AMMONIUM PHOSPHATE DIBASIC (ICSC)

AMMONIUM PHOSPHATE DIBASIC	ICSC: 0217

Date of peer-review: March 1998

Diammonium hydrogen phosphate
Ammonium phosphate secondary

CAS #	7783-28-0	(NH₄)₂HPO₄
RTECS #	@TB9375000	Molecular mass: 132.1
UN #
EC #

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION

EXPOSURE
Inhalation		Local exhaust.	Fresh air, rest.
Skin		Protective gloves.	Rinse skin with plenty of water or shower.
Eyes	Redness. Pain.	Safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. (Extra personal protection: P2 filter respirator for harmful particles.)

EU Classification
UN Classification

EMERGENCY RESPONSE

STORAGE

Separated from strong oxidants, strong bases, strong acids. Keep in a well-ventilated room.

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 2001

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AMMONIUM PHOSPHATE DIBASIC

ICSC: 0217

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
ODOURLESS WHITE CRYSTALS OR POWDER.

CHEMICAL DANGERS:
The substance decomposes on heating above 100°C, on contact with strong bases, producing toxic and corrosive fumes including ammonia, nitrogen oxides and phosphorous oxides. The solution in water is a weak base. Reacts vigorously with strong acids and strong oxidants. Gradually gives off ammonia on exposure to air.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol.

INHALATION RISK:
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed, especially, if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes.

PHYSICAL PROPERTIES

Decomposes below melting point at 100°C
Relative density (water = 1): 1.6
Solubility in water, g/100 ml at 10°C: 57.5

ENVIRONMENTAL DATA

NOTES

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

    See Also:
       Toxicological Abbreviations