Sodium salt

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DISODIUM PHOSPHATE (DSP)

Guaranteed Technical Specifications

Chemical formula: Na2HPO4.12H2O
Molecular weight: 358.0
Standard executed: GB6008-85
Throughput: 10000t/a



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 1.63, melting point at 34.6℃

Uses

Used as a fire-prevention agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, etc.

Packing and storage

Plastic-woven sack, net weight 25kg, 50kg or 1000kg. Store at a ventilated, dry place.

  • Other Parameters

序號 No
指標名稱 Specifications
工業級 Industrial Grade
食品級 Food Grade
1  
主含量(以Na2HPO4.12H2O計)%≥ Main contents
97.0
98.0
2
PH(1%水溶液) PH of 1% solution
9.0-9.4
9.0-9.4
3
氯化物(以cl計)% ≤ Chloride, as cl
0.05
0.014
4
硫酸鹽(以S04計)  %≤ Sulfate, as SO4
0.7
0.25
5
氟化物(以F計)%≤ Fluoride, as F
0.05
0.005  
6
重金屬(以Pb計)%≤ Heavy metals, as Pb
0.001
7
砷(以As計)%≤ Arsenic, as As
0.0003
8
水不溶物%≤ Water insoluble
0.10
0.10

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