Molecular Formula:C18H11NO2,C19H13NO2
Molecular Weight: 273.29,287.31
CAS Registry Number:8003-22-3
Manufacturing Methods :
the dye:
(a) 2-Methylquinoline and Phthalic anhydride in 200 ºC in the presence of Zinc chloride condensation;
(b) 2-Methylquinoline and Diethyl phthalate in the 100 ºC were hot.
(c) 3 - (2 - quinolin - ylmethylidene) - 2 - benzo [c] furanone and Sodium ethoxide in 240 ~ 250 ºC were hot.
Late dye: 2-Methylquinoline and 2,6-Dimethylquinoline Phthalic anhydride mixture and in 190 ~ 220 ºC were hot.
Properties and Applications: brilliant green yellow. Insoluble in water, slightly soluble in alcohol (yellow), linseed oil, mineral oil, oleic acid, paraffin wax, stearic acid, turpentine, soluble in acetone, Chloroform, benzene and toluene. In concentrated sulfuric acid for yellow brown, dilution after yellow floc precipitation. Used for alcohol soluble paint, polyethylene, polycarbonate, polyamide and acrylic acid resin, color cosmetics.
Zibo Hongwei is a pioneer biochem company producing enzymes for textile and textile auxiliaries just like textile cellualse enzyme, bio polishing enzyme, stone washing enzyme, softener flakes, softener pearls, softener beads, direct dyes, reactive dyes, sulphur black, suphur dyes wetting agent, fixing agent, synthetic thickener for reactive dyes etc.
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