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Pigment Blue 11

Catalog Number DYE-PIG-0301
CAS Number 71798-704
Structure
Synonyms Rubber Blue YD
Molecular Weight 458.04
Molecular Formula C29H32ClN3
CI Number C.I.44040:2
Color brilliant red light blue.
Lightfastness Good
Main Molecular Structure triarylmethane
Preparation Method (a) Bis (4-(dimethylamino) phenyl) methanol and N-Ethylnaphthalen-1-amine condensation, and make the product into N-nitroso derivatives, and oxidation, remove nitroso, reoccupy phosphomolybdic acid, phosphotungstic acid or phosphorus molybdenum acid lake change; (b) 4-(Dichloro(4-(dimethylamino)phenyl)methyl)-N,N-dimethylbenzenamine and N-Ethylnaphthalen-1-amine condensation, reoccupy phosphomolybdic acid, phosphotungstic acid or phosphorus molybdenum acid lake change.
Properties Soluble in hot water and ethanol for blue, slightly soluble in cold water is blue. In concentrated sulfuric acid for brown light yellow, dilute the bright green and blue. Pigment solution to join sodium hydroxide with brown floc precipitation.
Soap Micelle Bleeding Serious

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