China Cosmetic Raw Materials Ascorbyl Glucoside / AA2g Powder CAS 129499-78-1, Find details about China Ascorbyl Glucoside, AA2g from Cosmetic Raw Materials Ascorbyl Glucoside / AA2g Powder CAS 129499-78-1
Items | Standards | Results |
Appearance | White to cream powder | Complies |
pH | 2.0~2.5 | 2.4 |
Melting Point | 158°C~163°C | 161°C |
Optical rotation | +186.0o ~ +188.0o | +186.8o |
Loss on drying | ≤1.0% | 0.11% |
Residue on ignition | ≤0.2% | 0.05% |
Free ascorbic acid | ≤0.1% | 0% |
Free glucose | ≤0.1% | 0% |
Heavy metals(as Pb) | ≤10ppm | Complies |
Arsenic(AS2O3) | ≤1ppm | Complies |
Assay | ≥98% | 99.2% |