维生素E醋酸酯
详细说明
Vitamin E Acetate (7695-91-2)
Formula: C₃₁H₅₂O₃
M.W.: 472.8
Appearance: Clear, colorless to slightly yellow or greenish-yellow, viscous, oily liquid
Solubility: Practically insoluble in water, freely soluble in acetone, in ethanol and vegetable oils.
Specifications: EP9/USP41/BP2018
Assay: 98.0% min
Identification A,B,C: Correspond
Related Substances(GC):
Impurity A: 0.5% max
Impurity B: 1.5% max
Impurity C(Tocopherol): 0.5% max
Sum of impurity D and E: 1.0% max
Any other impurity, for each impurity: 0.25% max
Total impurity: 2.5% max
Optical Rotation: -0.01° to +0.01°
Acid Value: 2.0mg KOH/g max
Sulphated Ash: 0.10% max
Heavy Metals: 10ppm max
Lead: 2ppm max
Arsenic: 1ppm max
Refractive(20℃): 1.494-1.498
Absorbance:
42.0-45.0 max. At about 284nm
7.5-9.0 min. At about 254nm
Density(20℃): 0.952-0.966 g/ml
Residual Solvents: Meet the requirement
Package: in 190kg drum
Quality Guarantee Period: 3 years
Distributor:
Company Name | Address |
ECOCHEM GROUP CO., LIMITED | Dongmanzhong Road, Sino - Singapore Eco - City, Tianjin, China 300467 |
Telephone number
+86 22 2528 8888 | |
Fax number
+86 22 6622 2078 | |
Email | info@ecochem - group.com |
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