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HomeProduct name listSodium trimetaphosphate

Sodium trimetaphosphate

Synonym(s):Sodium cyclotriphosphate;Trisodium trimetaphosphate

  • CAS NO.:7785-84-4
  • Empirical Formula: 3Na.O9P3
  • Molecular Weight: 305.88
  • MDL number: MFCD00867826
  • EINECS: 232-088-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-30 18:52:02
Sodium trimetaphosphate  Structural

What is Sodium trimetaphosphate ?

Chemical properties

efflorescent; tricl-rhomb prisms [MER06]

The Uses of Sodium trimetaphosphate

Sodium Trimetaphosphate works as the crosslinking agent in the cross-linked amylase-resistant starch.

The Uses of Sodium trimetaphosphate

Pharmaceutic aid.

Industrial uses

Sodium trimetaphosphate, Na3[P3O9], is the most stable compound of this group of reagents. The hydrated form of sodium trimetaphosphate contains 6 or 10 molecules of water of crystallization. Commercial production is obtained by heating NaPO3 at 525 °C.

Safety Profile

Poison by intravenous route. Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic fumes of POx and Na2O. See also PHOSPHATES.

Purification Methods

It is precipitated from an aqueous solution at 40o by adding EtOH. It is dried in air.

Properties of Sodium trimetaphosphate

Melting point: 53℃ [MER06]
Density  2.49
storage temp.  Inert atmosphere,Room Temperature
solubility  Water (Slightly)
form  Powder
color  White
Specific Gravity 2.49
Water Solubility  Soluble in water. Insoluble in alcohol.
Merck  14,8696
CAS DataBase Reference 7785-84-4(CAS DataBase Reference)
EPA Substance Registry System Sodium trimetaphosphate (7785-84-4)

Safety information for Sodium trimetaphosphate

Computed Descriptors for Sodium trimetaphosphate

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