1,2,2-Trichloroethane
1,1,2-Trichloroethane
CAS: 79-00-5
Molecular Formula: C2H3Cl3
1,2,2-Trichloroethane - Names and Identifiers
| Name | 1,1,2-Trichloroethane |
| Synonyms | beta-T 1,1,2-tce ethane trichloride 1,1,2-Trichlorethan beta-trichloroethane 1,1,2-Trichlorethane beta-Trichloroethane 1,2,2-Trichloroethane 1,1,2-trichloro-ethan 1,1,2-Trichloroethane Trichloroethane, 1,1,2-Vinyl trichloride 1,1,2-TRICHLOROETHANE (VINYL TRICHLORIDE) |
| CAS | 79-00-5 |
| EINECS | 201-166-9 |
| InChI | InChI=1/3C2H6.3ClH/c3*1-2;;;/h3*1-2H3;3*1H/p-3 |
1,2,2-Trichloroethane - Physico-chemical Properties
| Molecular Formula | C2H3Cl3 |
| Molar Mass | 133.4 |
| Density | 1.435 g/mL at 25 °C (lit.) |
| Melting Point | -37 °C |
| Boling Point | 110-115 °C (lit.) |
| Flash Point | 11°C |
| Water Solubility | 4 g/L (20 ºC) |
| Solubility | Soluble in ethanol and chloroform (U.S. EPA, 1985) |
| Vapor Presure | 30.3 at 25 °C (quoted, Mackay et al., 1982) |
| Appearance | Liquid |
| Color | Clear colorless |
| Exposure Limit | Potential occupational carcinogen. NIOSH REL: TWA 10 ppm (45 mg/m3),IDLH 100 ppm; OSHA PEL: TWA 10 ppm (adopted). |
| Merck | 14,9637 |
| BRN | 1731726 |
| Storage Condition | 2-8°C |
| Stability | Stable. |
| Refractive Index | n20/D 1.471(lit.) |
| Physical and Chemical Properties | The pure product is a colorless transparent liquid with special sweet taste similar to chloroform. melting point -37 ℃ boiling point 113.7 ℃ relative density 1.4431 refractive index 1.4711 solubility miscible with alcohols, ethers, ketones and esters, insoluble in water. |
| Use | Mainly used as fat, resin, wax, alkaloid solvent, rubber and resin intermediates, pesticides, pesticides, preparation of 1, 1-dichloroethylene and other chemicals |
1,2,2-Trichloroethane - Risk and Safety
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R40 - Limited evidence of a carcinogenic effect R66 - Repeated exposure may cause skin dryness or cracking R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable R23 - Toxic by inhalation R21/22 - Harmful in contact with skin and if swallowed. |
| Safety Description | S9 - Keep container in a well-ventilated place. S36/37 - Wear suitable protective clothing and gloves. S46 - If swallowed, seek medical advice immediately and show this container or label. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
| UN IDs | 3082 |
| WGK Germany | 3 |
| RTECS | KJ3150000 |
| HS Code | 29031990 |
| Hazard Note | Irritant |
| Hazard Class | 6.1(b) |
| Packing Group | III |
| Toxicity | Acute oral LD50 for mice 378 mg/kg, rats 580 mg/kg (quoted, RTECS, 1985). |
1,2,2-Trichloroethane - Nature
Open Data Verified Data
The Pure product is a colorless transparent liquid with a special sweet taste similar to chloroform. Boiling point 113.7 °c. The relative density (d20) was 1. 4431. Refractive index 4711. Vapor pressure (20 C) 2.4339kPa. Melting Point -37 °c. The critical temperature is 333. The critical pressure is 5. 14lMPa. Non-flammable. With alcohol, ether, ketone, Ester miscible, insoluble in water.
Last Update：2024-01-02 23:10:35
1,2,2-Trichloroethane - Preparation Method
Open Data Verified Data
- vinyl chloride chlorination method trichloroethane was introduced into the reaction vessel in advance, and then vinyl chloride and chlorine gas (molar ratio 1:1.2) were introduced at 20 to 25 ° C. To conduct chlorination synthesis. The product was obtained by washing with water and separation.
