Sodium Hexametaphosphate
Sodium hexametaphosphate is a salt of composition Na₆[(PO₃)₆]. Sodium hexametaphosphate of commerce is typically a mixture of metaphosphates, of which the hexamer is one, and is usually the compound referred to by this name. Such a mixture is more correctly termed sodium polymetaphosphate.
- Synonyms
- Graham's Salt, Metaphosphoric Acid Sodium Salt, Polyphosphoric Acid Sodium Salt, SHMP, Sodium Hexametaphosphate, Sodium Hexametaphosphate Short Chain, Sodium Metaphosphate, Sodium Polyphosphate
- Chemical Formula
- CaH6Na4O18P6+6
- CAS Number
- 68915-31-1
Characteristics
- Molar Weight
- 611.77 g/mol
- Melting Point
- 628 °C
- Boiling Point
- 1,500 °C
- Density
- 2.484 g/cc
- Forms
- White, Granules
Uses and Applications
Key applications
- Buffer agent
- Photographic supplies
- Leather processing
- Water treatment
- Cleaning products
- Oil and Gas
- Pulp and paper
- Textile handling
- Detergent
- Rubber