1,1,2,2-Tetrachloorethaan
Tetrachloroethane
CAS: 79-34-5
Molecular Formula: C2H2Cl4
1,1,2,2-Tetrachloorethaan - Names and Identifiers
1,1,2,2-Tetrachloorethaan - Physico-chemical Properties
| Molecular Formula | C2H2Cl4 |
| Molar Mass | 167.85 |
| Density | 1.586g/mLat 25°C(lit.) |
| Melting Point | -43 °C |
| Boling Point | 147°C(lit.) |
| Flash Point | 142-146°C |
| Water Solubility | 0.3 g/100 mL (25 ºC) |
| Solubility | 2830g/l |
| Vapor Presure | 8 mm Hg ( 20 °C) |
| Vapor Density | 5.8 (vs air) |
| Appearance | Liquid |
| Color | slightly green-yellow |
| Exposure Limit | Potential occupational carcinogen. NIOSH REL: TWA 1 ppm (7 mg/m3), IDLH100 ppm; OSHA PEL: TWA 5 ppm (35 mg/m3); ACGIH TLV: TWA 1 ppm (adopted). |
| Merck | 14,9189 |
| BRN | 969206 |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with strong oxidizing agents, strong bases. Reacts violently with sodium, potassium, nitrates, 2,4-dinitrophenyl disulphide. |
| Refractive Index | n20/D 1.494(lit.) |
| Physical and Chemical Properties | Colorless liquid. Melting Point -44 ℃, boiling point 146.5 ℃,62 ℃(6.0kPa), relative density 1.58658(25/4 ℃), refractive index 1.49419. With ethanol, methanol, ether, chloroform, benzene, carbon tetrachloride, carbon disulfide, petroleum ether, dimethyl formamide and oil miscible, insoluble in water. It can volatilize with water vapor, has the smell of chloroform, and does not burn. |
| Use | For the production of metal detergent, pesticides, herbicides, solvents, etc |
1,1,2,2-Tetrachloorethaan - Risk and Safety
| Risk Codes | R26/27 - R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R59 - Dangerous for the ozone layer R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable |
| Safety Description | S38 - In case of insufficient ventilation, wear suitable respiratory equipment. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37 - Wear suitable protective clothing and gloves. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
| UN IDs | UN 1702 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | KI8575000 |
| TSCA | Yes |
| HS Code | 2903 19 00 |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 orally in rats: 0.20 ml/kg (Smyth) |
1,1,2,2-Tetrachloorethaan - Reference Information
| Henry's Law Constant | 6.22 at 30 °C (headspace-GC, Sanz et al., 1997) |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| (IARC) carcinogen classification | 2B (Vol. 20, Sup 7, 71, 106) 2014 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | 1,1,2, 2-tetrachloroethane is a thallium chloride organism of ethane, it is the most soluble organic chlorine compound. As a refrigerant, it is also referred to as R-130. |
| purpose | This product is an effective solvent. However, due to high toxicity, the use of this aspect is limited. Industry is mainly used as raw materials of trichloroethylene and tetrachloroethylene. used as solvent and analytical reagent used in the production of metal detergents, pesticides, herbicides, solvents and so on solvent. Refractive index was measured. Crystallographically used as an infusion. Biological experiments were used to make kidney, liver and gastrointestinal lesions. Paint rust remover. Determination of theobromine in cocoa beans. � |
| production method | is prepared by chlorination of acetylene. The reaction is carried out in tetrachloroethane itself as a solvent (explosion occurs when gaseous acetylene and chlorine react directly), and the catalyst is antimony pentachloride or ferric chloride. When ferric chloride catalyst is used, the system is kept under negative pressure, tetrachloroethane is in a reflux state, dry acetylene and chlorine are continuously introduced, and the heat of reaction is absorbed and removed by the refluxing tetrachloroethane vapor, the yield was 97% (versus acetylene). |
| category | pesticide |
| toxicity grade | high toxicity |
| Acute toxicity | oral-rat LD50: 250 mg/kg; Intraperitoneal-mouse LD50: 821 mg/kg |
| explosive hazard characteristics | explosive when exposed to sodium or potassium |
| flammability hazard characteristics | non-flammable; Exposure to potassium hydroxide heat releases flammable gas; Water can promote decomposition; toxic chloride smoke from combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from oxidants and food additives |
| fire extinguishing agent | foam, dry powder, sand |
| Occupational Standard | TWA 35 mg/m3; Tel 35 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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