AMMONIUM PHOSPHATE DIBASIC 0217
March 1998
Diammonium hydrogen phosphate
CAS No: 7783-28-0
Ammonium phosphate secondary
RTECS No:
(NH4)2HPO4
UN No:
Molecular mass: 132.1
EC No:
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Not combustible. Gives off In case of fire in the surroundings:
FIRE
irritating or toxic fumes (or gases) all extinguishing agents allowed.
in a fire.
EXPLOSION
EXPOSURE
Local exhaust. Fresh air, rest.
Inhalation
Protective gloves. Rinse skin with plenty of water or
Skin
shower.
Redness. Pain. Safety spectacles. First rinse with plenty of water for
Eyes
several minutes (remove contact
lenses if easily possible), then take
to a doctor.
Do not eat, drink, or smoke during Rinse mouth. Refer for medical
Ingestion
work. attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into covered containers; if Symbol
appropriate, moisten first to prevent dusting. Wash R:
away remainder with plenty of water (extra personal S:
protection: P2 filter respirator for harmful particles)
EMERGENCY RESPONSE STORAGE
Separated from strong oxidants, strong bases, strong acids. Keep in a
well-ventilated room.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission
International 漏 IPCS 1999
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0217 AMMONIUM PHOSPHATE DIBASIC
IMPORTANT DATA
Physical State; Appearance Routes of Exposure
ODOURLESS WHITE CRYSTALS OR POWDER. The substance can be absorbed into the body by inhalation of
its aerosol.
Physical Dangers
Inhalation Risk
Evaporation at 20C is negligible; a nuisance-causing
Chemical Dangers
concentration of airborne particles can, however, be reached
The substance decomposes on heating above 100C, on
quickly when dispersed, especially, if powdered.
contact with strong bases, producing toxic and corrosive fumes
including ammonia, nitrogen oxides and phosphorous oxides.
Effects of Short-term Exposure
The solution in water is a weak base. Reacts vigorously with
strong acids and strong oxidants. Gradually gives off ammonia The substance irritates the eyes.
on exposure to air.
Occupational Exposure Limits
TLV not established.
PHYSICAL PROPERTIES
Decomposes below melting point at 100C Solubility in water, g/100 ml at 10C: 57.5
Relative density (water = 1): 1.6
ENVIRONMENTAL DATA
NOTES
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
for the use which might be made of this information
漏 IPCS 1999
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