Sodium Tripolyphosphate

Na₅P₃O₁₀

IUPAC: Sodium triphosphate

CAS: 7758-29-4

Aperçu

STPP is the most commonly used detergent builder, softening water by sequestering calcium and magnesium ions. It is restricted in some regions due to eutrophication.

Composition

Élément	Symbole	Atomes	Masse atomique
Oxygen	O	10	15,9990
Sodium	Na	5	22,9900
Phosphorus	P	3	30,9740

Composition élémentaire

Oxygen ×10

43,5%

Sodium ×5

31,2%

Phosphorus ×3

25,3%

Usages

• Detergent builder
• Water softener
• Food additive (E451)
• Ceramic dispersant

Le saviez-vous

✦ Phosphate detergent bans in the 1970s-80s significantly reduced algal blooms in lakes

Sécurité

⚠ Environmental concern (eutrophication)

Structure

SMILES

[O-]P(=O)([O-])OP(=O)([O-])OP(=O)([O-])[O-].[Na+].[Na+].[Na+].[Na+].[Na+]

Propriétés

Type: salt
État: solid
Masse molaire: 367,86 g/mol
Densité: 2,5200 g/cm³
Point de fusion: 622,0 °C
Solubilité: 145 g/L at 25°C

Molecular Descriptors

Exact Mass: 367,8193
TPSA: 185,0 Å²
H-Bond Donors: 0
H-Bond Acceptors: 10
Rotatable Bonds: 2
Heavy Atoms: 18
Complexity: 241,0

Composés associés

Diammonium Phosphate

(NH₄)₂HPO₄

Ammonium Chloride

NH₄Cl

Barium Chloride

BaCl₂

Cadmium Sulfide

CdS

Calcium Sulfate

CaSO₄

Cerium(III) Chloride

CeCl₃

Copper(II) Sulfide

CuS

Ammonium Sulfate

(NH₄)₂SO₄

Ammonium Bicarbonate

NH₄HCO₃

Calcium Propionate

Ca(C₂H₅COO)₂

Frequently Asked Questions

What is Sodium Tripolyphosphate?

Sodium Tripolyphosphate (Na₅P₃O₁₀) is a salt compound with the IUPAC name Sodium triphosphate.

What is the molecular weight of Sodium Tripolyphosphate?

Sodium Tripolyphosphate has a molar mass of 367.86 g/mol.

What state is Sodium Tripolyphosphate at room temperature?

Sodium Tripolyphosphate is a solid at room temperature.

Is Sodium Tripolyphosphate organic or inorganic?

Sodium Tripolyphosphate is classified as an inorganic compound.

What elements make up Sodium Tripolyphosphate?

Sodium Tripolyphosphate (Na₅P₃O₁₀) is composed of Oxygen (O), Sodium (Na), Phosphorus (P).