C.I. Reactive Blue 220 - Names and Identifiers
C.I. Reactive Blue 220 - Introduction
Reactive blue BB, also known as methylene blue, is an organic dye. The following is an introduction to the nature, use, preparation and safety information of the active blue BB:
Nature:
Reactive blue BB is a blue powder crystal, soluble in water, methanol and ethanol. It is red in acidic media and blue in alkaline media. It has good stability and strong dyeing ability.
Use:
Reactive blue BB is mainly used for dyeing and printing in the textile industry. It can form covalent bonds with the surface of the fiber, so it has good fastness. It is often used in hair dyes, marking agents, inks and color developers and other fields.
Preparation Method:
The preparation of activated blue BB can be obtained by reacting methylene blue with sulfuric acid or nitric acid. The process requires attention to the correct ratio of chemicals and control of reaction conditions.
Safety Information:
The use of reactive blue BB should comply with the relevant safety practices. It may cause irritation or irritation when in contact with human skin and direct contact should be avoided. At the same time, it also has a certain toxicity, in the use and storage of the need for appropriate protective measures to avoid inhalation or ingestion. When using or disposing of this chemical, care should be taken to follow correct safety procedures and keep it away from ignition and combustibles.
Last Update：2024-04-09 21:11:58