Potassium phosphate, monobasic
Phosphoric acid, monopotassium salt
KH2PO4
Molecular mass: 136.1
ICSC # 1608
CAS # 7778-77-0
RTECS # TC6615500
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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•Inhalation
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Cough.
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Ventilation (not if powder), local exhaust, or breathing protection.
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Fresh air, rest.
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•Skin
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Redness.
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Protective gloves.
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Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety goggles
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Vomiting.
Diarrhoea.
Nausea.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give plenty of water to drink.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: P2 filter respirator for harmful particles.
Sweep spilled substance into covered containers.
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Separated from
strong bases.
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Important Data
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Physical State; Appearance:
COLOURLESS
CRYSTALS
OR
WHITE
CRYSTALLINE POWDER
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing
toxic gases
.
The solution in water is a weak acid.
Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by ingestion.
Inhalation Risk:
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
,
the skin
and
the respiratory tract
.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point: 253°C
Density: 2.34
g/cm3
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Solubility in water, g/100 ml: 22
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Environmental
Data
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N O T E S
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ADDITIONAL INFORMATION
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ICSC: 1608
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POTASSIUM DIHYDROGEN PHOSPHATE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the 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.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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