get water inside containers: a violent reaction may occur.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Cool containers with flooding quantities of water until well after fire is out. Dike runoff from fire control for later disposal. 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)

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

Note: Some foams will react with the material and release corrosive/toxic gases.

SMALL FIRE: CO2 (except for Cyanides), dry chemical, dry sand, alcohol-resistant foam.

LARGE FIRE: Water spray, fog or alcohol-resistant foam. If it can be done safely, move undamaged containers away from the area around the fire. Avoid aiming straight or solid streams directly onto the product. Dike runoff from fire control for later disposal.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers. 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)

In case of fire in the surroundings: water in large amounts, water spray. In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.

COMBAT FIRES FROM SAFE DISTANCE OR PROTECTED LOCATION. FLOOD DISCHARGE AREA WITH WATER. COOL EXPOSED CONTAINERS WITH WATER. /AQUEOUS SOLN/

USE WATER SPRAY.

ASSUME THAT ORGANIC MATERIALS ARE INVOLVED & THAT AN EXPLOSION MAY OCCUR. USE CAUTION IN APPROACHING THE FIRE.

· 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.

· Use water spray to reduce vapors or divert vapor cloud drift.

· Prevent entry into waterways, sewers, basements or confined areas.

Small Spill

· Flush area with large amounts of water.

Large Spill

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

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

· All equipment used when handling the product must be grounded.

· Stop leak if you can do it without risk.

· A vapor-suppressing foam may be used to reduce vapors.

· DO NOT GET WATER INSIDE CONTAINERS.

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

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

· Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal.

Excerpt from ERG Guide 143 [Oxidizers (Unstable)]:

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)

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

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.

Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT absorb in saw-dust or other combustible absorbents. Absorb liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Cautiously neutralize remainder. Do NOT wash away into sewer.

NEUTRALIZING AGENTS FOR ACIDS & CAUSTICS: FLUSH WITH WATER & RINSE WITH DILUTE SODIUM BICARBONATE OR SODA ASH SOLUTION.

REMOVE SPILLED PERCHLORIC ACID BY IMMEDIATE & THOROUGH WASHING WITH LARGE AMT OF WATER.

RADIOACTIVE WASTEWATER CONTAINING PERCHLORIC ACID IS TREATED BY SN, TI3+ OR MOO3, & AQ HCL. AFTER 2 HR 92.3% OF PERCHLORIC ACID WAS REDUCED.

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.

Neutralization, landfill, & discharge to sewer: Reduce perchloric acid with weak reducing agent (hypobisulfite or ferrous salt, plus sulfuric acid as accelerator have been recommended), neutralize with sodium carbonate or calcium oxide. The reduced neutralized slurry may be flushed to the drain with high dilution; otherwise deposit in an approved landfill.

AVOID USE OF ORGANIC CHEMICALS IN HOODS OR OTHER FUME REMOVAL DEVICES USED FOR PERCHLORIC ACID DIGESTIONS. ...IN WET COMBUSTIONS WITH PERCHLORIC ACID, TREAT SAMPLE FIRST WITH NITRIC ACID TO DESTROY EASILY OXIDIZABLE ORG MATTER UNLESS OTHERWISE SPECIFIED. DO NOT EVAPORATE TO DRYNESS.

Excerpt from ERG Guide 143 [Oxidizers (Unstable)]:

Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Use water spray to reduce vapors or divert vapor cloud drift. Prevent entry into waterways, sewers, basements or confined areas.

SMALL SPILL: Flush area with large amounts of water.

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

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. A vapor-suppressing foam may be used to reduce vapors. DO NOT GET WATER INSIDE CONTAINERS. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Prevent entry into waterways, sewers, basements or confined areas.

SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. (ERG, 2024)

Fireproof. See Chemical Dangers. Well closed.

REAGENT BOTTLE--MAX 1-LB, GLASS-STOPPERED, GLASS BOTTLE; KEPT IN A HEAVY GLASS TRAY WITH LARGER CAPACITY. ADDN LAB STORAGE SHOULD BE IN ORIGINAL BOTTLES INSIDE A GLASS CONTAINER PADDED WITH GLASS WOOL & HAVING GREATER CAPACITY THAN THE CONTAINER. CARBOYS & LARGE BOTTLES SHOULD BE STORED ON ACID-RESISTING NONCOMBUSTIBLE SHELVES, IN A NONCOMBUSTIBLE STRUCTURE. ALL STORAGE MUST BE SEPARATED FROM COMBUSTIBLE MATERIALS, ORG MATERIALS, STRONG DEHYDRATING AGENTS, OXIDIZING & REDUCING AGENTS. ...MUST BE STORED WHERE IT WILL NOT FREEZE... PROTECT AGAINST PHYSICAL DAMAGE. ELECTRICAL WIRING...IN STORAGE AREAS MUST BE OF WATERTIGHT TYPE TO PROTECT AGAINST CORROSIVE ACTION OF VAPORS.

...SHOULD BE STORED & USED IN GLASS OR OTHER INERT CONTAINERS (PREFERABLY UNBREAKABLE), & CORKS & RUBBER STOPPERS SHOULD NOT BE USED.

