C.I. Sulphur Red 4 (8CI) - Names and Identifiers
C.I. Sulphur Red 4 (8CI) - Upstream Downstream Industry
C.I. Sulphur Red 4 (8CI) - Introduction
C. I. Sulphur Red 4(8CI) is a sulfur Red dye with the chemical name C. I. sülfürrhodamine G.
Its appearance is orange-red crystalline powder. It is soluble in water and slightly soluble in alcohol and chloroform. The C. I. Sulphur Red 4(8CI) appears Red under acidic conditions and yellow under alkaline conditions. This dye has good light fastness and wash fastness.
C. I. Sulphur Red 4(8CI) is mainly used for dyeing textiles, such as cotton, linen, silk and nylon. It can also be used for dyeing wool and leather.
The preparation of C. I. Sulphur Red 4(8CI) is mainly through the reaction of benzene sulfonic acid and naphthylamine, and through oxidation-reduction reaction to obtain the final product.
This preparation process requires attention to operating conditions and the use of appropriate safety equipment and measures.
Regarding safety, C. I. Sulphur Red 4(8CI) is considered relatively safe under general conditions of use. However, like any chemical substance, it should be used correctly and in accordance with the relevant safety procedures. During handling and storage, avoid direct contact with skin and eyes, and keep away from ignition sources.
Last Update：2024-04-09 21:54:55