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Pigment Blue 3

Catalog Number DYE-PIG-0306
CAS Number 1325-79-7
Molecular Weight 391.96
Molecular Formula C25H28ClN2
CI Number C.I.42140:1
Color brilliant blue.
Lightfastness Good
Main Molecular Structure triarylmethane
Oleic Acid Well
Preparation Method 2-Chlorobenzaldehyde andN-ethyl-2-methylbenzenamine condensation, then product oxidation, reoccupy phosphorus molybdenum acid lake change.
Properties Soluble in hot water for the green, soluble in ethanol. In concentrated sulfuric acid for the red light yellow, yellow green for diluted. Its aqueous solution to join sodium hydroxide have brown light yellow precipitation.
Soap Micelle Bleeding Bleeding

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