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Crystal Violet

Crystal Violet Suppliers list
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Products Intro: Product Name:Crystal Violet
Purity:99% Package:100g,500g,1KG,10KG,100KG
Company Name: Dalian Richfortune Chemicals Co., Ltd
Tel: 86-411-84820922, 84821539
Products Intro:
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: CAS:548-62-9
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Products Intro: Product Name:Crystal Violet
Company Name: Chemwill Asia Co.,Ltd.
Tel: 86-21-51086038
Products Intro: CAS:548-62-9
Purity:0.99 Package:5KG;1KG;25KG PRICE quotation Remarks:Factory stock, quality assurance, price concessions

Lastest Price from Crystal Violet manufacturers

  • Crystal Violet
  • US $1.00 / KG
  • 2019-04-01
  • CAS:548-62-9
  • Min. Order: 1G
  • Purity: 99%
  • Supply Ability: 100KG
Crystal Violet Chemical Properties
Melting point 205 °C (dec.)(lit.)
Boiling point 560.86°C (rough estimate)
density 1.19 g/cm3 (20℃)
refractive index 1.6010 (estimate)
Fp 40 °C
storage temp. Store at RT.
solubility water: soluble50g/L at 27°C
pka9.4(at 25℃)
Colour Index 42555
form Solid
color S. No.: 785
PH2.5-3.5 (10g/l, H2O, 20℃)
PH Range0.8(yellow)-2.6(blue/violet)
Water Solubility 16 g/L (25 ºC)
Merck 14,4395
BRN 4077708
Stability:Stable. Incompatible with strong oxidizing agents, strong acids. Light-sensitive. Combustible.
Biological ApplicationsDetecting microorganisms; treating atopic dermatitis,dermatological diseases,28,skin wounds,lesions,hemorrhoids,1,multiple myeloma,Non-Hodgkin’s lymphoma,breast cancer,neurodegenerative diseases,onychomycosis; wound dressing
Major ApplicationPhotoresists, lithographic printing plate, printed circuit board, inks, hair dyes, shampoo, drug screening method, bone cement preparation method, microorganisms, hemorrhoids, antifungal, antibacterial, antimalarial agent, dental application
CAS DataBase Reference548-62-9(CAS DataBase Reference)
EPA Substance Registry SystemMethanaminium, N-[4-[bis[4-(dimethylamino) phenyl]methylene]-2,5-cyclohexadien- 1-ylidene]-N-methyl-, chloride(548-62-9)
Safety Information
Hazard Codes Xn,N,T,C
Risk Statements 52/53-50/53-45-41-22-40-34-10-36/37/38-23/25-51/53-68
Safety Statements 61-60-53-45-46-36/37/39-26-39-36/37-16-22
RIDADR UN 3077 9/PG 3
WGK Germany 3
RTECS BO9000000
HazardClass 9
PackingGroup III
HS Code 32041300
Hazardous Substances Data548-62-9(Hazardous Substances Data)
ToxicityLD50 orally in mice, rats: 1.2, 1.0 g/kg (Hodge)
MSDS Information
Methyl violet English
ACROS English
SigmaAldrich English
ALFA English
Crystal Violet Usage And Synthesis
Physical and Chemical PropertiesIt is also known as "purple", "methyl violet", "gentian violet." It belongs to triphenylmethane type alkaline dyes. Scientific name:"hexamethyl chloride rose aniline." It appears as dark green powder with metallic luster. It is soluble in water, alcohol and chloroform, but insoluble in ether. Its solubility in water is 1.68% and its solubility in 95% ethanol is 13.87%. However, the solubility of its iodide in two solvents is only 0.035% and 1.78% respectively. Both its aqueous solution and alcohol solution are purple. The structural formula of its chloride is:
ApplicationIt can be used as the dyes of silk, paper and acrylic as well as biological stains. It can be used for manufacturing paints and printing inks. It can also used as an acid-alkaline indicator with coloring range being from pH 0.5 (green) to 2.0 (blue), and developing reagent for colorimetric assays.
It can form a colored chelate with thallium in the hydrobromic acid medium, thus it can be used as thallium sensitivity reagent. It can also be used for the determination of other metal ions such as zinc, antimony, titanium, cadmium, tungsten, gold, mercury and so on. It can also be used as biological stains and non-aqueous titration acid-base indicator. In addition, it can also be used as antiseptic for inhibiting Staphylococcus aureus, Streptococcus and some fungi. Its 1% aqueous solution is commonly known as "purple syrup" for the prevention and treatment of skin and mucous membrane infections. Its enteric-coated tablets can be used as orally anti-pinworm medicine.
Chemical Propertiesdark green powder or crystals
DescriptionAnti-infective (topical). Has been used as anthelmintic (Nematodes), as indicator for copper salts.
UsesAs dye for wood, silk, paper; in inks; as biological stain.
PreparationIt is manufactured through using N, N-dimethylaniline as raw materials, followed by condensation, addition, chlorination and other reactions. Alternatively, it can be synthesized through the reaction between Michler ketone and N, N-dimethylaniline reaction in the presence of phosphorus oxychloride, followed by azeotropic reaction with hydrochloric acid. Recrystallization in hot water will generate compound containing nine crystal water molecules.
Brand nameGenapax (Key); Gvs (Savage).
General DescriptionIt belongs to triamino-triphenylmethane synthetic dyes; alkaline. It is an important dye used in bacterial Gram stain. The mixed reagent of crystal violet chloride and iodine is known as gentian violet.
Air & Water ReactionsInsoluble in water.
DescriptionCrystal Violet is light sensitive. May react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release gaseous hydrogen.
Fire HazardFlash point data for Crystal Violet are not available, however, Crystal Violet is probably combustible.
Clinical UseGentian violet is variously known as hexamethyl-p-rosanilinechloride, crystal violet, methyl violet, and methylrosanilinechloride. It occurs as a green powder or greenflakes with a metallic sheen. The compound is soluble inwater (1:35) and alcohol (1:10) but insoluble in nonpolar organicsolvents. Gentian violet is available in vaginal suppositoriesfor the treatment of yeast infections. It is also used asa 1% to 3% solution for the treatment of ringworm and yeastinfections. Gentian violet has also been used orally as an anthelminticfor strongyloidiasis (threadworm) and oxyuriasis.
Safety ProfilePoison by ingestion, intravenous, and intraperitoneal routes, An experimental teratogen. Other experimental reproductive effects. A human sktn irritant. Human mutation data reported. Questionable carcinogen with experimental carcinogenic data. When heated to decomposition it emits very toxic fumes of NO, and Cl-.
Purification MethodsCrystallise the dye from water (20mL/g), the crystals being separated from the chilled solution by centrifugation, then wash them with chilled EtOH (solubility is 1g in 10 mL of hot EtOH) and diethyl ether and dry under vacuum. It is soluble in CHCl3 but insoluble in Et2O. The carbinol is precipitated from an aqueous solution of the dye-hydrochloride, using excess NaOH, then dissolve in HCl and recrystallise it from water as the chloride [UV and kinetics: Turgeon & La Mer J Am Chem Soc 74 5988 1952]. The carbinol base has m 195o (needles from EtOH). The diphthalate (blue and turns red in H2O) crystallises from H2O, m 153-154o(dec at 185-187o)[Chamberlain & Dull J Am Chem Soc 50 3089 1928]. [Beilstein 13 H 233, 13 IV 2284.]
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