Direct Brown 25
- CAS No.
- Chemical Name:Direct Brown 25
- CBNumber:CB09702961
- Molecular Formula:
- Formula Weight:0
- MOL File:Mol file
- Symbol(GHS)
- Signal word
- Hazard statements
- Precautionary statements
Direct Brown 25 Chemical Properties,Usage,Production
- Preparation 4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, and C.I. Basic Brown (C.I. 21000) coupled.
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Properties and Applications
brown to red light brown. Soluble in water for yellow brown to olive brown, slightly soluble in ethanol, acetone, soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for purple to blue-black, diluted is shallow brown; In nitric acid of for olive completely dissolved. The dye solution to join strong hydrochloric acid with olives brown precipitation; Add thick sodium hydroxide solution have yellow brown to orange brown precipitation.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3 3-4 3 2 2-3 AATCC 4 2 1-2 2-3 3
Direct Brown 25 Preparation Products And Raw materials
Raw materials
Preparation Products
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Direct Brown 25Related Search:
- disodium 3-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-m-tolyl]azo]-o-tolyl]azo]naphthalene-1,5-disulphonate C.I. Direct Brown 29 disodium 2'-[4-[[1-hydroxy-7-(phenylamino)-3-sulphonato-2-naphthyl]azo]phenyl]-6-methyl[2,6'-bibenzothiazole]-7-sulphonate C.I. Direct brown 26 Direct brown 33 (C.I. 35520) Direct Brown 250 trisodium 5-[[4'-[[4-[(4-amino-7-sulphonato-1-naphthyl)azo]-6-sulphonato-1-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate C.I. Direct Brown 34 DIRECT BROWN B
- C.I.Direct Brown 25:C.I.36030
- Direct Brown 25
