Di Sodium Phosphate Dodecahydrate - Industry Application Phosphat - China Yeyuan Chemical Raw Material Supplier - PVC - PV...

Di Sodium Phosphate Dodecahydrate

Molecular formula: Na2HPO4-12H2O

Molecular weight: 358.14

CAS Number: 10039-32-4

Other Name: Disodium Monohydrogen Phosphate

National Standard:HG-T2965-2009

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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	Assay %≥	97.0	98
2	Phosphorus pentoxide, %≥	/	19.2
3	PH (10g/L solution)	8.8-9.2	8.8-9.2
4	Sulfate, as SO₄ %≤	0.7	0.5
5	Heavy metals, as Pb %≤	/	0.003
6	Arsenic, as As %≤	0.005	0.008
7	Fluoride, as F %≤	0.05	0.01
8	Water insoluble %≤	0.05	0.01
9	Cl %≤	/	0.2
10	Pb %≤	/	0.001
11	Fe %≤	0.05	0.01
12	Loss on drying %≤	/	61