ICSC 0983 - TETRAPOTASSIUM PYROPHOSPHATE

TETRAPOTASSIUM PYROPHOSPHATE	ICSC: 0983 (September 1997)
Potassium pyrophosphate Pyrophosphoric acid, tetrapotassium salt

CAS #: 7320-34-5

EC Number: 230-785-7

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed. See Notes.	Use local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Refer for medical attention.
Skin	Redness. Skin burns. Pain. Blisters.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
Eyes	Redness. Pain. Severe deep burns.	Wear face shield or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Burning sensation. Shock or collapse. Sore throat.	Do not eat, drink, or smoke during work.	Rinse mouth. Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.	According to UN GHS Criteria Transportation UN Classification
STORAGE
Separated from strong acids. Dry.
PACKAGING

TETRAPOTASSIUM PYROPHOSPHATE

ICSC: 0983

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance ODOURLESS HYGROSCOPIC WHITE GRANULES OR POWDER. Physical dangers Chemical dangers The solution in water is a medium strong base. Reacts with strong acids.	Formula: K₄O₇P₂ Molecular mass: 330.35 Melting point: 1090°C Solubility in water, g/100ml at 25°C: 187 (very good)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS HYGROSCOPIC WHITE GRANULES OR POWDER.

Physical dangers

Chemical dangers
The solution in water is a medium strong base. Reacts with strong acids.

Formula: K₄O₇P₂
Molecular mass: 330.35
Melting point: 1090°C
Solubility in water, g/100ml at 25°C: 187 (very good)

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of dust. Effects of short-term exposure The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the aerosol may cause lung oedema. See Notes.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of dust.

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the aerosol may cause lung oedema. See Notes.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES
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.

ADDITIONAL INFORMATION

EC Classification

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    See Also:
       Toxicological Abbreviations
       TETRAPOTASSIUM PYROPHOSPHATE (JECFA Evaluation)