Features Specifications:Sell D-Glucosamine Hcl, D-Glucosamine 2KCL  D-Glucosamine HCl: 1) Appearance: White crystalline powder 2) Assay (On dry basis): 98.0 ~ 102.0% 3) Specific rotation: 70 ~ 73o 4) PH value (2%, 25oC): 3.0 ~ 5.0 5) Loss on drying: 0.5% max. 6) Residue on ignition: 0.1% max. 7) Organic volatile impurities: meets the requirements 8) Sulfate: 0.24% max. 9) Heavy metals: 10ppm max. 10) Arsenic: 3ppm max. 11) Mesh size: 100% through 40 mesh 12) Bulk density: 0.7g/ml min. 13) Total aerobic microbial count: 500cfu/g max. 14) Yeast & mold: negative 15) E-Coli: negative 16) Salmonella: negative  Glucosamine sulfate potassium salt: 1) Appearance: white crystalline powder 2) Assay (on dry basis): 98.0 ~ 102.0% 3) Specific rotation: 50 ~ 52o 4) Loss on drying: 1.0% max. 5) Residue on ignition: 27.0 ~ 29.0%  6) Organic volatile impurities: meets the requirements  7) PH value (2%, 25oC): 3.0 ~ 5.0  8) Sulfate: 15.5 ~ 16.5% 9) Sodium: meets the requirements  10) Heavy metals: 10ppm max. 11) Arsenic: 3ppm max. 12) Mesh size: 100% through 40mesh  13) Bulk density: 0.7g/ml min. 14) Microbial limits: total aerobic microbial count: 500cfu/g max. 15) Yeast & mold: 100CFU/g max. 16) E-coil: negative  17) Salmonella: negative