Tetramethylammonium Bromide Tetramethylammonium 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:64-20-0

MDL number:MFCD00011626

EINECS number:200-581-2

RTECS number:BS7600000

BRN number:3620955

PubChem number:24888934

Physical property data

1. Properties: white crystal. Easy to absorb moisture

2. Density (g/mL, 25/4℃): 1.56

3. Relative vapor density (g/mL, air=1): Uncertain

3. p>

4. Melting point (ºC): >300

5. Boiling point (ºC, normal pressure): >360

6. Boiling point (ºC, 5.2kPa): Uncertain

7. Refractive index: Uncertain

8. Flash point (ºC): Uncertain

9. Specific rotation (º): Uncertain Determined

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. Lower explosion limit (%, V/V): Uncertain

19. Solubility: Easily soluble in water, slightly soluble in Anhydrous alcohol, insoluble in ether

Toxicological data

Acute toxicity: rat abdominal LD50: 24600 ug/kg; mouse intravenous LD50: 1800 ug/kg

Ecological data

None yet

Molecular structure data

None yet

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: 0

5. Number of tautomers: none

6. Topological molecule polar surface area 0

7. Number of heavy atoms: 6

8. Surface charge: 0

9. Complexity: 19.1

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

None yet

Storage method

This product should be kept sealed and dry.

Store in a cool, dry placeThe place. Store in an airtight container.

Synthesis method

First dissolve methyl bromide in ethanol, cool it indirectly with ice water, and pass in trimethylamine for reaction. During the reaction After tetramethylammonium bromide precipitates, filter and dry, the finished product is obtained:

Purpose

Used as polarographic analysis reagent. Chemical analysis reagents. Determination of alkali metals and alkaline earth metals.