Acid Brown 402 - Names and Identifiers
Acid Brown 402 - Introduction
Acid Brown 402 is an acid dye, commonly known as Acid Red 2G. Its chemical structure contains acid groups, so it is obviously acidic in aqueous solution.
Acid brown 402 is mainly used in the dyeing and printing process of cotton, linen, silk and other fibers in the textile industry. It can react with the fiber ion exchange, make the dyeing agent and the fiber firmly combine, increase the color fastness of the fiber, and have a bright dyeing effect.
A common method for preparing acid brown 402 is to react disulfonyl chloride and N-methyl-2-naphthylamine to obtain an intermediate, and then condense with naphthylamine to generate acid brown 402.
When using Acid Brown 402, pay attention to the following safety information:
1. acid brown 402 is toxic substances, should avoid direct contact with skin, mouth and eyes.
2. use should wear protective gloves, goggles and masks, to ensure good ventilation conditions.
3. acid brown 402 is easy to damp, humidity is easy to moisture caking, should be stored in a dry, ventilated place.
4. acid brown 402 can not be mixed with strong oxidants and strong alkali and other substances to avoid dangerous substances or reactions.
5. Use and store away from fire and heat sources to avoid fire or explosion hazards.
Please note that the preparation method and safety information for Acid Brown 402 are based on general conditions. Specific operations require reference to relevant chemical literature and safety information, and compliance with relevant safety practices in a laboratory environment.
Last Update：2024-04-09 20:49:11