dye|World dye variety

Name:C.I.Direct Black 38,C.I.30235

Molecular Structure: trisazo class

C.I.Direct Black 38,C.I.30235,CAS 1937-37-7,781.73,C34H25N9Na2O7S2,Direct Black BN,Direct Black BRN,Direct Black BX,Direct Black EX,Direct Black RN

Molecular Formula:C₃₄H₂₅N₉Na₂O₇S₂

Molecular Weight: 781.73

CAS Registry Number:1937-37-7

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid group of adjacent a coupling, product again with Benzene-1,3-diamine coupling.

Properties and Applications: black. Palm black powder. Soluble in water for green light black, solubility 40 g/l (85 ℃), and adequate soluble in alcohol for green light blue-black, right amount soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid is a deep red in blue, diluted Purple dark reddish brown for to red light black precipitation; In nitric acid solution for yellow brown (not completely); In strong hydrochloric acid for dark red light black solution (don’t). The dye solution to join strong hydrochloric acid for Purple dark reddish brown, precipitation; Concentrated sodium hydroxide solution is generated gray light blue precipitaten. Cellulose fiber of dyeing, the dye absorption rate as well, in 80 ℃ temperature when the biggest affinity. Can discharge. Used for cotton, viscose, silk, polyamide fiber and its blending fabric, leather, wood, biological and plastic color, also used as the raw material of black ink.

List of Suppliers:

Direct Black BN,Direct Black BRN,Direct Black BX,Direct Black EX,Direct Black RN

JinZhou Dyestuffs Plant Hebei

Apollo Direct Deep Black EX ( Taiheung Corp )

Atul Direct Black E( Atul Limited )

Atul Leather Black DE ( Atul Limited )

Bitamine Direct Black EG( Bharat Texdyes Industries )

Bitamine Direct Black ER( Bharat Texdyes Industries )

Black E-Greener & Redder (Monarch Dyestuffs Industries)

Black EX (Sinochem Liaoning Import & Export Corporation)

Black EX(Hangzhou Dikai Chemical Co Ltd)

Concorde Direct Black EX ( I-HWA Industrial Corp )

Concorde Leather Black EXR( I-HWA Industrial Corp )

Condirec Black CM(Concord Commerce Company)

Cotton Black EW( ellenic Dyeworks SA )

Direct Black(Chemiequip Ltd)

direct Black( Chemi-Dyestuffs Industries (Pvt) Ltd )

Direct Black A (Colorom SA)

Direct Black BN(EX)(Sinochem Ningbo Imp & Exp Corp)

Direct Black CCB EX Conc (Classic Dyestuffs Inc)

Direct Black E ( Albion Dyestuffs Ltd )

Direct Black E ( KCA Ltd )

Direct Black E ( Multicrom SA )

Direct Black E (Amar Impex)

Direct Black ER (Chemische Fabriek Triade BV)

Direct Black EX(Sinochem Tianjin Imp Exp Corp)

Direct Black EX(Sinochem Hebei Imp & Exp Corp)

Direct Black EX (Nanjing Chemicals Import and Export Corp)

Direct Black EX (Fenchem Enterprises Ltd)

Direct Black EX( Day-Glo Color Corp. )

Direct Black Ex( Shandong Leling Huahong Dyes & Chemicals Co Ltd )

Direct Black EX(Shandong Qing Shun Chemical Co., Ltd.)

Direct Black GE ( Golden Dyes Corpn (India) Pvt Ltd )

Direct Black META( PT Polkrik Chemicals Co )

Direct Black RW-NB (Classic Dyestuffs Inc)

Dycosdirect Black EX (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)

Dycosdirect Leather Black ER (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)

Eniacel Black CN ( Enia Industries Quimicas S.A. )

Enianil Black CN ( Enia Industries Quimicas S.A. )

Melodye Black GX-NB 200%(Classic Dyestuffs Inc)

Multicuer Black E ( Multicrom SA )

Pamanil Black E-38( Pyosa Pigments )

Ravi Direct Black E( Ravi Chem Dye )

Rifa Direct Black ED(Rifa Industrial Co Ltd)

Rifa Direct Black EX(Rifa Industrial Co Ltd)

Ritadirect Black META ( ritas Mensucat Boylari ve )

Simrect Black 24870 (Simpsons (UK) Ltd)

Sinardirect Black EX ( Sinar Syno Kimia )

Sinardirect Black GX( Sinar Syno Kimia )

Vopsider Black DA(Colorom SA)