Dimethyl thiophosphoryl chloride [UN2267] [Poison]
Dimethylphosphinothioic chloride
CAS: 993-12-4
Molecular Formula: C2H6ClPS
Dimethyl thiophosphoryl chloride [UN2267] [Poison] - Names and Identifiers
Dimethyl thiophosphoryl chloride [UN2267] [Poison] - Physico-chemical Properties
| Molecular Formula | C2H6ClPS |
| Molar Mass | 128.56 |
| Density | 1.23 |
| Boling Point | 69-70 °C (11 mmHg) |
| Flash Point | 105℃ |
| Vapor Presure | 11.3mmHg at 25°C |
| Appearance | clear liquid |
| Color | Colorless to Almost colorless |
| Storage Condition | Refrigerator |
| Refractive Index | 1.538-1.541 |
| Physical and Chemical Properties | character: colorless or amber liquid with pungent odor. |
| Use | Used as a pesticide intermediate, used in the production of trimethoprim, insecticide nitrile, 1605, methyl 1605, methamidophos and acephate, methyl pyrimidine and so on |
Dimethyl thiophosphoryl chloride [UN2267] [Poison] - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R34 - Causes burns R29 - Contact with water liberates toxic gas R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S8 - Keep container dry. 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. |
| UN IDs | 1760 |
| Hazard Class | 8 |
| Packing Group | II |
Dimethyl thiophosphoryl chloride [UN2267] [Poison] - Nature
Open Data Verified Data
colorless or amber liquid with pungent odor. Insoluble in water, soluble in ethanol, benzene, chloroform, carbon tetrachloride, ethyl ether, ethyl acetate and other organic solvents. Slightly soluble in hexane. The relative density was 1. 32. Refractive index 4795. Boiling Point 66~67 degrees C (2kPa). Flash point 105 °c.
Last Update：2024-01-02 23:10:35
Dimethyl thiophosphoryl chloride [UN2267] [Poison] - Preparation Method
Open Data Verified Data
- methanol alkali method methanol and trichlorosulfon were reacted with methanol solution at O ℃ to produce O-methylthiophosphoryl dichloride, and then further reacted with methanol at O ℃ to obtain 0,O-= methylthiophosphoric acid monochloride. The reactants were washed with water and subjected to distillation under reduced pressure to obtain a finished product.
- The sodium methoxide method was obtained by the interaction with the phosphorus chloride.
- phosphorus pentasulfide method from phosphorus pentasulfide and methanol, 0,O '-methyl dithiophosphate; And then obtained by chlorination.
Last Update：2022-01-01 10:38:13
Dimethyl thiophosphoryl chloride [UN2267] [Poison] - Use
Open Data Verified Data
pesticide intermediates, used for the preparation of trimethoprim, insecticide and 1605, methyl 1605, methamidophos and acephate, etc. It is also used as a mineral processing collector.
Last Update：2022-01-01 10:38:13
Dimethyl thiophosphoryl chloride [UN2267] [Poison] - Safety
Open Data Verified Data
- This product is toxic. Irritant to eyes, skin and mucous membranes, inhalation or absorption through the skin can cause poisoning. Mild poisoning often cause dizziness, Head Pain, Fatigue, loss of appetite, then Vomit, Diarrhea, numbness of limbs. Severe poisoning will appear Coma, convulsions, incontinence and pulmonary edema and other symptoms, severe central nervous system or circulatory system failure and death. The LD50 for mice was 450mg/kg.
- in the process of production, transportation and use, the poison must be prevented from escaping, the workshop should be well ventilated, the production equipment should be sealed, and the operator should wear protective equipment. Splash in the eyes can be washed with water or extended treatment. Wash the skin with soap and water. Oral poisoning with saline or 2% ~ 4% sodium bicarbonate solution gastric lavage.
- This product is an intermediate. Can be stored in ceramic or enamel containers. Hazardous materials shall be stored and transported according to regulations.
Last Update：2022-01-01 10:38:14
Dimethyl thiophosphoryl chloride [UN2267] [Poison] - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | used as pesticide intermediate, used in the production of trimethoprim, chlorfenitrile, 1605, methyl 1605, methamidophos and acephate, |
Last Update：2024-09-05 09:57:37
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