International Chemical Safety Cards
POTASSIUM OXIDE ICSC: 0769
POTASSIUM OXIDE
Potassium monoxide
K2O
Molecular mass: 94.2
CAS # 12136-45-7
RTECS # TT3790000
ICSC # 0769
UN # 2033
TYPES OF
ACUTE HAZARDS/ FIRST AID/
HAZARD/ PREVENTION
SYMPTOMS FIRE FIGHTING
EXPOSURE
Not combustible. Powder, carbon dioxide, NO
FIRE hydrous agents.
EXPLOSION
PREVENT DISPERSION OF
EXPOSURE DUST! AVOID ALL CONTACT!
Sore throat. Cough. Burning Local exhaust or breathing Fresh air, rest. Half-upright
sensation. Shortness of breath. protection. position. Artificial respiration if
INHALATION
Symptoms may be delayed (see indicated. Refer for medical
Notes). attention.
Pain. Blisters. Protective gloves. Protective Rinse skin with plenty of water
clothing. or shower. Refer for medical
SKIN
attention.
Redness. Pain. Severe deep Safety goggles, or eye protection in First rinse with plenty of water
burns. combination with breathing for several minutes (remove
EYES
protection if powder. contact lenses if easily
possible), then take to a doctor.
Burning sensation. Abdominal Do not eat, drink, or smoke during Rinse mouth. Do NOT induce
pain. Shock or collapse. work. vomiting. Refer for medical
INGESTION
attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Sweep spilled substance into containers; Separated from strong acids, food and Airtight. Do not transport with food and
if appropriate, moisten first to prevent feedstuffs. Dry. feedstuffs.
dusting. Carefully collect remainder, then UN Hazard Class: 8
remove to safe place (extra personal UN Packing Group: II
protection: chemical suit with breathing
apparatus).
SEE IMPORTANT INFORMATION ON BACK
Prepared in the context of cooperation between the International Programme on Chemical Safety & the
ICSC: 0769 Commission of the European Communities 漏 IPCS CEC 1993
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International Chemical Safety Cards
POTASSIUM OXIDE ICSC: 0769
PHYSICAL STATE; APPEARANCE: ROUTES OF EXPOSURE:
I COLOURLESS CRYSTALLINE, HYGROSCOPIC The substance can be absorbed into the body by
POWDER. inhalation and by ingestion.
M
PHYSICAL DANGERS: INHALATION RISK:
P Evaporation at 20掳C is negligible; a harmful
concentration of airborne particles can, however,
O be reached quickly.
CHEMICAL DANGERS:
The solution in water is a strong base, it reacts
R violently with acid and is corrosive. Reacts violently EFFECTS OF SHORT-TERM EXPOSURE:
with water producing potassium hydroxide. Attacks Corrosive. The substance is corrosive to the eyes,
T many metals in presence of water. the skin and the respiratory tract. Inhalation of
dusts may cause lung oedema (see Notes). The
A effects may be delayed. Medical observation is
OCCUPATIONAL EXPOSURE LIMITS
indicated.
(OELs):
N TLV not established.
EFFECTS OF LONG-TERM OR REPEATED
T EXPOSURE:
D
A
T
A
Melting point (decomposes): 350掳C Solubility in water: reaction
PHYSICAL
Relative density (water = 1): 2.3
PROPERTIES
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 on potassium hydroxide.
Transport Emergency Card: TEC (R)-80G09
ADDITIONAL INFORMATION
ICSC: 0769 POTASSIUM OXIDE
漏 IPCS, CEC, 1993
Neither the CEC or 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. This card contains the
IMPORTANT LEGAL NOTICE: collective views of the IPCS Peer Review Committee and may not reflect in all cases all the
detailed requirements included in national legislation on the subject. The user should verify
compliance of the cards with the relevant legislation in the country of use.
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