- 1,2-ethyl chloride chloride in the presence of aluminum chloride or other metal chloride, at 60 degrees C.
Last Update：2022-01-01 10:14:08
1,2,2-Trichloroethane - Use
Open Data Verified Data
It is mainly used as a solvent for fats, oils, waxes and resins, an extractant for dyes and fragrances, an intermediate for resins and rubbers, an agricultural insecticide, a fumigant and a synthetic 1,1-= raw material of vinyl chloride.
Last Update：2022-01-01 10:14:07
1,2,2-Trichloroethane - Safety
Open Data Verified Data
high toxicity. It has a stimulating effect on the eyes and nasal mucosa. Mice inhaled 4H, its LD50 is 2000 x 10-6. Oral LD50 O.1 -0.2g/kg. The maximum allowable concentration in the air is 10 x 10-6. Packed in acid-resistant iron barrels.
Last Update：2022-01-01 10:14:08
1,2,2-Trichloroethane - Reference Information
| Henry's Law Constant | 8.70 at 30 °C (headspace-GC, Sanz et al., 1997) |
| LogP | 2.05-2.49 at 20℃ and pH7 |
| (IARC) carcinogen classification | 3 (Vol. 52, 71) 1999 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| properties | 1,1, 2-trichloroethane, TCE for short, freezing point -35 ℃, is a colorless, transparent and non-flammable liquid, which is insoluble in water, but mixed with alcohols, ethers and other organic solvents to dissolve each other . The state is stable at room temperature. The products of the decomposition of this substance are incomplete combustion of carbon monoxide, complete combustion of the two carbon oxides and corrosive hydrogen chloride gas and phosgene. |
| Use | 1,1, 2-trichloroethane (CH2ClCHCl2) is an isomer of trichloroethane and is carcinogenic, it is a colorless non-flammable liquid, an intermediate for chemical synthesis, and has solvent properties but is not often used. mainly used as solvent of fat, resin, wax, alkaloid, intermediate of rubber and resin, pesticide, preparation of 1, 1-dichloroethylene and other chemicals used as fat, oil, wax and resin solvents, dyes, perfume extractants, resins and rubber intermediates, agricultural pesticides, fumigants and synthetic 1, 1-dichloroethylene raw materials. For the production of vinylidene chloride. used in organic synthesis and also as a solvent for cellulose acetate and rubber |
| preparation | trichloroethane was introduced into the reactor, and then 1 was introduced at 20~25 ° C: the reaction was carried out with trichloroethylene and chlorine in a molar ratio of 1.2. After washing with water and separation, a finished product was obtained. ClCH=CH2 Cl2→Cl2CHCHCl |
| production method | 1. In the vinyl chloride chlorination method, trichloroethane was introduced into the reaction vessel in advance, and then vinyl chloride and chlorine gas (molar ratio 1:1.2) were introduced into the reaction vessel at a temperature of 20 ° C. To 25 ° C. For chlorination synthesis. The product was obtained by washing with water and separation. 2.1, 2-dichloroethane chloride in the presence of aluminum chloride or other metal chloride, at 60 deg C to obtain. |
| category | pesticide |
| toxicity grade | high toxicity |
| Acute toxicity | intraperitoneal-rat LD50: 265 mg/kg; Oral-mouse LD50: 378 mg/kg |
| stimulation data | Skin-rabbits 810 mg/24 h severe; eye-rabbit 500 mg/24 h mild |
| flammability hazard characteristics | non-flammable; Toxic chloride fumes from combustion; Hydrochloric acid from hydrolysis |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from food additives |
| fire extinguishing agent | water, foam, carbon dioxide, sand |
| Occupational Standard | TWA 45 mg/m3; Tel 110 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-and health-threatening concentration | 100 ppm |
Last Update：2024-04-10 22:29:15
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