Toluene diisocyanate manufacturer Knowledge Tetraethylammonium bromide Tetraethylammonium bromide

Tetraethylammonium bromide Tetraethylammonium bromide

Tetraethylammonium bromide structural formula

Structural formula

Business number 01GT
Molecular formula C8H20BrN
Molecular weight 210.16
label

TEA bromide,

N,N,N-triethylacetolammonium bromide,

Tetraethylammonium bromide,

Tetraethylamine bromide,

Ethyl bromide,

Brothyl ammonium,

Bromuredetetraethylammoniummuredetetraethylammonium,

Etambro,

(C2H5)4N(Br),

catalyst

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.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/21002

author:

Previous article
Next article
Contact Us

Contact us

+86 - 152 2121 6908

Online consultation: QQ交谈

E-mail: sales@newtopchem.com

Working hours: Monday to Friday, 9:00-17:30, closed on holidays
Follow wechat
Scan wechat and follow us

Scan wechat and follow us

Follow Weibo
Back to top
Home
E-mail
Products
Search