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Disodium Phosphate
Molecular formula:Na2HPO4·12H2O
Molecular weight:358.14
CAS No.:7558-79-4
Property:White or colorless, crystalline free flowing solid, efflorescence in air, soluble in water easily. Density is 1.52, and melting point is 35.1℃.
Usage:

Tech grade Used as fire-extinguishing agent for fabric, woods, paper; as soft water agent for boilers; as food additive, and so on.

Food grade Used as boiler water softener; treatment of leather and fabrics to increase weight; flame retardant for fabrics, wood and paper in dyeing; culture medium for biochemical treatment; raw material for production of sodium pyrophosphate and other phosphates.
Packing:Net each in 25kg plastic woven bag, lined with PE bag.
Specification:


ITEM

SPECIFICATION

TECH GRADE

FOOD GRADE

Main content

≥98.0 %

≥98.0%

PH of 1% solution

8.8-9.2

9.0-9.4

Sulfate, as SO4

≤1.2 %

≤1.2%

Chloride, as CI

≤0.05 %

≤0.02%

Fluoride, as F

≤0.1 %

≤0.005%

Heavy metal, As Pb

 -

≤0.001%

Arsenic, as As

 -

≤0.0003%

Water insoluble

≤0.10 %

≤0.20%