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Unfortunately, we are not currently accepting orders for Northern Ireland.
We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.
AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE
Crystal Violet, also known as Gentian Violet is a dark green powder/crystals. It is commonly used as a histological stain in the Gram method for demonstrating bacteria
Assay (on anhydrous basis): 96.0 % - 100.5%
Assay (as is): > 88%
Description: Dark Green Crystals/Powder
Lambda max.: 589 – 594 nm
Ratio of absorbances: 0.98 – 1.20
Loss on Drying 105 °C/1hr: < 7.5 %
Residue on Ignition: < 1.5%
Visual Transition Interval: From pH 0.0 (yellow) - pH 2.0 (violet)
Lead (Pb): 0.003% maximum
Zinc (Zn): 0.050% maximum
Alcohol-insoluble substances: < 1.0
Hazard Class: 9
Packing Group: 3
Hazard Phrases: Harmful if swallowed. Causes serious eye damage. May cause cancer
Prec Phrases: Obtain special instructions before use. Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or concerned: Get medical advice/attention. Dispose of contents/container to
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