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HomeProduct name listVat Violet 10

Vat Violet 10

  • CAS NO.:128-64-3
  • Empirical Formula: C34H16O2
  • Molecular Weight: 456.49
  • MDL number: MFCD00021274
  • EINECS: 204-901-1
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-03-19 15:37:51
Vat Violet 10 Structural

What is Vat Violet 10?

Preparation

commonly known as Isoviolanthrone.(a) 7H-benzo[de]anthracen-7-one?chlorinated, with Potassium hydroxide of Etanol solution treatment; (b) 7H-benzo[de]anthracen-7-one?and Potassium hydroxide of Etanol solution in Xylene, Chlorobenzene or kerosene in heating; (c) 3-Chloro-7H-benzo[de]anthracen-7-one?the anthrone into corresponding sulfide or selenide and then use alkali treatment.

Synthesis

Isoviolanthrone , Formerly prepared from 3- halobenzanthrone by alcoholic potash melt. Isomer-free isoviolanthrone is obtained by an alcoholic potash melt of 3,3'-dibenzanthronyl sulfide or by the one-pot method .
Dichlorination of isoviolanthrone with sulfuryl chloride, or alternatively bromination in chlorosulfonic acid, affords brilliant violet vat dyes and pigments.
Synthesis_128-64-3

Purification Methods

Dissolve isoviolanthrone in 98% H2SO4 and precipitate it by adding water to reduce the acid concentration to about 90%. It sublimes in vacuo to give dark green-violet needles [Parkyns & Ubblehode J Chem Soc 4188 1960]. [Beilstein 7 I 465, 7 II 815, 7 III 4538, 7 IV 2747.]

Properties and Applications

blue light purple. Soluble in 2 – Chlorophenol, Xylene to red, fluorescence, slightly soluble in Acetone, Chloroform, Pyridine and Toluene, insoluble in Etanol. In concentrated sulfuric acid for SAP green, purple precipitation after dilution, In the basic insurance powder solution for dark red light blue, in acid insurance powder solution for wine.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 3 5 5-6 4 4-5

Properties of Vat Violet 10

Density  1.487±0.06 g/cm3(Predicted)
solubility  slightly sol. in Acetone,Toluene,Chloroform
form  powder to crystal
Colour Index  60000
color  Gray to Dark purple to Black
CAS DataBase Reference 128-64-3(CAS DataBase Reference)
NIST Chemistry Reference Isodibenzanthrone(128-64-3)
EPA Substance Registry System Benzo[rst]phenanthro[10,1,2-cde]pentaphene-9,18-dione (128-64-3)

Safety information for Vat Violet 10

Computed Descriptors for Vat Violet 10

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