【Properties】Colorless or white glossy flaky crystals or white crystalline powder, with a slightly special smell and slightly bitter taste.
【Appearance】White flake crystal or powder
【PH】5.95 (1% aqueous solution)
【Loss on drying】≤0.05%
【Heavy metal (calculated as Pb)】≤0.001%
【Scope of application】It is used for biochemical research and nutritional supplements, and can be used as food and feed additives.
【Storage】Store in a cool, dry, clean and shading environment. It is strictly forbidden to mix with toxic and harmful substances to avoid pollution.
|Appearance||White crystals or crystalline powder||Conform|
|Specific optical rotation||+23.0°~+24.5°||Conform|
|State of solution||≧98%||98.5|
|Arsenic salt||Not more than 1ppm||0.1ppm|
|Organic volatile impurities||Meets the requirements||Conforms|
|Loss on drying||≦0.4%||0.15%|
|Residue on ignition||≦0.1%||0.07%|
|Conclusion:||The above specifications meet the requirements of USP36|