Structural formula
| Business number | 05K8 |
|---|---|
| Molecular formula | C2H2Br2 |
| Molecular weight | 185.85 |
| label |
Ethylene dibromide, 1,2-dibromoethylene, 1,2-ethyne dibromide, Acetylene dibromide, Acetylene dibromide, 1,2-Dibromethen |
Numbering system
CAS number:540-49-8
MDL number:MFCD00000184
EINECS number:208-747-6
RTECS number:KV7700000
BRN number:None
PubChem ID:None
Physical property data
1. Character: Undetermined
2. Density (g/ cm3,25/4℃):2.27
3. relative steam Density (g/cm3,air=1): Undetermined
4. Melting point (ºC): Undetermined
5. Boiling point (ºC,Normal pressure):107-110
6. Boiling point (ºC,8kPa): Undetermined
7. Refractive index:1.542
8. Flash point (ºF): Undetermined
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,55.1ºC): Undetermined
13. Heat of combustion (KJ/mol): Undetermined
14. Critical temperature (ºC): Undetermined
15. Critical pressure (KPa): Undetermined
16. Oil and water (octanol/Log value of the partition coefficient (water): Undetermined
17. Explosion limit (%,V/V): Undetermined
18. Lower explosion limit (%,V/V): Undetermined
19. Solubility:Undetermined
Toxicological data
Mutagenicity data: Microbial organismTESTSystematic mutation: Bacteria–Typhimurium Salmonella: 100ug/plate;
Ecological data
This substance may be harmful to the environment and water bodiesSpecial attention should be paid.
Molecular structure data
1. Molar refractive index: 26.83
2. Molar volume (m3/mol）：81.5
3. isotonic specific volume (90.2K):203.2
4. Surface Tension (dyne/cm):38.5
5. Polarizability（10-24cm3):10.63
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 1.9
2. Hydrogen Bonding Number of donors: 0
3. Hydrogen Bonding Number of receptors: 0
4. Rotatable Number of chemical bonds: 0
5. Interchange Number of isomers:
6. Topological molecules Polar surface area (TPSA）：0
7. Number of heavy atoms:4
8. Surface charge ：0
9. Complexity ：19.2
10. Isotope atomic number:0
11. Determine the number of atomic stereocenters:0
12. Uncertain number of atomic stereocenters:0
13. Determine the number of stereocenters of chemical bonds:1
14, Uncertain number of stereocenters of chemical bonds:0
15. Number of covalent bond units: 1
Properties and stability
Use and store according to specifications, no decomposition will occur, and avoid contact with oxides
Storage method
Stored in a cool, dry, well-ventilated warehouse. Keep away from fire and heat sources. Protect from direct sunlight. The packaging is sealed. They should be stored separately from acids and food chemicals, and avoid mixed storage. Suitable materials should be available in the storage area to contain spills.
Synthesis method
None
Purpose
None
