n-methyl bis(trifluoroacetamide)
structural formula
| business number | 078w |
|---|---|
| molecular formula | c5h3f6no2 |
| molecular weight | 223.07 |
| label |
n-methylbis(trifluoroacetamide), n-methylbistrifluoroacetamide, n,n-bis(trifluoroacetyl)methylamine, mbtfa, cf3con(ch3)cocf3, reagents for gas chromatography analysis |
numbering system
cas number:685-27-8
mdl number:mfcd00000412
einecs number:211-680-5
rtecs number:24896572
brn number:1878402
pubchem id:none
physical property data
1. characteristics: colorless liquid.
2. density (g/ml,25/4℃): 1.547
3. relative vapor density (g/ml,air=1): undetermined
4. melting point (ºc): undetermined
5. boiling point (ºc,normal pressure): 121-122
6. boiling point (ºc,5.2kpa): undetermined
7. refractive index: 1.346
8. flash point (ºc): 42
9. specific optical rotation (º): undetermined
10. autoignition point or ignition temperature (ºc): undetermined
11. vapor pressure (kpa,25ºc): undetermined
12. saturated vapor pressure (kpa,60ºc): undetermined
13. heat of combustion (kj/mol): undetermined
14. critical temperature (ºc): undetermined
15. critical pressure (kpa): undetermined
16. oil and water (octanol/logarial value of the partition coefficient of water: undetermined
17. explosion limit (%,v/v): undetermined
18. lower explosion limit (%,v/v): undetermined
19. solubility: undetermined.
toxicological data
none
ecological data
usually not harmful to water, do not discharge materials into the surrounding environment without government permission.
molecular structure data
1. molar refractive index:29.90
2. molar volume（m3/mol)：145.3
3. isotonic ratio （90.2k)：314.1
4. surface tension（dyne/cm）：21.8
5. dielectric constant:
6. dipole moment（10-24cm3） ：
7. polarizability:11.85
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): 1.7
2. number of hydrogen bond donors: 0
3. number of hydrogen bond acceptors: 8
4. number of rotatable chemical bonds: 0
5. number of tautomers: none
6. topological molecule polar surface area 37.4
7. number of heavy atoms: 14
8. surface charge: 0
9. complexity: 228
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
keep away from oxides, strong acids, and strong bases.
storage method
store in an airtight container and place store in a cool, dry place. store away from oxidizing agents. keep away from open flames.
synthesis method
none
purpose
none