Methyl Benzensulfonate Methyl Benzensulfonate
Structural formula
Business number | 01QR |
---|---|
Molecular formula | C7H8O3S |
Molecular weight | 172.2 |
label |
aromatic sulfur compounds |
Numbering system
CAS number:80-18-2
MDL number:MFCD00014737
EINECS number:201-256-8
RTECS number:DB7151000
BRN number:908448
PubChem ID:None
Physical property data
1. Properties: colorless liquid
2. Density (g/mL, 25/4℃): 1.2730
3. Relative vapor density (g/mL, air =1): Uncertain
4. Melting point (ºC): -70℃
5. Boiling point (ºC, normal pressure): 150℃
6 . Boiling point (ºC, 5.2kPa): Uncertain
7. Refractive index: 1.5151
8. Flash point (ºC): 86°C
9 . Specific rotation (º): Uncertain
10. Autoignition point or ignition temperature (ºC): Uncertain
11. Vapor pressure (kPa, 25ºC): Uncertain
12. Saturated vapor pressure (kPa, 60ºC): Uncertain
13. Heat of combustion (KJ/mol): Uncertain
14. Critical temperature (ºC): Uncertain
15. Critical pressure (KPa): Uncertain
16. Log value of oil-water (octanol/water) partition coefficient: Uncertain
17. Explosion upper limit (%, V/V): Uncertain
18. Explosion lower limit (%, V/V): Uncertain
19. Solubility : Easily soluble in alcohol, ether and chloroform, slightly soluble in water. Decomposes in water, acid, alkali and ethanol
Toxicological data
1. Acute toxicity
Rat caliber LD50: 740mg/kg;
Mouse caliber LD50: 250mg/kg;
2. Others Dose toxicity data
Rat caliber TDL0: 2400mg/kg/30D-C;
Ecological data
None yet
Molecular structure data
5. Molecular property data:
1. Molar refractive index: 41.93
2. Molar volume (cm3/mol): 137.5
3. Isotonic specific volume (90.2K): 343.6
4. Surface tension (dyne/cm): 38.9
5. Polarizability (10-24cm3): 16.62
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 1.2
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 3
4. Number of rotatable chemical bonds: 2
5. Number of tautomers: none
6. Topological molecule polar surface area 51.8
7. Number of heavy atoms: 11
8. Surface charge: 0
9. Complexity: 196
10. Number of isotope atoms: 0
11.��Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
Extremely poisonous! Its vapor can irritate eyes, mucous membranes, and skin, and can cause sensitization and dermatitis. Direct contact is strictly prohibited. Production equipment should be sealed to prevent leakage. Operators should wear protective equipment. If splashed on skin, rinse with plenty of water.
Storage method
This product should be sealed and stored in a cool, dark place.
Packed in iron drums. Store and transport according to regulations for flammable and extremely poisonous items.
Synthesis method
Using benzene and chlorosulfonic acid as raw materials, benzene sulfonyl chloride is first prepared, and then esterified with methanol in the presence of sodium hydroxide Produced by chemical reaction.
Purpose
Used as alkylating agent and auxiliary raw material for the production of dye brilliant green FFB.