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Acid Green 20

Name:C.I.Acid Green 20,C.I.20495

Molecular Structure: Double azo class

C.I.Acid Green 20,C.I.20495,CAS 5850-39-5,586.51,C22H16N6Na2O7S2,Weak Acid Green B,Acid Green A,Acid Green B

C.I.Acid Green 20,C.I.20495,CAS 5850-39-5,586.51,C22H16N6Na2O7S2,Weak Acid Green B,Acid Green A,Acid Green B

Molecular Formula:C22H16N6Na2O7S2

Molecular Weight: 586.51

CAS Registry Number:5850-39-5

Manufacturing Methods : 4-Nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, and its product under alkaline conditions and then with the coupling diazotized aniline, and reducing the nitro group with sodiumn.

Properties and Applications: dark blue light green green light to dark. Dark green light to black powder. Soluble in water and soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. Dyes in 10% of sodium hydroxide solution for purple solution; The strong sulfuric acid for blue-ray green, diluted into blue, precipitation; In nitric acid solution for brown. The water solution is dark blue light green, add thick sodium hydroxide solution to purple. This product is suitable for the wool, silk, wool blended fabric, polyamide fiber of dyeing and printing, also suitable for leather and paper color.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 3-4 3 1 4-5 2 1 4 1
AATCC 3 2-3 2-3 3 2-3 2-3 3 3

List of Suppliers:

Weak Acid Green B,Acid Green A,Acid Green B

Hangzhou Xiasha Hengsheng (Sunshine) Chemicals Co.,Ltd.

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Atul Acid Dark Green B( Atul Limited )

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Best Acid Dark Green A ( Oriental Giant Dyes and Chemical Ind Corp )

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Fabracid Green S-JB ( Fabricolor Inc. )

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Indacid Dark Green B( Indokem Ltd )

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Leadacid Dark Green B( Leadertech Colors Inc. )

Lecotan Green D ( Jinwoong Industrial Co Ltd )

Lerui Acid Green B ( Rosi Chemical Co Ltd )

Libacid Green ( Liberty Exports Ltd )

Multacid Green B( Multicrom SA )

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Orcoacid Dark Green A Conc. ( Organic Dyestuffs Corp )

Ostacid Black EHG 200( SPOLCHEMIE )

Penetrating Dark Green B Pdr (Classic Dyestuffs Inc)

Ricoamide Dark Green B ( Rite Industries Inc. )

Rifa Acid Dark Green A(Rifa Industrial Co Ltd)

Rifa Leather Dark Green BL (Rifa Industrial Co Ltd)

Simacid Dark Green (Simpsons (UK) Ltd)

Sinolon Dark Green B( Shangyu Big Sunshine Chemical Industry Co Ltd )

Triacid Dark Green B (Chemische Fabriek Triade BV)

Vicoacid Dark Green[B](Victory Colour Chem Industries)

Vilmacid Green ( Vilmax SA )

 


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