Sodium Trimetaphosphate

Basic Information

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CAS Number

7785-84-4

Molecular Formula

Na3O9P3

Molecular Weight

239.94 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Agricultural Chemicals Pesticides Insecticides

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

53°C

Density

2.49

Water Solubility

Soluble in water. Insoluble in alcohol.

SMILES

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[O-]P1(=O)OP(=O)(OP(=O)(O1)[O-])[O-].[Na+].[Na+].[Na+]

InChI

InChI=1S/3Na.H3O9P3/c;;;1-10(2)7-11(3,4)9-12(5,6)8-10/h;;;(H,1,2)(H,3,4)(H,5,6)/q3*+1;/p-3

InChIKey

UGTZMIPZNRIWHX-UHFFFAOYSA-K

LogP

1.66560

Complexity

224

Synonyms & References

English

trimetaphosphate grade iii trisodium
trimetaphosphate trisodium
trisodium cyclo-triphosphate
Sodium Trimetaphosphate
Trisodium trimetaphosphate
TRIMETAPHOSPHATE TRISODIUM SALT ANHYDROUS
trimetaphosphate grade iii trisodiu
SodiuMMetaphosphate
Sodium cyclotriphosphate
Metaphosphoric acid trisodium salt
Sodiumtrimetaphosphate
Trisodium metaphosphate
Cyclic sodium trimetaphosphate
Sodium trimetaphosphate [USAN]
Sodium phosphate ((NaPO3)3)
Metaphosphoric acid, trisodium salt
Sodium metaphosphate (Na3(P3O9))
Trisodium trimetaphosphate (Na3P3O9)
Cyclisches trinatriummetaphosphat [German]
Metaphosphoric acid (H3P3O9), trisodium salt
Trimetaphosphoric acid (H3P3O9), trisodium salt
3IH6169RL0
1,3,5,
1,3,5,2,4,6Trioxatriphosphorinane, 2,4,6trihydroxy, trisodium salt
D02423
E75943
EC 232-088-3
trisodium;2,4,6-trioxido-1,3,5,2lambda5,4lambda5,6lambda5-trioxatriphosphinane 2,4,6-trioxide
NS00131907
CCRIS 8524
SODIUM TRIMETAPHOSPHATE [INCI]

MDL Number

MFCD00867826

Customs Code

2835399000

FAQ

What is Sodium Trimetaphosphate (CAS: 7785-84-4)?

Sodium trimetaphosphate (CAS 7785-84-4) is a sodium salt of trimetaphosphoric acid with the chemical formula Na3P3O9. It is a white, water-soluble powder known for its chelating properties and ability to prevent scaling in industrial applications. Sodium trimetaphosphate is commonly used in water treatment and pharmaceuticals due to its chemical stability and reactivity with metal ions.

What are the main uses of Sodium Trimetaphosphate (CAS: 7785-84-4)?

Sodium trimetaphosphate (CAS 7785-84-4) is widely used in pharmaceuticals as a metal chelator, in the food industry as an emulsifier and stabilizer, and in industrial water treatment for corrosion inhibition. It also serves as a flame retardant additive and is employed in research for pH regulation and analytical chemistry applications. Its versatility makes it valuable in multiple sectors, including detergents and polymer processing.

Is Sodium Trimetaphosphate (CAS: 7785-84-4) safe?

Sodium trimetaphosphate (CAS 7785-84-4) is generally considered non-toxic and safe for use under proper handling conditions. However, it may cause mild irritation if inhaled or contacted with skin/eyes, so protective measures like gloves and ventilation are recommended. Safety standards classify it as low hazard, but occupational exposure should be minimized to ensure compliance with chemical safety guidelines.

How should Sodium Trimetaphosphate (CAS: 7785-84-4) be stored?

Sodium trimetaphosphate (CAS 7785-84-4) should be stored in a cool, dry place, away from moisture and light. Keep in airtight, sealed containers to prevent hygroscopic degradation. Storage conditions should maintain temperatures below 25°C and humidity levels below 60% to preserve stability. Avoid exposure to water and ensure proper labeling for safe handling and storage.