Sodium hydrogen phosphate dodecahydrate
- Disodium orthophosphate dodecahydrate
- Disodium hydrogen orthophosphate dodecahydrate
- Monosodium phosphate dodecahydrate
- hosphoric acid disodium dodecahydrate
- Phosphoric acid, disodium salt, dodecahydrate
Registry Numbers and Inventories.
Japan ENCS (MITI)
HNa2O4P . 12H2O
Melting point, °C
Vapor density (air=1)
1.52 g/cm3 (17 C)
Solubility in water
115 g/L (12 C(
Heat of fusion
Hazards and Protection.
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.
Stable under normal temperatures and pressures.
Oxides of phosphorus, sodium oxide.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire.
5 (Substances and products with a low hazard& potential)
May cause irritation of the digestive tract. Expected to be a low ingestion hazard.
May cause respiratory tract irritation. Low hazard for usual industrial handling.
Causes skin irritation.
Causes eye irritation.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
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