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Potassium superoxide

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[Fire Fighting]

Use dry chemical, graphite, or dry earth. Use water only if flooding quantities are available. Apply water from as far a distance as possible.
[Fire Potential]

May explode from friction, heat or contamination. These substances will accelerate burning when involved in a fire.

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Immediately flush skin or eyes with running water for at least 20 minutes.

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation.

May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns.

May cause severe respiratory tract irritation and possible burns.

May cause severe skin irritation and burns.

Contact with eyes may cause severe irritation, and possible eye burns.

May explode from friction, heat or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react explosively with hydrocarbons (fuels). Containers may explode when heated. Runoff may create fire or explosion hazard.
[EC Risk Phrase]

R 8 35
[EC Safety Phrase]

S 17 26 36/37/39 45
[UN (DOT)]

[Personal Protection]

Wear appropriate protective gloves, clothing and goggles.

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

A yellowish to white solid.
[Solubility in water]

Rigorous decomposition
[Melting Point]


2.14 g/cm3

Used in chemical oxygen generators. Canister rebreathers for fire fighting/mine rescue.
[Product Name]

Potassium superoxide

Potassium dioxide


[Molecular Weight]



[RTECS Class]


10084 (G)
[EC Class]

oxidizing, corrosive
[Small spills/leaks]

Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Use water spray to disperse the gas/vapor.
[Disposal Code]


Oxidizing agents, carbon, 2-aminophenol + tetrahydrofuran, acids, alcohols and glycols (e.g. butyl alcohol, ethanol, methanol, ethylene glycol), aldehydes (e.g. acetaldehyde, acrolein, chloral hydrate, formaldehyde), amides (e.g. butyramide, diethyltoluamide, dimethyl formamide), amines (aliphatic and aromatic, e.g. dimethyl amine, propylamine, pyridine, triethylamine), azo, diazo, and hydrazines (e.g. dimethyl hydrazine, hydrazine, methyl hydrazine), carbamates (e.g. carbanolate, carbofuran), cyanides (e.g. potassium cyanide, sodium cyanide), dithiocarbamates (e.g. ferbam, maneb, metham, thiram), esters (e.g. butyl acetate, ethyl acetate, propyl formate), ethers (e.g. dioxane, furfuran, tetrahydrofuran (THF)), hydrocarbons (aromatic, e.g. benzene, chrysene

Stable under normal temperatures and pressures.

Irritating and toxic fumes and gases.
[Combustion Products]

Fire may produce irritating and/or toxic gases.
[UN Number]

[Hazard Class]

[Packing Group]

[HS Code]

2825 90 80