dye|World dye variety

Name:C.I.Vat Blue 20,C.I.59800

Molecular Structure: violanthrone

C.I.Vat Blue 20,C.I.59800,CAS 116-71-2,456.49,C34H16O2,Vat Navy Blue BO,Cibanon Blue BOA-Ol

Molecular Formula:C₃₄H₁₆O₂

Molecular Weight: 456.49

CAS Registry Number:116-71-2

Manufacturing Methods :  commonly known as Violanthrone. (a) Anthracen-9-ol and glycerol in the presence of sulfuric acid condensation, the product 7H-benzo[de]anthracen-7-one with Potassium hydroxide alkali fusion; (b) 4,4′-Dibenzoyl-1’1′-binaphtyl  with Aluminium chloride heating; (c) 7H-benzo[de]anthracen-7-one with Potassium hydroxide in glucose and high boiling point inert solvent) in the presence of alkali solution.

Properties and Applications: dark blue purple red to purplish blue. Blue black powder. Etanol and insoluble in water, soluble in 1, 2, 3, 4 – Tetrahydronaphthalene and Xylene in red solution (with red fluorescence), slightly soluble in Acetone, Chloroform, 2 – Chlorophenol, Pyridine and Toluene. Alkaline reduction leuco for dark purple; Acid reduction leuco for wine. In concentrated sulfuric acid for purple black, dilution after purple black precipitation. Used for cotton fiber dyeing, poor levelness. Widely used in dark blue fabric and polyester/cotton khaki dyeing. The leuco used for hosiery dyeing, in yarn-dyed mainly applied to dyeing yarn. Used for cotton fabric direct printing. Can dye viscose, silk and d/cotton goods. Can also be processed into organic pigment.

List of Suppliers:

Vat Navy Blue BO

YABANG INVESTMENT HOLDING GROUP CO.,LTD

Xuzhou Kedah Fine Chemicals Limited

Shanghai Hua Yuan Industry & Commerce General Company?

Akavat Dark Blue BO Pst. (Aakash Chemicals & Dyestuffs Inc)

Anthramar Dark Blue BO (Amar Dye Chem Ltd)

Anthramar Dark Blue BOR (Amar Dye Chem Ltd)

Blue BO (Hangzhou Dikai Chemical Co Ltd)

Blue VB (Fenchem Enterprises Ltd)

Carvat Dark Blue BO ( Carey Industries Inc. )

Cibanon Blue BOA-Ol ( Ciba Specialty Chemicals Inc )

Dark Blue 2R( JK Promotions )

Dark Blue BO (Sinochem Liaoning Import & Export Corporation)

Dark Blue OD ( Coral )

Dycosthren Dark Blue(Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)

Hebeithrene Dark Blue BO(Sinochem Hebei Imp & Exp Corp)

Indanthrene Blue Green Pdr ( Standard Dyes )

Indanthrene Dark Blue BOA ( Standard Dyes )

lndonon Dark Blue BO ( Indokem Ltd )

Intravat Dark Blue BO (Yorkshire Group pic)

]Kenanthrene Navy BOA ( Albion Colours Ltd)

Mikethrene Dark Blue BO ( Mitsui Toatsu Chemicals Ltd )

Mikethrene Dark Blue BOA ( Mitsui Toatsu Chemicals Ltd )

Navinon Dark Blue BO ( Indian Dyestuffs Industries Ltd )

Navinon Dark Blue BO ( Sunbelt Corporation )

Orcovat Dark Blue BO ( Organic Dyestuffs Corp )

Ostanthren Dark Blue BOA (SBU Pigments and Dyes)

Patcovat Dark Blue BOA ( BF Goodrich Specialty Chemicals )

Permavat Dark Blue BOA ( Standard Dyes )

Roycevat Dark Blue BO Pst ( Passaic Color & Chemical Co. )

Sandothrene Liquid Dark Blue NBO ( Clariant GmbH )

Solanthrene Dark Blue BOA MP( Standard Dyes )

Solanthrene Dark Blue FBA NEO( Standard Dyes )

Trianthrene Dark Blue BOA(Chemische Fabriek Triade BV)

Vat BLue BO (Sinochem Ningbo Imp & Exp Corp)

Vat Blue BO (Sinochem Jiangsu I/E Corp.)

Vat Blue BO( Standard Dyes )

Vat Dark Blue (Brighten Colorchem BV)

Vat Dark Blue BO Paste ( Global Colors Inc. )

Vat Dark Blue BO (Sinochem Jiangsu Wuxi Imp & Exp Corp)

Vat Dark Blue BO( Chang Zhou Jing Long Chemical Factory )

Vat Dark Blue BO (Fenchem Enterprises Ltd)

Xuzhou Vat Blue 20( Xuzhou Vat Chemical Co Ltd )

Youhaothrene Dark Blue BO (Sinochem Tianjin Imp Exp Corp)