Direct brown 33 (C.I. 35520)
Direct brown 33 (C.I. 35520) Property
- EPA Substance Registry System C.I. Direct Brown 33 (1324-87-4)
- Symbol(GHS)
- Signal word
- Hazard statements
- Precautionary statements
Direct brown 33 (C.I. 35520) Chemical Properties,Usage,Production
- Preparation 4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, and then and phenol coupling, product to diazo, and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? diazo, and Benzene-1,3-diamine coupled to a product matches
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Properties and Applications
dark red light brown. Soluble in water for the opacity of the purple brown, and adequate soluble in ethanol, acetone and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for blue-ray in purple to red light navy, dilute for purple after brown; In nitric acid completely dissolved in for red light gray; In strong hydrochloric acid in completely dissolved not for red light gray. The dye solution to join strong hydrochloric acid with brown precipitation; Join rare hydrochloric acid for orange brown; Add 10% sodium hydroxide solution for yellow light brown.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3-4 3 2 2 2-3 AATCC 5 4 3 4 3-4
Direct brown 33 (C.I. 35520) Preparation Products And Raw materials
Raw materials
Preparation Products
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1324-87-4, Direct brown 33 (C.I. 35520)Related 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 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 Direct Brown 25
- 1324-87-4
- Direct Brown 33
- C.I.Direct Brown 33:C.I.35520
- C.I. Direct brown 33
- 2,7-Naphthalenedisulfonic acid, 5-((diamino((8-hydroxy-6-sulfo-2-naphthalenyl)azo)phenyl)azo)-4-hydroxy-3-((4'-((4-hydroxyphenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, trisodium salt
- Direct brown 33 (C.I. 35520)
