fasciolin
hexachloroethane
CAS: 67-72-1
Molecular Formula: C2Cl6
fasciolin - Names and Identifiers
fasciolin - Physico-chemical Properties
| Molecular Formula | C2Cl6 |
| Molar Mass | 236.74 |
| Density | 2.091 g/mL at 25 °C (lit.) |
| Melting Point | 183-185 °C (dec.) (lit.) |
| Boling Point | 186℃ |
| Flash Point | 9℃ |
| Water Solubility | 0.05 g/L (22 ºC) |
| Solubility | Soluble in alcohol, benzene, chloroform, ether |
| Vapor Presure | 0.4 mm Hg ( 20 °C) |
| Vapor Density | 8.16 (vs air) |
| Appearance | Crystals or Crystalline Powder |
| Color | White |
| Exposure Limit | TLV-TWA 10 ppm (～100 mg/m3) (ACGIH),1 ppm (MSHA and OSHA), Lowest Feasi ble Limit (NIOSH); carcinogenicity: AnimalLimited Evidence (IARC). |
| Merck | 14,4679 |
| BRN | 1740341 |
| Storage Condition | 2-8°C |
| Stability | Stable. Non-combustible. May react with hot metals, strong oxidizing agents. |
| Refractive Index | 1.5282 (estimate) |
| Physical and Chemical Properties | Character: colorless needle-like orthorhombic crystal with camphor-like fragrance. melting point 186~187 ℃ boiling point 186 ℃ relative density 2.094 solubility: soluble in ethanol, ether, benzene, chloroform and oils, insoluble in water. |
| Use | Used as a raw material for organic synthesis, a degassing agent for aluminum and its alloys |
fasciolin - Risk and Safety
| Risk Codes | R40 - Limited evidence of a carcinogenic effect R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36/37/38 - Irritating to eyes, respiratory system and skin. R39/23/24/25 - R36/38 - Irritating to eyes and skin. R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S24 - Avoid contact with skin. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | UN 9037 |
| WGK Germany | 3 |
| RTECS | KI4025000 |
| TSCA | Yes |
| HS Code | 29031990 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | MLD i.v. in dogs: 325 mg/kg (Barsoum, Saad) |
fasciolin - Upstream Downstream Industry
| Raw Materials | Chlorine Trichloroethylene Trichloroethylene Sodium hydroxide Perchlorethylene Perchlorethylene |
| Downstream Products | hexachloroethane |
fasciolin - Nature
Open Data Verified Data
colorless needle-like orthorhombic crystals, with camphor-like fragrance, non-flammable. Soluble in ethanol, ether, benzene, chloroform and oil, insoluble in water. Boiling Point (103.591kPa) 186 °c. Melting point 186-187 ℃ (sealed tube), easy sublimation.
Last Update：2024-01-02 23:10:35
fasciolin - Preparation Method
Open Data Verified Data
- trichloroethylene photochlorination trichloroethylene reacts with chlorine gas to generate pentachloroethane, and then reacts with liquid alkali to generate tetrachloroethylene. Tetrachloroethylene and liquid chlorine (1:0.213) by light chlorination reaction of crude products, and then neutralized by soda ash liquid, water washing, cooling crystallization, centrifugal filtration, drying, grinding and to obtain the finished product.
- chlorination of tetrachloroethylene.
Last Update：2022-01-01 10:14:11
fasciolin - Use
Open Data Verified Data
used as a solvent; Used in the production of Freon -113, pesticide, medicine, veterinary medicine, smoke agent, Defoamer, deaerator of aluminum products, deoxidizer (aluminum, magnesium, copper and its alloys), cutting oil additives and PVC plasticizer, organic synthesis intermediates; Also used as camphor substitutes and rubber vulcanization accelerator.
