4,4'-sulfonylbis(2-nitrophenol) - Names and Identifiers
4,4'-sulfonylbis(2-nitrophenol) - Physico-chemical Properties
Molecular Formula | C12H8N2O8S
|
Molar Mass | 340.27 |
Density | 1.715g/cm3 |
Boling Point | 546.2°C at 760 mmHg |
Flash Point | 284.1°C |
Vapor Presure | 1.53E-12mmHg at 25°C |
Refractive Index | 1.685 |
4,4'-sulfonylbis(2-nitrophenol) - Introduction
4,4 '-sulfonylbis(2-nitrophenol)(also known as 4,4'-sulfonylbis) is an organic compound. Its chemical formula is C12H8N2O8S.
The following is a description of the nature, use, preparation and safety information of 4,4 '-sulfonylbis(2-nitrophenol):
Nature:
-Appearance: 4,4 '-sulfonylbis(2-nitrophenol) is a light yellow to yellow crystal.
-Melting point: It has a higher melting point, about 250-252°C.
-Solubility: It is soluble in organic solvents (such as dimethyl sulfoxide and dichloromethane), but almost insoluble in water.
Use:
- 4,4 '-sulfonylbis(2-nitrophenol) is mainly used as a rubber and plastic additive to provide stability to heat and oxidation.
-It is also used in certain pigments and pigment pretreatment agents.
Preparation Method:
- 4,4 '-sulfonylbis(2-nitrophenol) is usually prepared by nitration. First, diphenyl sulfone is reacted with concentrated nitric acid to obtain a nitrated product. Then, the reaction mixture was neutralized with an alkaline solution to give 4,4 '-sulfonylbis(2-nitrophenol).
-During the preparation process, attention should be paid to controlling the reaction temperature and the degree of nitration to ensure the purity and yield of the product.
Safety Information:
- 4,4 '-sulfonylbis(2-nitrophenol) is toxic and irritating to the skin and eyes. Appropriate personal protective equipment, such as goggles, gloves and laboratory coats, should be worn during operation.
-It is also a potential carcinogen, should avoid inhalation of its dust or contact with its solution.
-During use and storage, avoid contact with strong oxidants, strong acids and other substances to prevent dangerous reactions.
Last Update:2024-04-10 22:29:15