Sodium metaphosphate

  • Sodium ultraphosphate
  • Sodium polymetaphosphate
  • Metaphosphoric acid, sodium salt
  • Calgon PT
Description
White solid.
Uses
Water softeners and detergents.

Registry Numbers and Inventories.
CAS
50813-16-6
EC (EINECS/ELINCS)
256-779-4
UN (DOT)
1759
Merck
12,8814
Canada DSL/NDSL
DSL
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Unspecified
Density
2.4 g/cm3
Solubility in water
Soluble

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from metals. Do not store in metal containers.
E
Protection
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. Wear appropriate gloves to prevent skin exposure. Wear appropriate protective clothing to prevent skin exposure.
Respirators
ollow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Small spills/leaks
Cover with sand, dry lime or soda ash and place in a closed container for disposal.
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Metals, water.
Decomposition
Oxides of phosphorus.

Fire.
Fire fighting
For small fires, use water spray, dry chemical, carbon dioxide or chemical foam. Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Combustion products
Combustion generates toxic fumes.
Health
3
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Prolonged inhalation may cause respiratory tract inflammation and lung damage. Prolonged or repeated skin contact may cause dermatitis. Repeated contact may cause corneal damage.
   Ingestion
Causes severe pain, nausea, vomiting, diarrhea, and shock. May cause hemorrhaging of the digestive tract. May cause corrosion and permanent tissue destruction of the esophagus and digestive tract.
   Inhalation
Irritation may lead to chemical pneumonitis and pulmonary edema. Causes severe irritation of upper respiratory tract with coughing, burns, breathing difficulty, and possible coma.
   Skin
Contact with is corrosive to the eyes and causes severe burns.
   Eyes
May cause irreversible eye injury. Contact with is corrosive to the eyes and causes severe burns.

First aid
 
   Ingestion
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1759
Response guide
Hazard class
8
Packing Group
III