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Molecular formula: Na2HPO4.nH2O (n=0,12)
Molecular weight: 358.0
Standard executed: HG/T2965-2000(Industrial Grade)
HG2920-2000(Food Grade)
CAS Number: 7758-79-4
Properties:
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℃
Uses:
Used as a fire-preventio agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, etc.
Packing and storage: In 25kg net bags, store at a cool ,dry and well ventilated place.
Guaranteed Technical Specifications:
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No.
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Specifications
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Na2HPO4
(Anhydrous)
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Na2HPO4 .12H2O (Duohydrate)
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Industrial Grade
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Food
Grade
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Industrial Grade
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Food
Grade
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1
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Main contents %≥
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98.0
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98.0
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98.0
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98.0
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2
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Phosphorus pentoxide,as P2O5
|
49.0
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49.0
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19.2
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19.2
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3
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PH of 1% water solution
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8.5-10.0
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8.5-10.0
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8.8-9.2
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8.8-9.2
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4
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Chloride(as Cl)max%
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|
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0.05
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0.014
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5
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Sulfate, as SO4 %≤
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|
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0.7
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0.25
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6
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Heavy metals, as Pb %≤
|
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0.001
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0.001
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7
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Arsenic, as As %≤
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0.0003
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0.005
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0.0003
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8
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Fluoride, as F %≤
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0.005
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0.05
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0.005
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9
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Water insoluble %≤
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0.10
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0.10
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0.05
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0.05
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