phorate
phorate - Names and Identifiers
| Name | phorate |
| Synonyms | 3911 Aastar Forate Foraat ac3911 Geomet ac8911 AC 3911 Agrimet phorate americancyanamid3,911 American Cyanamid 3,911 experimentalinsecticide3911 O,O-diethyl ethylthiomethyl phosphorodithioate O,O-diethyl S-[(ethylsulfanyl)methyl] phosphorodithioate |
| CAS | 298-02-2 |
| EINECS | 206-052-2 |
| InChI | InChI=1/C7H17O2PS3/c1-4-8-10(11,9-5-2)13-7-12-6-3/h4-7H2,1-3H3 |
phorate - Physico-chemical Properties
| Molecular Formula | C7H17O2PS3 |
| Molar Mass | 260.38 |
| Density | d425 1.156 |
| Melting Point | -43°C |
| Boling Point | 125-127°C (2 mmHg) |
| Flash Point | 132.8°C |
| Water Solubility | 0.005 g/100 mL |
| Vapor Presure | 8.5×10-2 Pa (25 °C) |
| Appearance | neat |
| Exposure Limit | ACGIH TLV: TWA 0.05 mg/m3 ppm, STEL 0.2 mg/m3 |
| BRN | 1708517 |
| Storage Condition | 0-6°C |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | nD25 1.5329 |
| Physical and Chemical Properties | Melting Point -43°C boiling point 125-127°C (2 mmHg) storage conditions 0-6°C water solubility 0.005g/100 mL |
| Use | It is a kind of internal absorption insecticide and acaricide, which is used to control and control the insect pests of the puncture-suction mouthpiece and the chewing mouthpiece. |
phorate - Upstream Downstream Industry
| Raw Materials | Formaldehyde sodium hydrosulfide Chloroethane Sodium hydroxide Phosphorus pentasulfide Ethyl Alcohol |
phorate - Nature
Open Data Verified Data
colorless oily liquid, with odor. In room temperature water solubility of 50~60mg/L, soluble in most organic solvents and fatty oils. In alkaline solution decomposition failure.
Last Update：2025-06-10 22:55:16
phorate - Preparation Method
Open Data Verified Data
obtained by reacting 0,O-= ethyl dithiophosphate and ethyl mercaptan in the presence of aqueous formaldehyde.
Last Update：2022-01-01 10:11:24
phorate - Application
Open Data Verified Data
The product is a highly toxic and efficient broad-spectrum insecticide. With the role of absorption and fumigation, mainly used for seed dressing, seed soaking or soil treatment, prevention and control of early Cotton aphids, Red Spider, thrips, etc., and can also cure ground tiger, Diels, needle worm and other underground pests.
Last Update：2025-08-19 16:24:40
phorate - Safety
Open Data Verified Data
female rats, mice oral LD50:1. 1 mg/kg, 2.3mg/kg.
Last Update：2022-01-01 10:11:25
phorate - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | phorate is used for cotton seed dressing, seed soaking and soil treatment. it can control early aphids, red spiders, thrips, etc. of cotton, and can also control pests such as ground tigers, mole crickets and golden needle worms. this product has the functions of internal absorption and fumigation. it is mainly used for seed dressing, seed soaking or soil treatment of cottonseed to prevent and control aphids, red spiders, thrips, etc. in the early stage of cotton, and can also treat underground pests such as earthworm, mole cricket, golden needle worm, etc. It is a systemic insecticide and acaricide, used to prevent and control pests of piercing mouthpart and chewing mouthpart It is used to control various underground and aboveground pests, suitable for various crops, fruit trees, etc. |
| Production method | O,O-diethyldithiophosphate and ethanethiol are obtained by reacting in the presence of formaldehyde aqueous solution. About 23% of diethyldithiophosphate is mixed with 36% formaldehyde aqueous solution and ethanethiol according to the molar ratio of 1:1.1:1.16, and two reaction cylinders in series are continuously added, the temperature is controlled at 50 ℃ and 70 ℃, respectively, to synthesize phorate, and the phorate crude oil with a content of 85-90% is obtained through continuous liquid separation, and the yield is 85-92%. The processed dosage form is 60% emulsifiable concentrate. Raw material consumption quota: diethyldithiophosphate 900kg/t, ethanethiol 350kg/t, formaldehyde (36%)530kg/t. |
| category | pesticide |
| toxicity classification | highly toxic |
| acute toxicity | oral-rat LD50: 1 mg/kg; Oral-mouse LD50: 6.59 mg/kg |
| flammability hazard characteristics | flammability in case of open flame and high heat; Thermal decomposition of toxic phosphorus and sulfur oxide gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidants, acids and food additives |
| fire extinguishing agent | water, sand, carbon dioxide |
| occupational standard | TLV-TWA 0.05 mg/m3; STEL 0.2 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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