1. Appearance: White Crystals

2. Specification:
Purity% ≥ 99.6; 99.4
Suiphate group % ≤ 0.08; 0.10
Ignition (850oC) % ≤ 0.08; 0.10
Heavy metal % ≤ 0.001; 0.002
Iron content % ≤ 0.0012; 0.002
Chlorides % ≤ 0.003; 0.004
Calcium % ≤ 0.0012; /

3. Package: 25kg net in plastic waven bags lined with plastic bags

4. Uses:
Metallurgy industry: As precipitating and resolving agent for rare earth metal, etc.
Organic Synthesis: For 2133 rein, ures form aldehyde powder etc.
Light industry: Polishing of DA LI stone, removing rust bleachingproductssof leather, wood and aluminium ect.
Printing Industry: Dyeing agent
Medicine Industry: For making tetracydine, HCl ect.
Others: As laboratory agent, solvents activato and basic materialsfor chemical industry.