140114-63-2 - Names and Identifiers
140114-63-2 - Introduction
Pigment Red 238 is an organic pigment, also known as solution red, with the chemical name 2-hydroxy-6-amino-9-phenyl-3H-pyrrole [3,4-b] benzopyridin-3-one. The following is an introduction to the nature, use, preparation and safety information of pigment red 238:
Nature:
Pigment Red 238 is a red crystalline powder, insoluble in water, but soluble in organic solvents such as methanol, acetone and dimethylformamide. It shows good thermal stability and light resistance in organic solvents.
Use:
Pigment Red 238 is mainly used as a dye and pigment additive. It can be used for coloring materials such as plastics, coatings, inks and paper, and can bring bright red to the product. In addition, pigment red 238 can also be used for dyeing chemical glass, indicator and integrated printing.
Preparation Method:
pigment red 238 preparation method is more complex, including multi-step reaction. The main synthetic route is through the condensation reaction of diazone (diazonaphthoquinone) to obtain the target product.
Safety Information:
Pigment red 238 is relatively safe under normal use conditions, but the following matters still need to be paid attention:
1. avoid inhalation of dust or direct contact with skin and eyes, should wear appropriate protective measures, such as wear protective glasses and gloves.
2. in case of accidental contact, rinse the affected parts with clean water in time and seek medical treatment if necessary.
3. in the process of storage and use, should be away from the fire and oxidant, to avoid the production of combustible gas and steam.
4. Avoid mixing with other chemical substances to avoid adverse chemical reactions.
5. in the waste disposal, need to comply with the relevant local laws and regulations.
Last Update：2024-04-09 20:52:54