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Direct Orange 5
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Direct Orange 5 ??
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aniline diazo, and 7-(4-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling, and then diazo, and 5-Oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acidcoupling.Properties and Applications
yellow orange. Moderate soluble in water for palm light orange, slightly soluble in alcohol. The strong sulfuric acid for orange red, to orange diluted. The dye solution to join strong hydrochloric acid have brown light orange precipitation; Add thick sodium hydroxide solution for orange brown. Can be used for cotton dyeing, good levelness. Neutral and alkaline white is very good. Hard to sensitive.| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 4 | 3 | 1-2 | 2 | ||
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Benzoic acid, 5-[[4'-[(2,6-diamino-3-methyl-5-sulfophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxy-3-methyl-, disodium salt
DIRECT ORANGE 61
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, reaction products with 3-[(4-amino-3-methoxyphenyl)azo]benzenesulfonic acid monosodium salt
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[2-[2-methoxy-5-methyl-4-[2-(4-sulfophenyl)diazenyl]phenyl]-2-oxidodiazenyl]-, sodium salt (1:4)
Direct orange 60
C.I. Direct Orange 63
DIRECT ORANGE 6
C.I. Direct Orange 71
1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt