INTOX Home Page
POTASSIUM OXIDE ICSC: 0769
Date of Peer Review: March 1996

Potassium monoxide
CAS # 12136-45-7 K2O
RTECS # Molecular mass: 94.2
UN # 2033
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible.

Powder, carbon dioxide, NO hydrous agents.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!

Inhalation Sore throat. Cough. Burning sensation. Shortness of breath. Symptoms may be delayed (see Notes).
Local exhaust or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention.
Skin Pain. Blisters.
Protective gloves. Protective clothing.
Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Redness. Pain. Severe deep burns.
Safety goggles, or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Burning sensation. Abdominal pain. Shock or collapse.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (Extra personal protection: chemical suit with breathing apparatus).
Airtight. Do not transport with food and feedstuffs.
EU Classification
UN Classification
UN Hazard Class: 8
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-80G09
Separated from strong acids, food and feedstuffs. Dry.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK


POTASSIUM OXIDE ICSC: 0769
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALLINE, HYGROSCOPIC POWDER.

CHEMICAL DANGERS:
The solution in water is a strong base, it reacts violently with acid and is corrosive. Reacts violently with water producing potassium hydroxide. Attacks many metals in presence of water.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and by ingestion.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
Corrosive. The substance is corrosive to the eyes, the skin and the respiratory tract. Inhalation of dusts may cause lung oedema (see Notes). The effects may be delayed. Medical observation is indicated.

PHYSICAL PROPERTIES
Melting point (decomposes): 350C
Relative density (water = 1): 2.3
Solubility in water: reaction
ENVIRONMENTAL DATA

NOTES
Reacts violently with fire extinguishing agents such as water. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered. Also consult ICSC # 0357 Potassium hydroxide.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999