Product description: Solvent Violet 31 Solvent Violet 31/Violet RR-B C .I .NO:Solvent Violet 31 CAS NO:70956-27-3 Molecular Formula:C14H8Cl2N2O2 Molecular Weight: 307.13 CAS Registry Number:70956-27-3 Manufacturing Methods : 1,4-Diamino-2,3-dichloroanthracene-9,10-dione in 1-Nitrobenzene using sulfuryl chloride chlorination. Properties and Applications:blue light purple. In concentrated sulfuric acid for shallow dark brown, dilution after purple List of Suppliers: Violet D Violet 3A Violet TR Violet RR-B Solvent Violet 31 Solvent Violet RR Violet RR Physical & Chemical Properties Product name Color Index no. Chemical type Color tone Melting point℃ Bulk density（g/ml/） Fastness Specification Concentration of coloring PS Dyes TiO2 Light fastness Heat fastness /% /% （℃/5min） Transparent Violet RR Solvent Violet 31 Anthraquinone Violet 291 0.357 0.05 1 7 300 Applications PS HIPS ABS PC RPVC PMMA SAN AS PA6 PET ★ ★ ★ ○ ★ ★ ★ ★ — △ ★ Suitable ○ Suitable with restrictions △ Not recommended -Not Test Note: The above technical data is only used for reference.The application, use and process of the products provided by our company, are not controlled by our company,we hope that the user should test the goods before mass use to verify whether Suitable for the process and use of your products. Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%) Melting point Stable ISO >7 310 Insoluble Product package : 25kgs/Pallets