Last Update：2022-01-01 10:14:12
fasciolin - Safety
Open Data Verified Data
- This product is one of the most toxic chlorinated hydrocarbons, which has toxic effects on human central nervous system. At room temperature, the vapor concentration is small, so the toxicity to the liver and kidney is small. Dogs were injected intravenously with ML 32s mg/kg. The maximum allowable concentration in air is 1 × 10-6.
- production equipment should be closed. Good ventilation was maintained at the production site. The operator should wear protective gear.
- It is packed in an iron drum lined with a plastic bag with a net weight of 50kg per drum. The hazardous materials shall be stored and transported according to the regulations. Heat and sublimation should be avoided.
Last Update：2022-01-01 10:14:13
fasciolin - Reference Information
| Henry's Law Constant | 1.43, 2.81, and 5.31 at 10, 20, and 30 °C, respectively (Munz and Roberts, 1987) |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| (IARC) carcinogen classification | 2B (Vol. 73) 1999 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | used as a lubricant additive, can also be used in the manufacture of pesticides, insect repellents, smoke, etc. The product is used as a solvent and used in the production of Freon -113, pesticides, pharmaceuticals, veterinary drugs, smoking agents, defoamers, deaerators of aluminum products, deoxidizers (aluminum, magnesium, copper and their alloys) cutting oil additives and PVC plasticizer, organic synthesis intermediates. Hexachloroethane mixed with zinc powder, ammonium chloride, ammonium perchlorate and the like in proportion can be used as a smoke generator. Hexachloroethane is also used as a camphor substitute and a rubber vulcanization accelerator. Hexachloroethane itself is also a veterinary anthelmintic. It is mainly used for liver and stomach diseases of ruminants, other clonorchiasis and nematode diseases. used as raw materials for organic synthesis, degassing agent for aluminum and its alloys |
| production method | is obtained by chlorination of tetrachloroethane. The dehydrated tetrachloroethane was put into a glass ionization reaction pan, and chlorine gas was introduced under strong light irradiation. The reaction temperature was gradually increased, and finally maintained at 90-100 °c. When the reaction solution turned clear from the water and the crystallization occurred in the chlorine tube, the chlorination reached the end point. The chlorine supply was stopped, the temperature was increased to 120 ℃, and the residual chlorine in the pan was discharged to the end point. The chlorine supply was stopped, and the temperature was raised to 120 ° C., and the residual chlorine in the pan was discharged. Discharge into a crystallization pan containing boiling water, wash with hot water, and stir with 1% sodium carbonate and 5% urea solution to remove chlorine. After sufficiently washing with water, the crystals were cooled, centrifuged and filtered. Finally, the crystals were immersed in distilled water and then spin-dried, dried at 40 ° C. And pulverized to obtain hexachloroethane. Industry also uses trichloroethylene and chlorine light chlorination. Trichloroethylene and chlorine light chlorination reaction to produce pentachloroethane, and then with the liquid alkali to produce tetrachloroethylene. Tetrachloroethylene and liquid chlorine (1:0.213) by light chlorination reaction of crude products, and then neutralized by soda ash liquid, water washing, cooling crystallization, centrifugal filtration, drying, crushing to obtain the finished product. In the production of hexachloroethane by this method, 680kg of trichloroethylene and 700kg of liquid chlorine are consumed per ton of product. In addition, carbon tetrachloride in the presence of aluminum chloride reaction with chlorine, or ethylene at 300-350 deg C, reaction with chlorine can be obtained. |
| category | pesticide |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50:4460 mg/kg; Intraperitoneal-mouse LD50:4500 mg/kg |
| flammability hazard characteristics | non-combustible; High thermal decomposition; Toxic chloride released by combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from food additives |
| extinguishing agent | water mist, foam, carbon dioxide, sand. |
| Occupational Standard | TWA 10 mg/m3; Tel 30 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-and health-threatening concentration | 300 ppm |
Last Update：2024-04-10 22:29:15
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Raw Materials for fasciolin
Downstream Products for fasciolin