Specification:
Appearance:colorless or light yellow transparent liquid
Active acid %:48.0-52.0
Chloride (as Cl-)%:2.0(or1.0) min
pH value (1%solution):2.0 max
Fe (as Fe3+) (ppm):20
Density (20℃)…
Item
food grade
First grade
Eligibility grade
Total phosphate salt ﹪﹥
68.0
67.0
65.0
Unactive phosphate salt ﹤
7.5
8.0
10.0
Insoluble in water ﹪
0.05
0.10
10.0
…
Tannic Acid 81% Min. ( Industry Grade )
H.S. Code: 32019090 CAS No.:1401-55-4
Propertics : Light yellow to light brown powder
Tannin Acid :81% min.
loss on drying: 9% max.
Total Color2.0
Wa…
Tungsten disulfide WS2 is a compound of tungsten and sulfide, black powder, insoluble in water and organic solvents, reacting with neither acid nor alkali besides the mixture of thick nitric acid and …
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