· 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.

2.5 [mg/m3]

28 [mg/m3]

170 [mg/m3]

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.

· Do not get water inside containers: a violent reaction may occur.

Fire Involving Tanks, Rail Tank Cars or Highway Tanks

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

· Dike runoff from fire control for later disposal.

· 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.

· Note: Some foams will react with the material and release corrosive/toxic gases.

· CO2 (except for Cyanides), dry chemical, dry sand, alcohol-resistant foam.

· Water spray, fog or alcohol-resistant foam.

· Avoid aiming straight or solid streams directly onto the product.

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

· Do not get water inside containers.

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

No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20 °C.

Corrosive. The vapour is very corrosive to the eyes, skin and respiratory tract. Inhalation of the vapour or mist may cause lung oedema. The effects may be delayed. Medical observation is indicated.

Rubber gloves; face shield or vapor-tight chemical-type safety goggles; rubber apron; rubber boots or shoes (USCG, 1999)

Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:

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)

...corrosion-resistant and impervious suits or overalls, foot protection, hand and arm protection, head protection and eye and face protection; where corrosive gases may be expected, appropriate respiratory protective equipment is required, ranging from simple masks or respirators to air or oxygen lines or self-contained breathing apparatus, coupled with gas-tight goggles...natural rubbers, synthetic rubbers, polyvinyl chloride, polypropylene or polyethylene either in sheet form or with a fabric backing are suitable. ... Where aprons are used instead of protective suits or overalls, these should have bibs; sleeves should be worn outside gauntlets or gloves and, similarly, trouser legs should cover the tops of the shoes... When the exposure to corrosive substances is not severe, suitable barrier creams can often be used instead of gloves. /CORROSIVE SUBSTANCES/

NO contact with combustible substances or reducing agents. Do NOT expose to friction or shock.

PREVENT GENERATION OF MISTS! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use ventilation, local exhaust or breathing protection. Use appropriate engineering controls.

Protective gloves. Protective clothing.

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

Do not eat, drink, or smoke during work.

Perchloric acid, with more than 50% but not more than 72% acid appears as a clear colorless odorless aqueous solution. Corrosive to metals and tissue. Closed containers may rupture violently under prolonged exposure to heat.

Perchloric acid, with not more than 50% acid appears as a clear colorless odorless aqueous solution. Corrosive to metals and tissue. Closed containers may rupture violently under prolonged exposure to heat.

Colorless, odorless oily liquid; [HSDB] Highly hygroscopic; [Merck Index]

COLOURLESS LIQUID WITH PUNGENT ODOUR.

COLORLESS, OILY LIQUID

odorless

19 °C @ 11 MM HG

-170 °F (USCG, 1999)

MISCIBLE IN COLD WATER

Solubility in water: miscible

1.6 to 1.7 at 77 °F (USCG, 1999)

1.768 @ 22 °C

VERY HYGROSCOPIC; COMBINES VIGOROUSLY WITH WATER WITH EVOLUTION OF HEAT; AQ ACID IS VERY CAUSTIC; DECOMP WHEN DISTILLED @ ATMOSPHERIC PRESSURE; DENSITY OF AQ SOLN @ 25 °C: 65.0%= 1.597; 70.0%= 1.664; 75.0%= 1.731; DENSITY OF AQ SOLN @ 15 °C: 1%= 1.0050; 10%= 1.0597; 20%= 1.1279; 30%= 1.2067; 40%= 1.2991; 50%= 1.4103; 60%= 1.5389; 70%= 1.6736

Relative density (water = 1): 1.76 (22 °C)

1.77 @25 °C

Relative vapor density (air = 1): 3.5

6.8 [mmHg]

VOLATILE

ON STORAGE EVEN IN DARK, ANHYDROUS ACID BECOMES DISCOLORED OWING TO DECOMPOSITION PRODUCTS & MAY EXPLODE SPONTANEOUSLY

UNSTABLE IN CONCENTRATED FORM

Toxic Gases & Vapors -> Oxidizers

Reactive agents - 3rd degree

Water soluble with some evolution of heat.

Water soluble with heat generation.

Acids, Strong Oxidizing

Water and Aqueous Solutions

Strong Oxidizing Agent

Known Catalytic Activity

Water-Reactive

CSL00002

DMSO + perchloric acid

mixture can result in explosion

Explosive

S (up to 1g)

oxidation

User-Reported

PERCHLORIC ACID, WITH MORE THAN 50% BUT NOT MORE THAN 72% ACID is a solution of a strong oxidizing acid. May react vigorously or deflagrate when mixed with oxidizable material [Merck]. This includes (but is not limited to) alcohols, amines, boranes, dicyanogen, hydrazines, hydrocarbons, hydrogen, nitroalkanes, powdered metals, silanes, or thiols [Bretherick 1979. p.174]. Perchloric acid ignites on contact with sulfinyl chloride. (Bailar, 1973, Vol. 2, 1442).

