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Description
Catalogue Number	101408
Synonyms	Hexamethylenepararosaniline chloride, Gentian violet (C.I. 42555), Hexamethyl-p-rosanilinium, Methyl violet 10 B

Physicochemical Information
Density	1.19 g/cm3 (20 °C)
Melting Point	215 °C
pH value	2.5 – 3.5 (10 g/l, H₂O, 20 °C)
Bulk density	220 – 400 kg/m3
Solubility	10 g/l

Toxicological Information
LD 50 oral	LD50 Rat 420 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H302: Harmful if swallowed. H318: Causes serious eye damage. H351: Suspected of causing cancer. H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statement(s)	P202: Do not handle until all safety precautions have been read and understood. P273: Avoid release to the environment. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection. P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P313: IF exposed or concerned: Get medical advice/ attention.
Signal Word	Danger
RTECS	BO9000000
Storage class	10 – 13 Other liquids and solids
WGK	WGK 3 highly hazardous to water
Disposal	9 Carcinogenic compounds and flammable compounds labelled “Highly toxic” or “Toxic”: container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).

Safety Information
Categories of danger	harmful, carcinogenic, irritant, dangerous for the environment

Storage and Shipping Information
Storage	Store at +2°C to +30°C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 3077 , 9, III
Declaration (transport by air) IATA-DGR	UN 3077 , 9, III
Declaration (transport by sea) IMDG-Code	UN 3077 , 9, III, Marine Pollutant: P

Specifications
Dye content (spectrophotometrically; calc. on dried substance)	≥ 90.0 %
Identity (UV/VIS-Spectrum)	passes test
Absorbance characteristics (Ratio, E (λmax - 15 nm)/E (λmax + 15 nm))	0.98 – 1.20
Absorption maximum λ_max. (water)	589 – 594 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.002 g/l; water)	2000 – 2450
TLC-Test	passes test
Michler`s ketone	< 0.10 %
Loss on drying (110 °C, 4 h)	≤ 7.5 %
Suitability as indicator (ACS)	passes test
Suitability as indicator (Reag. Ph Eur)	passes test

Merck 101408 0025 Crystal Violet (C.i. 42555) indicator Acs 25 GR.