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25 Kilogram |
Negotiable |
Crystal Violet PYOKTANIN BLUE ALCOZINE VIOLET 6BN
Quality Standard for USP
Items |
Specification |
Results |
Solubility |
Pass test |
Pass test |
Identification |
Positive |
Positive |
Lead(Pb),percent |
≤0.003 |
0.002 |
Ethanol Insoluble,percent |
≤1.0 |
0.5 |
Loss on drying,percent |
≤ 7.5 |
6.6 |
Sulfated ash,percent |
≤ 1.5 |
1.45 |
Arsenic |
≤3ppm |
3ppm |
Zinc,percent |
≤ 0.05 |
0.035 |
Chromatographity,percent |
≤ 1.0 |
0.76 |
Assay,percent |
96-100.5 |
97.4 |
Quality Standard for BP
Items |
Specification |
Results |
Identification |
Description |
Positive |
Solubility |
Description |
Pass test |
Insolubility in alcohol |
Description |
0.45% |
Sulfated ash |
≤3.0% |
1.84% |
Loss on drying |
≤8% |
7.51% |
Heavy metals |
20ppm |
20ppm |
Arsenic |
4ppm |
4ppm |
Zinc |
Description |
Conform |
Assay |
≤96% |
97.16% |
PH indicator, pH 0.5 ~ 2.0 (blue) (green), nonaqueous solution titration indicator of photometric determination of arsenic gold iridium silicon boron tantalum technetium antimony, and thallium creatures such as dyeing, often used as fixed and stain of nuclear chromosome Use gentian violet chromosomes can be dyed purple (with the effect of acetate magenta, acetate magenta is a red tint to chromosome
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