Molecular Formula: Na3PO4nH2O (n=0, n=1, n=12)
Molecular weight: 163.94(n=0), 181.96(n=1), 380.18(n=12)
Executive Standard: GB 25565-2010 (Food Grade) HG/T 2517-2009 (Technical Grade)

Properties:
White or colorless crystal, weathered in the air easily. It is soluble in water, organic solvent insoluble. Aqueous solution is alkaline. The relative density is 1.62 and melting point at 73.4° C.

Uses:
As water softener, boiler detergent, metal antirust, textile mercerizing enhancer for industrial uses; As improver, emulsifying agent, nutritional supplement and flour alkaline agent for food uses.

Packing:
25kg plastic woven bag, store at dry and ventilated place.
Transport: By train, truck and vessel, etc.

Specification	Technical Grade		Food Grade			Reagent Grade
	Dodecahydrate	Anhydrous	Dodecahydrate		Anhydrous	Specification	Reagent garde (AR)
Main content %≥	98.0	98.0	97.0		97.0	(Na3po4.12H2O)%≥	98.0
P2O5 %≥	18.3	39.5	18.3		18.3	Clarity	Qualified
Sodium oxide as Na2O	15.5-19	36-40	15.5-19		15.5-19	Free alkali (NaOH) %≤	1.5
Sulphate (as SO42-) %≤	0.5	---	0.5		0.5	Disodium salt (Na2HPO4.12H2O%≤	0.5
Heavy metals(as Pb) %≤	---	---	0.001		0.001
						Choride (CL) %≤	0.005
Lead(Pb) %≤	---	---	0.0004		0.0004
						Sulphate(SO4)%≤	0.01
Arsenic (as As) %≤	---	---	0.0003		0.0003	Nitrogen (N)%≤	0.002
Fluoride (F) %≤	---	0.10	0.005		0.005	Arsenice (AS)%≤	0.0003
Water insoluble %≤	0.10	0.10	0.20		0.20
						Iron (Fe) %≤	0.0005
PH of 10g/L water solution	---	---	11.5-12.5		11.5-12.5
Ignition loss ≤	---	---	45-57	45-57		Iron (Fe) %≤