... zinc SaltsPropertieswhite or yellowish fine amorphous powder, smell-less, tasteless. The proportion is 4.42-4.45, does not dissolve in ... , can dissolve inthe diluted acid and the sodium hydroxide.Quality Standardconform to the chemical trade standard of the People's Republic of China HG ... 040.05Moisture, ≤2.53.5Sulfate(SO4 ),% ≤0.600.80Fineness through the 75um mesh,≥95.094.0Cadmium(Cd),≤0.10 sell zinc ...