2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol
dicofol
CAS: 115-32-2
Molecular Formula: C14H9Cl5O
2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol - Names and Identifiers
2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol - Physico-chemical Properties
| Molecular Formula | C14H9Cl5O |
| Molar Mass | 370.49 |
| Density | 1.45 |
| Melting Point | 78.5°C |
| Boling Point | 225°C |
| Flash Point | 11°C |
| Water Solubility | Slightly soluble. |
| Solubility | Slightly soluble in water, soluble in most organic solvents. |
| Vapor Presure | 5.3 x 10-5 Pa |
| Appearance | White or gray powder, or colorless crystals |
| Merck | 13,3113 |
| pKa | 10.70±0.29(Predicted) |
| Storage Condition | APPROX 4°C |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. Hydrolyzes in basic solution. Corrodes some metals. |
| Sensitive | Sensitive to light |
| Refractive Index | 1.6000 (estimate) |
| MDL | MFCD00055271 |
| Physical and Chemical Properties | Pure white solid, industrial brown viscous. m.p.78.5 ~ 79.5 ℃, B. p.180 ℃/13.3, 225 ℃/666.5, relative density 1.45. Soluble in acetone, ethyl acetate, xylene and other organic solvents, water solubility of 0.8mg/L. Stable in acidic medium, easy to decompose in case of alkali. |
| Use | Widely used in cotton, fruit trees, tea and other crops to control red spider |
2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol - Risk and Safety
| Risk Codes | R21/22 - Harmful in contact with skin and if swallowed. R38 - Irritating to the skin R43 - May cause sensitization by skin contact R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S60 - This material and its container must be disposed of as hazardous waste. 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.) S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
| UN IDs | UN 2761/3077 |
| RTECS | DC8400000 |
| Toxicity | LD50 in rats (mg/kg): 1495 orally; 1150 i.p. (Brown) |
2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol - Upstream Downstream Industry
| Raw Materials | clofenotane o-Xylene Sulfuric acid Chlorine 2,2'-Azobis(2-methylpropionitrile) Octoxinol Sodium hydroxide |
2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol - Reference
| Reference Show more | 1. Liu Qing, Bi Xiaojie, Liu Liwei, et al. Determination of Trichlorfon Metabolites in Rat Urine by Gas Chromatography-Mass Spectrometry-Electron Capture Detection [J]. Chinese Journal of Health Inspection, 2015(08):1108-1111. |
2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol - Introduction
Slightly soluble in water, soluble in most organic solvents.
Last Update：2022-10-16 17:12:21
2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| (IARC) carcinogen classification | 3 (Vol. 30, Sup 7) 1987 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | acute oral LD50 for male rats is 809 mg/kg and 684 mg/kg for females. Acute percutaneous LD50 in rabbits was 1870mg/kg. The content of 300 mg/kg dicofol feed was fed to dogs for 1 year, and no poisoning was found. Carp LC501.1mg/L (48h), does not harm natural enemies. |
| use | broad-spectrum acaricide, effective for adult mites, juvenile mites and eggs. It has better selectivity, does not harm natural enemies, and is safe for Fenglou. Harmful mites are mainly contact killing, with long residual effect and no systemic effect. It is used to prevent and control various harmful mites of cotton, fruit trees and flowers. It is easy to produce resistance after years of use. When in use, the 20% emulsifiable concentrate is evenly sprayed with 800~1500 times of water. For initial use or when the temperature is high, the dilution multiple can be expanded. widely used in cotton, fruit trees, tea and other crops to control red spider non-systemic acaricide, used to control mites of various crops calibration instruments and devices; evaluation methods; working standards; quality assurance/quality control; others. Used as an acaricide. It is mainly used to prevent and control red spiders in cotton, fruit trees, corn, and wheat. It has the effects of contact killing and stomach poisoning, as well as killing adults, and has a certain egg killing effect. Generally, the concentration used is 800-1500 times diluted, the control effect is above 90%, and the duration is 10-20d. This product is harmful to eggplant and red jade apples. Calibration instruments and devices; evaluation methods; working standards; quality assurance/quality control; other. |
| production method | DDT is treated with dichloroethane as solvent, 1% azobisisobutyronitrile as catalyst, chlorine is introduced at 80~90 ℃ for reaction for 2 hours, and then the solvent is distilled out under reduced pressure. The hydrolysis reaction of the hydrolyzed chlorinated product is carried out in a mixed acidic medium of p-toluenesulfonic acid 33%, sulfuric acid 33%, and water 33%, and aryl iodate acid or lower alkyl sulfonic acid is used as an accelerator to react at 135~150 ℃ for 5~6h, and then an appropriate amount of low boiling point solvent dichloroethane and water are added to form two layers of oil and water. The oil layer is extracted, and the solvent is evaporated under reduced pressure to obtain dicofol. It is obtained by chlorination of industrial DDT under the catalysis of azobisisobutyronitrile, and the chloride is then hydrolyzed by formic acid. |
| category | pesticide |
| toxicity classification | highly toxic |
| acute toxicity | oral-rat LD50: 575 mg/kg; Oral-mouse LD50: 420 mg/kg |
| flammability hazard characteristics | flammability; thermal decomposition of toxic chloride gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from food raw materials storage and transportation |
| fire extinguishing agent | sand, dry powder, foam |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 19:05:09
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Product Name: *Mitotane Impurity 10 (Dicofol) Visit Supplier Webpage Request for quotationCAS: 115-32-2
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Product Name: Dicofol Visit Supplier Webpage Request for quotationCAS: 115-32-2
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Spot supply
Product Name: *Mitotane Impurity 10 (Dicofol) Visit Supplier Webpage Request for quotationCAS: 115-32-2
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
Multiple Specifications
Product Name: Dicofol Visit Supplier Webpage Request for quotationCAS: 115-32-2
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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Raw Materials for 2,2,2-trichloor-1,1-bis(4-chloorfenyl)-ethanol