2,4-Dinitrophenylsulfonic acid

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

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.