2,4-Dinitrophenylsulfonic acid
Structural formula
| Business number | 020D |
|---|---|
| Molecular formula | C6H4N2O7S |
| Molecular weight | 248.17 |
| label |
2,4-Dinitrophenylsulfonic acid hydrate, 2,4-Dinitrobenzenesulfonic acid hydrate, (O2N)2C6H3SO3H |
Numbering system
CAS number:89-02-1
MDL number:MFCD00066017
EINECS number:201-876-9
RTECS number:DB6500000
BRN number:None
PubChem number:24879598
Physical property data
1. Characteristics: This product contains Crystallization of three molecules of water
2. Density ( g/mL,25/4℃) : Undetermined
3. Relative vapor density (g/mL,AIR=1): Undetermined
4. Melting point ( ºC): 106-108℃; melting point of anhydrous matter130℃
5. Boiling point ( ºC,Normal pressure): Undetermined
6. Boiling point ( ºC,5.2kPa): Undetermined
7. Refractive Index: Undetermined
8. Flashpoint (ºC): Undetermined
9. Specific optical rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC): Not OK
11. Vapor pressure (kPa,25ºC): Undetermined
12. Saturation vapor pressure (kPa,60ºC): Undetermined 12、Uncertain number of stereocenters: 0
13 , Determine the number of stereocenters of chemical bonds: 0
14 , Uncertain number of chemical bond stereocenters: 0
15 , Number of covalent bond units: 1
Properties and stability
None
Storage method
This product should be sealed and stored in a cool, dry place away from light.
Synthesis method
By2,4-Dinitrochlorobenzene is obtained by sulfonation. Will1100LAdd water into the sulfonation pot and heat to50℃, add with rapid stirring119kgLight magnesium oxide. Stir for a while and then add 750kg750kgmolten2,4-Dinitrochlorobenzene, continue heating to65℃4hAdd within462kgSodium bisulfite solution (formulated4.5-5Nconcentration). After the reaction is completed, cool to 55℃. Add hydrochloric acid to acidify, then add 35kgRefined salt, cool to20℃, let it stand and filter to get the product. Products are generally sold in 2,4-Forms of sodium dinitrobenzene sulfonate.
Purpose
This product is a dye intermediate.
family: Arial”>molten2,4-Dinitrochlorobenzene, continue to heat to 65℃, in4hAdd within462kgSodium bisulfite solution (made into 4.5-5Nconcentration). After the reaction is completed, cool to 55℃. Add hydrochloric acid to acidify, then add 35kgRefined salt, cool to20℃, let it stand and filter to get the product. Products are generally sold in 2,4-Forms of sodium dinitrobenzene sulfonate.
Purpose
This product is a dye intermediate.