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Pigment Violet 20

Catalog Number DYE-PIG-0324
CAS Number 6486-92-6
Structure
Synonyms Pyrolux Maroon Lake
Molecular Weight 492.43
Molecular Formula C20H12O11S2
CI Number C.I.58225
Color brilliant red light purple
Lightfastness wELL
Main Molecular Structure anthraquinones
Oleic Acid Excellent
Preparation Method 2-Bromo-1,4-dihydroxyanthracene-9,10-dione and phenol of potassium carbonate in the presence of condensation, and fuming sulfuric acid sulfonation, sodium hydrogen sulfite and then decomposed borate, then the product was converted to calcium.
PVC Migration No
Soap Micelle Bleeding No

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