Leuco Sulphur Green 7 Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
5-(4-Hydroxyanilino)-8-(4-methylanilino)-lnaphthalenesulfonic acidin the presence of Copper sulfate monohydrate with Sodium polysulfide ethanol solution heating, reflux 50 hours, then add the Sodium nitrite, again boiling 6 hours, steamed out ethanol, in 50 ~ 60 ℃ blowing air make precipitation. This indophenolis by 8-(P-toluidino)naphthalene-1-sulfonic acidand where did 4-Aminophenol with Sodium hypochlorite oxidation of mixture, then use Sodium hydrosulfide reduction and have to (BIOS 1155, – 12)
Properties and Applications
green.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Moderate
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Severe
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|
ISO
|
3
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4-5
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4
|
|
|
4
|
2-3
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Leuco Sulphur Green 7 Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
