Question

What is the trade name of sodium hexa-metaphosphate?

Answer 1

Sodium hexametaphosphate (SHMP) is a hexamer of composition (NaPO3)6.[2] Sodium hexametaphosphate of commerce is typically a mixture of polymeric metaphosphates, of which the hexamer is one, and is usually the compound referred to by this name. It is more correctly termed sodium polymetaphosphate.

Sodium hexametaphosphate[1]NamesOther names

Calgon S

Glassy sodium
Graham's salt
Hexasodium metaphosphate