Trichloroethylene , ACS,99.5% , 79-01-6
Synonym(s):
TCE;Trichloroethene;Trichloroethylene solution
CAS NO.：79-01-6
Empirical Formula: C2HCl3
Molecular Weight: 131.39
MDL number: MFCD00000838
EINECS: 201-167-4
PRODUCT Properties
| Melting point: | -86 °C |
| Boiling point: | 87 °C |
| Density | 1.463 g/mL at 25 °C(lit.) |
| vapor density | 4.5 (vs air) |
| vapor pressure | 61 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 90°C |
| storage temp. | 2-8°C |
| solubility | Soluble in acetone, ethanol, chloroform, ether (U.S. EPA, 1985), and other organic solvents
including bromoform, carbon tetrachloride, methylene chloride, trichloroethylene, and tetrachloroethylene. |
| form | Liquid |
| color | Clear colorless |
| Odor | Chloroform-like; ethereal. |
| Odor Threshold | 3.9ppm |
| Water Solubility | Slightly soluble. 0.11 g/100 mL |
| Merck | 14,9639 |
| BRN | 1736782 |
| Henry's Law Constant | 3.14 at 1.8 °C, 8.47 at 21.6 °C, 19.0 at 40.0 °C, 26.5 at 50 °C, 35.8 at 60 °C, 56.6 at 70 °C
(EPICS-GC, Shimotori and Arnold, 2003) |
| Exposure limits | TLV-TWA 50 ppm (～270 mg/m3)
(ACGIH), 100 ppm (MSHA and OSHA);
TLV-STEL 200 ppm (ACGIH); ceiling 200
ppm (OSHA); carcinogenicity: Animal Lim ited Evidence, Human Inadequate Evidence
(IARC). |
| Dielectric constant | 3.4（16℃） |
| Stability: | Stable. Incompatible with oxidizing agents, aluminium, magnesium, strong bases, reducing agents. Light-sensitive. Reacts violently with many metals, ozone, potassium nitrate, potassium hydroxide, sodium hydroxide. |
| LogP | 2.53 at 20℃ |
| CAS DataBase Reference | 79-01-6(CAS DataBase Reference) |
| IARC | 1 (Vol. Sup 7, 63, 106) 2014 |
| NIST Chemistry Reference | Trichloroethylene(79-01-6) |
| EPA Substance Registry System | Trichloroethylene (79-01-6) |
Description and Uses
Trichloroethylene (IUPAC), CHClCCl2, is a stable, low-boiling, colorless liquid with a chloroform-like odor. It is not corrosive to the common metals even in the presence of moisture. It is slightly soluble in water and is nonflammable. It is toxic by inhalation, with a TLV of 50 ppm and an IDLH of 1000 ppm in air. The FDA has prohibited its use in foods, drugs, and cosmetics. The four-digit UN identification number is 1710. The NFPA 704 designation is health 2, flammability 1, and reactivity 0. Its primary uses are in metal degreasing, dry cleaning, as a refrigerant and fumigant, and for drying electronic parts.
Trichloroethylene is used as a solvent, in drycleaning, in degreasing, and in limited use asa surgical anesthetic.
Safety
| Symbol(GHS) |   GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H315-H317-H319-H336-H341-H350-H412 |
| Precautionary statements | P202-P273-P280-P302+P352-P305+P351+P338-P308+P313 |
| Hazard Codes | T,F |
| Risk Statements | 45-36/38-52/53-67-68-39/23/24/25-23/24/25-11 |
| Safety Statements | 53-45-61-36/37-16-7 |
| OEB | B |
| OEL | TWA: 25.0 ppm, STEL: 2.0 ppm |
| RIDADR | UN 1710 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | KX4550000 |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29032200 |
| Hazardous Substances Data | 79-01-6(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 4.92 ml/kg; LC (4 hrs) in rats: 8000 ppm (Smyth) |
| IDLA | 1,000 ppm |
