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Pigment Blue 12

Catalog Number DYE-PIG-0300
CAS Number 1325-77-5
Synonyms Permanent Peacock Blue R Toner
Molecular Weight 426.4
Molecular Formula C25H27Cl2N2+
CI Number C.I.42130
Color brilliant blue.
Lightfastness Good
Main Molecular Structure triarylmethane
Preparation Method 2,5-Dichlorobenzaldehyde and N-ethyl-2-methylbenzenamine condensation, and will product oxidation, reoccupy phosphorus molybdenum acid lake change.
Properties Soluble in hot water for green blue, soluble in ethanol for blue. In concentrated sulfuric acid for yellow, green precipitation after dilution. Pigment solution to join sodium hydroxide have yellow orange precipitation.
Soap Micelle Bleeding Serious

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