ICSC 1129 - DISODIUM HYDROGEN PHOSPHATE

DISODIUM HYDROGEN PHOSPHATE	ICSC: 1129 (April 2006)
Disodium orthophosphate Dibasic sodium phosphate

CAS #: 7558-79-4

EC Number: 231-448-7

	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.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat.	Use ventilation.	Fresh air, rest.
Skin	Redness. Pain.	Protective gloves.	Rinse skin with plenty of water or shower.
Eyes	Redness. Pain.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Diarrhoea.	Do not eat, drink, or smoke during work.	Rinse mouth. Give one or two glasses of water to drink.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.	According to UN GHS Criteria WARNING Causes mild skin irritation Causes eye irritation Transportation UN Classification
STORAGE
Separated from strong acids.
PACKAGING

DISODIUM HYDROGEN PHOSPHATE

ICSC: 1129

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE OR COLOURLESS HYGROSCOPIC CRYSTALS OR POWDER. Physical dangers Chemical dangers Decomposes on heating. This produces toxic fumes. Reacts violently with strong acids.	Formula: HO₄PNa₂ Molecular mass: 141.96 Decomposes at ~250°C Density: 0.5-1.2 g/cm³ Solubility in water, g/100ml at 20°C: 7.7 Octanol/water partition coefficient as log Pow: -5.8 (calculated)

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE OR COLOURLESS HYGROSCOPIC CRYSTALS OR POWDER.

Physical dangers

Chemical dangers
Decomposes on heating. This produces toxic fumes. Reacts violently with strong acids.

Formula: HO₄PNa₂
Molecular mass: 141.96
Decomposes at ~250°C
Density: 0.5-1.2 g/cm³
Solubility in water, g/100ml at 20°C: 7.7
Octanol/water partition coefficient as log Pow: -5.8 (calculated)

EXPOSURE & HEALTH EFFECTS
Routes of exposure Effects of short-term exposure The substance is mildly irritating to the eyes, skin and respiratory tract.	Inhalation risk A harmful concentration of airborne particles can be reached quickly when dispersed. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure

Effects of short-term exposure
The substance is mildly irritating to the eyes, skin and respiratory tract.

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES

ADDITIONAL INFORMATION

EC Classification

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.

    See Also:
       Toxicological Abbreviations
       DISODIUM HYDROGEN PHOSPHATE (JECFA Evaluation)