Sodium Tripolyphosphate
Molecular Formula: Na5P3O10
Molecular Weight: 367.86
CAS Number: 7758-29-4
Alias : STPP
Customs Codes:28353190
Characteristics:
- Melting point: 622°C
- Easily soluble in water, with aqueous solutions being alkaline
- Gradually hydrolyzes into orthophosphoric acid in water
- Has a good ability to complex with metal ions
- Can chelate with calcium, magnesium, iron, and other metal ions to form soluble complexes
- Can soften hard water
- As an inorganic surfactant, it has some properties of organic surfactants