Sodium hexametaphosphate (Polifosfat of sodium, Grakham's Salt)

SODIUM POLYPHOSPHATE TECHNICAL

(sodium hexametaphosphate, Grakham's salt)

GOST 20291 - 80

Application

Sodium polyphosphate technical (Grakham's salt) is applied in the textile industry to the prevention of education on fabrics of calcic salts, in tanning production, in railway and industrial power plants to water demineralizing, in oil industry to drilling of wells.

Formula: _{(NaPO3) of n} • _nH2O

Requirements bezopasnostinatriya polyphosphate technical is fire and explosion - proof, is not toxic.

Upakovkanatriya polyphosphate technical is packed into plywood drums, barrels plywood and stamped with a net weight no more than 60 kg.

Physical and chemical indicators

Name of indicator	Norm
1. Appearance	Vitreous transparent substance in the form of pieces colourless or yellowish - greenish shade.
2. Mass fraction of polysodium phosphate in terms of oxide of phosphorus (V), % , not less	61.5
3. Mass fraction of inactive phosphates in terms of oxide of phosphorus (V), % , no more	7
4. Mass fraction not of water soluble substances, % , no more	0.07