Disodium Phosphate - Guizhou Sky-phos Chemicals Co., Ltd.

Properties: White crystal form, relative density 1.52, melt at 35 ℃, and losed 5 crystalline water; at 100 ℃ it will turn to be anhydrous; Anhydrous material is a powder material, weathering in air, easily soluble in water, but insoluble in alcohol, it's water solution is slightly alkaline.
Uses: As a fire-retardant agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, and etc.
Packing and storage: 25kg, 50kg net bags, store at a clean, cool, dry and well ventilated place, avoid moisture.
Standard executed: HG/T2965-2000

Item	Na₂HPO₄ · 12H ₂O
Item	Industrial Grade	Food Grade
Assay, %≥	98.0	98.0
P₂O₅ , % ≥	19.2	19.2
pH, (1% water solution)	8.8-9.2	8.8-9.2
Chloride (as Cl), % ≤	--	0.014
Sulphate, %≤	0.70	0.25
Fluoride (as F), %≤	--	0.005
Heavy metal (Pb), %≤	--	0.001
Arsenic (As), %≤	--	0.0003
Water insoluble, %≤	0.10	0.05

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