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Pigment Violet 36

Catalog Number DYE-PIG-0318
CAS Number 5462-29-3
Structure
Molecular Weight 393.31
Molecular Formula C18H10Cl2O2S2
CI Number C.I.73385
Color red light purple.
Lightfastness Well
Main Molecular Structure Thioindigo
Preparation Method 2-(4-Chloro-2-methylphenylthio)acetic acid with Chlorosulfonic acid cyclization, oxidation; The intermediate is by 3-Chlorotoluene using sulfonyl chloride route (BIOS 983, 34) or by 4-Chloro-2-methylaniline use disulphide method (FIAT 1313,2,296) and have to.
Properties Soluble in Xylene for blue light red, with weak yellow fluorescence. In concentrated sulfuric acid for brilliant green, red precipitation, after dilution in alkaline insurance powder solution for yellow; In the acidic insurance powder solution colorless.
PVC Migration Bleeding
Soap Micelle Bleeding No

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