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C.I. Direct Brown 18

C.I. Direct Brown 18 Structure
C.I. Direct Brown 18 structure
CAS No.
8007-34-9
Chemical Name:
C.I. Direct Brown 18
Synonyms
Direct Brown 18;C.I. Direct Brown 18;C.I.Direct Brown 18:C.I.20220
CBNumber:
CB34773541
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
Mol file
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C.I. Direct Brown 18 Chemical Properties,Uses,Production

Preparation

6-Aminonaphthalene-1-sulfonic acid diazo, and Resorcinol coupling, C.I. Direct Yellow 59 (C.I. 49000) to diazo, and the generation of single accidentally coupled nitrogen compounds.

Properties and Applications

brown. For yellow brown is soluble in water, soluble in ethanol for orange brown. The strong sulfuric acid for orange brown, for yellow brown after diluted. The dye solution to join strong hydrochloric acid have yellow brown precipitation; Add thick sodium hydroxide solution for red light orange brown.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 3 2 1 1

C.I. Direct Brown 18 Preparation Products And Raw materials

Raw materials

6-Amino-1-naphthalenesulfonic acid Resorcinol PRIMULINE

Preparation Products

8007-34-9(C.I. Direct Brown 18)Related Search:

Direct Brown 191 DIRECT BROWN 2 Direct Brown 179 Direct Brown 190 Direct Brown 185
Direct Brown 186 sodium 2,6-bis[(2,4-diaminophenyl)azo]toluene-4-sulphonate 5-[[4'-[[3-[(3-Carboxy-2-hydroxy-5-sulfophenyl)azo]-2,6-dihydroxyphenyl]azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid trisodium salt 2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[[2-hydroxy-5-(aminosulfonyl)phenyl]azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid sodium salt

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C.I. Direct Brown 18 Direct Brown 18 C.I.Direct Brown 18:C.I.20220 8007-34-9