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CRYSTAL VIOLET AR C.I.No.42555 (Confirms USP Specification) Crystal Violet is a component of Gram staining that allows one to recognize the difference between gram-positive and gram-negative bacteria with differential staining. Basic Violet 3, Gentian Violet, Hexamethylpararosaniline chloride, Methyl Violet 10B
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Specification
Overview
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Battery
General
Description
| Article No. | 03049 | Grade | AR |
| Purity | 96% | CAS No. | 548-62-9 |
| Molecular Formula | C25H30CIN3 | Molecular Weight | 407.99 |
| H.S. Code | 3204.9000 | Shelf Life | 60 Months |
Physical Properties
| Physical state at 20 °C | Solid | Colour | Dark green powder | ||||
| Odour | Slight characteristic odor | Melting point/ Freezing point [°C] | 173 °C | ||||
| Solubility in water [% weight] | Soluble in water | ||||||
Specifications
| Appearance | Dark green powder | Assay | 96 – 100.5% |
| Identification | To pass A, B & C tests | Water | Max 7.5% |
| Residue on ignition | Max 1.5% | Alcohol insoluble matter | Max 1% |
| Arsenic (As) | Max 0.001% | Lead (Pb) | Max 0.003% |
| Zinc (Zn) | Passes test | Chromatographic purity (by HPLC) | Passes test |
| Sensitivity as an indicator | Passes test | UV absorbance Ratio | 0.98 – 1.90 |
Safety Information and Hazard Symbols
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Symbol: GHS05, GHS07, GHS08, GHS09
Signal Word: Danger
UN No.: 3077
IMCO Class No.: 9
Packing Group: III
Hazardous Statement: H302-H318-H351-H410
Precaution Statement: P273-P280-P305 + P351 + P338-P501
Signal Word: Danger
UN No.: 3077
IMCO Class No.: 9
Packing Group: III
Hazardous Statement: H302-H318-H351-H410
Precaution Statement: P273-P280-P305 + P351 + P338-P501
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