Sodium Tripolyphosphate Powder Descriptions
Sodium Tripolyphosphate Powder (CAS 7758-29-4) is an inorganic substance with the chemical formula Na5P3O10. Sodium Tripolyphosphate Powder has the functions of chelating, suspending, dispersing, peptizing, emulsifying and pH buffering. Sodium Tripolyphosphate Powder can be used as the main auxiliary agent of synthetic detergent, industrial water softener, leather pre-tanning agent, dyeing auxiliary agent, organic synthesis catalyst, pharmaceutical industry dispersant, and food additive, etc.
Sodium Tripolyphosphate Powder Specifications
Physicochemical Information
|
Density
|
2.52 g/cm3 (20 °C)
|
Melting Point
|
622 °C (decomposition)
|
pH value
|
9.9 (10 g/l, H₂O, 20 °C)
|
Vapor pressure
|
<0.1 hPa (20 °C)
|
Bulk density
|
1000 kg/m3
|
Solubility
|
145 g/l
|
Toxicological Information
|
LD 50 oral
|
LD50 Rat 3120 mg/kg
|
LD 50 dermal
|
LD50 Rabbit > 7940 mg/kg
|
Sodium Tripolyphosphate Powder Applications
-In detergents.
In hard water, detergents are deactivated. Being a highly charged chelating agent, TPP5−binds to dications tightly and prevents them from interfering with the sulfonate detergent.
-Food applications
STPP is a preservative for seafood, meats, poultry, and animal feeds. In foods, STPP is used as an emulsifier and to retain moisture. Many governments regulate the quantities allowed in foods, as it can substantially increase the sale weight of seafood in particular.
-Other uses
Ceramics (decrease the viscosity of glazes up to a certain limit);
Leather tanning (as a masking agent and synthetic tanning agent - SYNTAN);
Anticaking agents, setting retarders, flame retardants, paper, anticorrosion pigments, textiles, rubber manufacture, fermentation, antifreeze, etc.
Sodium Tripolyphosphate Powder Safety Information
Safety Information according to GHS
|
Storage class
|
10 - 13 Other liquids and solids
|
WGK
|
WGK 1 slightly hazardous to water
|
Disposal
|
14
Inorganic salts: Container I. Neutral solutions of the salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips.
|