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Chemical formula: Na2HPO4·12H2O
CAS NO.: 7558-79-4
Ref. Standard: HG/T2965-1997(Industrial grade); HG2920-2000(Food grade)
production capacity:1500 t/m
Properties: White or colorless crystal, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density is 1.63, melting point is 34.6°C
Technical Specifications:
No. | Index | Industrial Grade | Food grade |
1 | Main content %≥ | 98.0 | 98.0 |
2 | P2O5 %≥ | 19.2 | 19.4 |
3 | pH of 1% water solution | 8.8-9.2 | 9.0-9.4 |
4 | Chloride, as Cl % ≤ | 0.05 | 0.014 |
5 | Sulfate, as SO4 % ≤ | 0.7 | 0.25 |
6 | Heavy metal, as Pb % ≤ | - | 0.001 |
7 | Arsenic, as As % ≤ | 0.005 | 0.0003 |
8 | Fluoride, as F % ≤ | 0.05 | 0.002 |
9 | Water insoluble % ≤ | 0.10 | 0.05 |
Applications: 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, and etc.
Packaging: packed in plastic woven bag with PE lining, 25kgs or 50kgs/bag. Stored in ventilated and dry