tetraethylammonium bromide tetraethylammonium bromide

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:71-91-0

mdl number:mfcd00011825

einecs number:200-769-4

rtecs number:bs5950000

brn number:3563430

pubchem id:none

physical property data

1. properties: white crystal, easy to absorb moisture. 2. density (g/ml, 25/4℃): 1.397

3. relative vapor density (g/ml, air=1): uncertain

4. melting point (ºc): 285 (dec.)(lit.)

5. boiling point (ºc, normal pressure): uncertain

6. boiling point (ºc, 5.2 kpa): uncertain

7. refractive index: 1.442-1.444

8. flash point (ºc): uncertain

9. specific rotation (º): uncertain

10. autoignition point or ignition temperature (ºc): uncertain

11. vapor pressure (kpa, 25 ºc): uncertain

12. saturated vapor pressure ( kpa, 60 ºc): 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. lower explosion limit (%, v/v): uncertain

19. solubility: easily soluble in water, ethanol, chloroform and acetone, slightly soluble in benzene.

toxicological data

acute toxicity: rat intraperitoneal ld50: 108 mg/kg; rat subcutaneous injection ld50: 200 mg/kg; rat intravenous ld50: 63 mg/kg; mouse oral ld50: >2 mg/kg;

              mouse abdominal ld50: 50 mg/kg; mouse intravenous ld50: 14200 ug/kg; dog intravenous ld50: 55 mg/kg; rabbit intravenous ld50: 72 mg/kg;

ecological data

none

molecular structure data

none

compute chemical data

1. reference value for hydrophobic parameter calculation (xlogp): none

2. number of hydrogen bond donors: 0

3. number of hydrogen bond acceptors: 1

4. number of rotatable chemical bonds: 4

5. number of tautomers: none

6. topological molecule polar surface area 0

7. number of heavy atoms: 10

8. surface charge: 0

9. complexity: 47.5

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: 2

properties and stability

easily soluble in water and ethanol.

storage method

this product should be stored in a sealed, cool, dry and dark place.

synthesis method

in a 250ml three-necked flask equipped with a reflux condenser and a stirrer, add 7ml (5g, 0.05mol) triethylamine, 4ml (5.5g, 0.05mol) bromoethane and 20ml, 1,2-dichloroethane. or benzene. reflux and heat for 1.5 to 2 hours. after cooling the reaction solution, crystals are precipitated, filtered, washed twice with a small amount of 1,2-dichloroethane or benzene, dried and stored in a desiccator. yield 8~10g.

purpose

for ion pair chromatography. tests gold, iridium, osmium, palladium, rhodium and ruthenium. polarographic analysis. used as a phase transfer catalyst in organic synthesis.