Sodium Tripolyphosphate (STPP)

Product Name: Sodium Tripolyphosphate

CAS Number: 7758-29-4

Molecular Formulae: Na5P3O10

Synonyms: Polygon, STPP

 

Physical Properties

Molar Mass: 367.864

Appearance: White powder

Density: 2.52 g/cm3

Melting Point: 622 oC

Solubility in Water: 14.5 g/100ml at 25 oC

Assay: ≥ 94%

Content: As P2O5 ≥ 57%

 

Origin

Country of Origin: China

Supplier Reference Number: 16

 

Hazard Classification

International Maritime Organisation (IMO): Not Regulated

Road Transport (ADR): Not Regulated

Risk Phrases: Not classified

Hazard Phrases: Not classified

 

Impurity Profile

Water insoluble matter ≤ 0.15%, Total Fe ≤ 0.01%, Ph of 1% Aq Soln 9.2-10.0

Particle size : 16 mesh 95 % passes, 35 mesh 90% passes, 100 mesh 40% passes

 

Packaging

Available Units (KG): 25,50