USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
introduction:
vitamin e acetate is a highly efficient and stable natural vitamin e by derivation of d - alpha tocopherol and acetic anhydride . and the effect of the nutritional fortification, miscibility with grease.
it has the effects of antioxidant and double nutritional fortification and also miscibility with oils.
specification:
tem |
specifications |
results |
appearance |
slightly yellow, clear, viscous oil |
qualified |
assay by g.c |
98.0—102.0% |
99.2% |
identity |
corresponds |
qualified |
infrared spectrum |
meets ep requirement |
qualified |
option rotation |
-0.01°~ +0.01° |
qualified |
density(20°c) |
0.952—0.966g/ml |
0.955g/ml |
refractive index(20°c) |
1.494—1.498 |
1.496 |
related substances |
impurities a, c: for each impurity ≤ 0.5% impurity b ≤ 1.5% sum of impurity d+e ≤ 1.0% any other impurities: meet ep requirements total impurities: ≤ 2.5% |
qualified |
absorbance in ethanol: at about 284nm (max) at about 254nm (min) |
42.0—45.0 7.5—9.0 |
44.0 8.8 |
acidity |
max.1.0ml of 0.1 n naoh |
0.04 ml |
sulphated ashes |
≤0.1% |
0.03% |
heavy metals |
≤10ppm |
<5ppm |
lead |
≤2ppm |
0.04ppm |
arsenic |
≤3ppm |
<1ppm |
free tocopheryl |
≤1.0% |
0.35% |
organic volatile impurities |
meets usp requirements |
qualified |
conclusion: the product complies with usp/bp/ep/fcc standard |
application:
as fortification and antioxidant of oils and fats, and for liquid pharmaceutical preparations such as soft capsules.