ChemicalBook Product Catalog Inorganic chemistry Inorganic salts Phosphide And metal phosphates Sodium trimetaphosphate

Sodium trimetaphosphate

Sodium trimetaphosphate Basic information
Product Name:Sodium trimetaphosphate
Synonyms:SODIUM TRIMETAPHOSPHATE;STMP;TRIMETAPHOSPHATE TRISODIUM SALT;TRISODIUM TRIMETAPHOSPHATE;3,5,2,4,6-trioxatriphosphorinane,2,4,6-trihydroxy-trisodiumsalt;cyclicsodiumtrimetaphosphate;cyclischestrinatriummetaphosphat;Metaphosphoricacid(H3P3O9),trisodiumsalt
CAS:7785-84-4
MF:3Na.O9P3
MW:305.88
EINECS:232-088-3
Product Categories:Inorganics;Inorganic Salts;Salts;Sodium Salts;SodiumMetal and Ceramic Science;Synthetic Reagents;Chemical Synthesis;Inorganic Salts;Materials Science;Metal and Ceramic Science;Sodium;Sodium Salts;Synthetic Reagents
Mol File:7785-84-4.mol
Sodium trimetaphosphate Structure
Sodium trimetaphosphate Chemical Properties
Melting point 53℃ [MER06]
density 2.49
storage temp. Inert atmosphere,Room Temperature
solubility Water (Slightly)
form Powder
Specific Gravity2.49
color White
Water Solubility Soluble in water. Insoluble in alcohol.
Merck 14,8696
CAS DataBase Reference7785-84-4(CAS DataBase Reference)
EPA Substance Registry SystemSodium trimetaphosphate (7785-84-4)
Safety Information
Safety Statements 44
RIDADR UN 3077 9 / PGIII
WGK Germany 2
RTECS OY4025000
TSCA Yes
HS Code 28353190
Hazardous Substances Data7785-84-4(Hazardous Substances Data)
MSDS Information
ProviderLanguage
Metaphosphoric acid trisodium salt English
Sodium trimetaphosphate Usage And Synthesis
Chemical Propertiesefflorescent; tricl-rhomb prisms [MER06]
UsesPharmaceutic aid.
UsesSodium Trimetaphosphate works as the crosslinking agent in the cross-linked amylase-resistant starch.
Industrial usesSodium 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 ProfilePoison by intravenous route. Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic fumes of POx and Na2O. See also PHOSPHATES.
Purification MethodsIt is precipitated from an aqueous solution at 40o by adding EtOH. It is dried in air.
Sodium polyphosphate Sodium benzoate Sodium acetate Ethyl 2-(Chlorosulfonyl)acetate sodium Sodium chloride Folic acid Glycine Diclofenac sodium Sodium formate Sodium citrate Sodium bicarbonate Sodium hydroxide phosphoric acid Sodium metaphosphate METAPHOSPHORIC ACID Sodium gluconate Sodium carbonate
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