PERCHLORIC ACID, WITH NOT MORE THAN 50% ACID is a solution of a strong oxidizing acid. May react vigorously or deflagrate when mixed with oxidizable material [Merck]. This includes (but is not limited to) alcohols, amines, boranes, dicyanogen, hydrazines, hydrocarbons, hydrogen, nitroalkanes, powdered metals, silanes, or thiols [Bretherick 1979. p.174]. Perchloric acid ignites on contact with sulfinyl chloride. (Bailar, 1973, Vol. 2, 1442).

MIXTURES OF.../ACETIC ACID, PERCHLORIC ACID AND ACETIC ANHYDRIDE/ HAVE VARYING DEGREES OF SENSITIVITY TO SHOCK. ...ADDITION OF ACETIC ANHYDRIDE TO AQ SOLN OF PERCHLORIC ACID CAUSES FORMATION OF ACETIC ACID WHICH CAN REACT VIOLENTLY WITH PERCHLORIC ACID.

COMBINES VIGOROUSLY WITH WATER WITH EVOLUTION OF HEAT.

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

Sore throat. Burning sensation. Cough. Laboured breathing. Symptoms may be delayed.

Redness. Pain. Serious skin burns.

Redness. Pain. Loss of vision. Severe deep burns.

Sore throat. Abdominal pain. Burning sensation. Diarrhoea. Shock or collapse. Vomiting.

Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.

Dermatotoxin - Skin burns.

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

SYMPTOMATOLOGY (...INGESTION OR SKIN CONTACT): 1. CORROSION OF MUCOUS MEMBRANES OF MOUTH, THROAT AND ESOPHAGUS, WITH IMMEDIATE PAIN AND DYSPHAGIA. NECROTIC AREAS...GRAYISH WHITE BUT SOON ACQUIRE A BLACKISH DISCOLORATION (YELLOW IN CASE OF NITRIC ACID) & SOMETIMES SHRUNKEN OR WRINKLED TEXTURE... 2. EPIGASTRIC PAIN...MAY BE ASSOC WITH NAUSEA & VOMITING... AT TIMES, GASTRIC HEMORRHAGE MAY BE INTENSE, AND VOMITUS THEN CONTAINS FRESH BLOOD. PROFOUND THIRST. 3. ULCERATION OF ALL MEMBRANES AND TISSUES WITH WHICH THE ACID COMES IN CONTACT. AFTER THE INGESTION OF CONCN MINERAL ACID, THIS CORROSION MAY LEAD WITHIN A FEW HR OR A FEW DAYS TO GASTRIC PERFORATION AND PERITONITIS. 4. CIRCULATORY COLLAPSE WITH CLAMMY SKIN, WEAK & RAPID PULSE, SHALLOW RESP, AND SCANTY URINE. CIRCULATORY SHOCK IS OFTEN IMMEDIATE CAUSE OF DEATH. /ACIDS/

PERCHLORIC ACID, GIVEN ORALLY OR SC TO RATS & MICE, SHOWED IN ADDITION TO ITS IRRITATING EFFECT A SPECIFIC ANTITHYROID ACTION, & ALSO INDUCED ABNORMALITIES IN HEPATIC, RENAL, CARDIOVASCULAR, & HEMOPOIETIC FUNCTIONS.

LC100 CYPRINUS CARPIO 180 PPM/24 HR @ 25 °C

The substance is harmful to aquatic organisms.

LC100 CYPRINUS CARPIO 180 PPM/24 HR @ 25 °C

The substance is harmful to aquatic organisms.

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.

Neutralization, landfill, & discharge to sewer: Reduce perchloric acid with weak reducing agent (hypobisulfite or ferrous salt, plus sulfuric acid as accelerator have been recommended), neutralize with sodium carbonate or calcium oxide. The reduced neutralized slurry may be flushed to the drain with high dilution; otherwise deposit in an approved landfill.

/GUIDE 140: OXIDIZERS/ Fire or Explosion: These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. 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. /Perchloric acid, with not more than 50% acid/

/GUIDE 140: OXIDIZERS/ Health: Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or death. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution. /Perchloric acid, with not more than 50% acid/

/GUIDE 140: OXIDIZERS/ Public Safety: CALL Emergency Response Telephone Number ... . 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. /Perchloric acid, with not more than 50% acid/

/GUIDE 140: OXIDIZERS/ 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. /Perchloric acid, with not more than 50% acid/

For more DOT Emergency Guidelines (Complete) data for PERCHLORIC ACID (16 total), please visit the HSDB record page.

UN 1873; Perchloric acid, more than 50% but not more than 72% strength

UN 1802; Perchloric acid, not over 50% acid

49 185 22; Perchloric acid, not over 50% acid

49 185 23; Perchloric acid (exceeding 50% but not exceeding 72%)

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 Corrosive

Corrosive Oxidizer

Special material. Unbreakable packaging. Put breakable packaging into closed unbreakable container.

Symbol: O, C; R: 5-8-35; S: (1/2)-23-26-36-45

UN Hazard Class: 5.1; UN Subsidiary Risks: 8; UN Pack Group: I