Di Sodium Phosphate Anhydrous - Industry Application Phosphat - China Yeyuan Chemical Raw Material Supplier - PVC - PVC Ad...

Di Sodium Phosphate Anhydrous

Molecular formula: Na2HPO4

Molecular weight: 141.96

CAS Number: 7558-79-4

Other Name: Disodium Monohydrogen Phosphate

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Performance and Usage

White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.52 g/cm3, melting point at 35℃

Used as a fire-preventio agent for fabric, timber, and paper, also as water softening agent for boiler,

Quality Specification

No	Specifications	National Standard	Standard
1	Main contents %≥	97.0	97.5 Min
2	Phosphorus pentoxide, %≥	49.0	49 Min
3	PH of 1% water solution	8.5-10.0	8.5-10.0
4	Sulfate, as SO₄ %≤	0.7	0.2
5	Heavy metals, as Pb %≤	/	0.005
6	Arsenic, as As %≤	0.005	0.003
7	Fluoride, as F %≤	0.05	0.01
8	Water insoluble %≤	0.2	0.1
9	Cl %≤	0.05	0.01
10	Pb %≤	/	0.01
11	Fe %≤	/	0.01
12	Loss on drying %≤	/	5.0