ve / gmp certified vitamin e acetate, bulk vitamin e oil
name: vitamin e oil
other name: vitamin e acetate, tocopheryl, tocopherol
appearance: slightly yellow, clear, viscous oil
standard: ep6/usp32
cas: 7695-91-2
results of analysis
items |
standards |
results |
appearance |
slightly yellow, clear, viscous oil |
qualified |
solubility |
practically insoluble in water, freely soluble in acetone, in ethanol and in fatty oils |
qualified |
assay by g.c |
98%~101.0% |
98.7% |
identity |
corresponds |
qualified |
related substances
|
impurities a, c; for each impurity,≤0.5% impurities b:≤1.5% any other impurity: for each impurity,≤0.25% total:≤2.5% total impurity d and e:≤1.0% |
a=0.08%,c=0.32% b=0.44% <0.25% 0.91% 0.01% |
optical rotation |
-0.01º~+0.01º |
0.0º |
refractive index (20°c) |
1.494-1.498 |
1.497 |
absorbance in ethanol |
||
at about 284nm(max.) |
42.0-45.0 |
43.4 |
at about 254nm(min.) |
7.5-9.0 |
8.1 |
acid value |
≤2.0 |
0.22 |
sulphated ashes |
≤0.1% |
0.04% |
heavy metals |
≤10ppm |
<10ppm |
lead |
≤2ppm |
1ppm |
arsenic |
≤3ppm |
<1ppm |
free tocopherol |
max. 1.0% |
0.70% |
density |
0.952~0.966g/ml |
0.959g/ml |
organic volatile impurities |
meets usp requirements |
qualified |
( actual tested results :comply with ep6/usp32 standard ) |
storage: ve / vitamin e acetate bulk vitamin e oil kept in a light-proof, well-colsed,dry and cool place
ve / gmp certified vitamin e acetate, bulk vitamin e oil
name: vitamin e oil
other name: vitamin e acetate, tocopheryl, tocopherol
appearance: slightly yellow, clear, viscous oil
standard: ep6/usp32
cas: 7695-91-2
results of analysis
items |
standards |
results |
appearance |
slightly yellow, clear, viscous oil |
qualified |
solubility |
practically insoluble in water, freely soluble in acetone, in ethanol and in fatty oils |
qualified |
assay by g.c |
98%~101.0% |
98.7% |
identity |
corresponds |
qualified |
related substances
|
impurities a, c; for each impurity,≤0.5% impurities b:≤1.5% any other impurity: for each impurity,≤0.25% total:≤2.5% total impurity d and e:≤1.0% |
a=0.08%,c=0.32% b=0.44% <0.25% 0.91% 0.01% |
optical rotation |
-0.01º~+0.01º |
0.0º |
refractive index (20°c) |
1.494-1.498 |
1.497 |
absorbance in ethanol |
||
at about 284nm(max.) |
42.0-45.0 |
43.4 |
at about 254nm(min.) |
7.5-9.0 |
8.1 |
acid value |
≤2.0 |
0.22 |
sulphated ashes |
≤0.1% |
0.04% |
heavy metals |
≤10ppm |
<10ppm |
lead |
≤2ppm |
1ppm |
arsenic |
≤3ppm |
<1ppm |
free tocopherol |
max. 1.0% |
0.70% |
density |
0.952~0.966g/ml |
0.959g/ml |
organic volatile impurities |
meets usp requirements |
qualified |
( actual tested results :comply with ep6/usp32 standard ) |
storage: ve / vitamin e acetate bulk vitamin e oil kept in a light-proof, well-colsed,dry and cool place