Preparation of Solvent yellow 98
Solvent yellow 98 is used for all kinds of plastic coloring. With beautiful fluorescence, light fastness, high temperature resistance.
It is made by 4 nitro 1,8 naphthalic anhydride, 2 aminothiophenol and octadecyl amine. Firstly, condensating 4 nitro 1,8 naphthalic anhydride with o aminothiophenol to obtain sulfide compounds, and then condensating with octadecyl amine to get naphthalic imide intermediate, and finally diazotizating free amino and closed loop in the presence of copper sulfate, the product can be obtained by treatment of liquid caustic soda. After filtration, drying and grinding, we can get the Solvent yellow.
TongShun Chemical Co, Ltd, set up in 2008, is a modern enterprise manufacturing solvent dyes, fluorescent pigments dyes and dyestuff intermediates. Currently, our products are exported to dozens of countries abroad. Our solvent dyes and pigments are widely used in plastic, fiber masterbatch, paint, printing ink, etc.; most of our products comply with relative EU legislation in regard to heavy metal and aromatic amine. Quality and innovation are what we guarantee to achieve customers’satisfactions.
TongShun Chemical Co.,Ltd
Tel: 0086 25 52397805
Fax: 0086 25 68650010
Email: [email protected] dye.com
Web: www.solvent dye.com