TOBOSA
Thiobencarb
CAS: 28249-77-6
Molecular Formula: C12H16ClNOS
TOBOSA - Names and Identifiers
TOBOSA - Physico-chemical Properties
| Molecular Formula | C12H16ClNOS |
| Molar Mass | 257.78 |
| Density | 1.0756 (rough estimate) |
| Melting Point | 1.7°C |
| Boling Point | 126-129°C |
| Flash Point | 165.8°C |
| Water Solubility | 30mg/L(22 ºC) |
| Vapor Presure | 4.38E-05mmHg at 25°C |
| Appearance | Liquid |
| Color | Pale yellow |
| BRN | 1968440 |
| pKa | -1.26±0.70(Predicted) |
| Storage Condition | APPROX 4°C |
| Refractive Index | 1.5630 (estimate) |
| Physical and Chemical Properties | The pure product is a colorless transparent oily liquid, and the industrial product is a light yellow to light yellow brown liquid. B. p.126 ~ 129 °c/1... 066PA, vapor pressure 2.93 x 10-3PA (23 °c),m.p.3.3 ℃, relative density 1.145~1.180 (20 ℃), viscosity 0.0318~0.0329 · s(15 ℃), refractive index n25D1.5588, flash point 172 ℃. Soluble in acetone, alcohols, benzene and other organic solvents, the solubility in water for 27.5mg/L. The acid, alkali, heat, light are more stable. |
| Use | It is a broad-spectrum, systemic and selective herbicide in paddy field. It can be absorbed by the roots and shoots of weeds, and has a strong inhibitory effect on the growth point and cell mitosis of weeds, resulting in the death of weeds. It has special effects on annual grass weeds and Cyperaceae weeds, and can also control some broad-leaved weeds. Pre-treatment or seedling treatment can be used for seedling field and direct-seeding field. Before sowing, spray water with 30 ~ 50% mL/100m2 of 37.5 emulsifiable concentrate, irrigate the shallow water layer, and drain the seed after 2~3 days. When the rice seedlings grow to one leaf and one leaf to two leaves, the water was sprayed with 5% emulsifiable concentrate 22.5-30ml/100m2, and the shallow water layer was maintained for 3-4 days. |
TOBOSA - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | 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. |
| UN IDs | UN 3082 |
| WGK Germany | 3 |
| RTECS | EZ7260000 |
| HS Code | 29302000 |
TOBOSA - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | acute oral LD50 in rats is 1300mg/kg, while that in mice is 560mg/kg; Acute percutaneous LD50 in rats was 2900mg/kg; Acute inhalation of LC507.7 mg/L (1h) in rats. It has a certain irritating effect on rabbit skin and eyes. The 90-day feeding test of mice was 30mg/kg; the 2-year feeding test of rats was 100mg/kg. No accumulation effect. There was no teratogenic, carcinogenic or mutagenic effect under the test conditions. There was no abnormality in the third-generation reproduction test of rats. Quail LD507800mg/kg, wild duck LD50>10000mg/kg. White shrimp LC500.264 mg/L (96h) and carp LC50 3.6mg/L (48h). |
| use | is a broad-spectrum, internal absorption conduction, selective rice herbicide. It can be absorbed by weed roots and buds, and has a strong inhibitory effect on weed growth points and cell mitosis, causing weed death. It has special effects on annual gramineous weeds and Cyperaceae weeds, and can also control some broad-leaved weeds. The seedling field and the direct seeding field can be treated before sowing or at seedling stage. Before sowing, spray water with 50% emulsifiable concentrate 30~37.5mL/100m2, pour shallow water layer, drain water for sowing after 2~3 days, and spray water with 5% emulsifiable concentrate 22.5~30mL/100m2 to keep shallow water layer for 3~4 days when rice seedlings grow to one leaf and one leaf to two leaf. broad-spectrum herbicide, used to control barnyard grass, cattle hair grass, and three-striped grass in rice seedling fields, Honda, and direct seeding fields used as a herbicide for annual weeds in paddy fields such as barnyard grass, melon fur grass, water horse grass, and three-striped grass. It is mainly used to control weeds in paddy fields, such as cow felt, barnyard grass, etc, it can effectively control annual weeds such as duck tongue grass, melon fur grass, water horse tooth, small alkali grass, sedge, horse Tang, dry barnyard, crickets, kanmai Niang, wild oats, etc. Peanuts, soybeans, cotton, corn, sugar cane and other crops are safe. It is a broad-spectrum, internal absorption conduction, selective rice herbicide. It can be absorbed by weed roots and buds, and has a strong inhibitory effect on weed growth points and cell mitosis, causing weed death. It has special effects on annual gramineous weeds and Cyperaceae weeds, and can also control some broad-leaved weeds. The seedling field and the direct seeding field can be treated before sowing or at seedling stage. Before sowing, spray water with 50% emulsifiable concentrate 30~37.5mL/100m2, pour shallow water layer, drain water for sowing after 2~3 days, and spray water with 5% emulsifiable concentrate 22.5~30mL/100m2 to keep shallow water layer for 3~4 days when rice seedlings grow to one leaf and one leaf to two leaf. |
| Production method | Diethylamine reacts with carbon oxysulfide in toluene, and the reaction product is then condensed with p-chlorobenzyl to produce scutonium. Raw material consumption quota: toluene 1140kg/t, liquid chlorine 1200kg/t, liquid alkali 1500kg/t, coke 160kg/t, oxygen 110kg/t, sulfur 220kg/t, diethylamine (98%)420kg/t. Preparation of oxygen carbon sulfide in the synthetic route of Anhara Chemical Jinggang Workshop in Japan Coke is placed in a carbon monoxide generator, and the carbon monoxide is generated by oxygen oxidation, which is sent to the gas collection tank by water sealing and water washing, and then alkaline washing is required. Put it into the gas cabinet for standby. The molten sulfur vapor is stored in heat preservation and pumped to the carbon oxysulfide reactor under the liquid. Carbon monoxide is preheated into the oxygen carbon sulfide reactor, and under the action of the catalyst, the reaction temperature is maintained by electric heat to prepare oxygen carbon sulfide. Preparation of amine salt Diethylamine is mixed with solvent, and the reaction liquid is sent into the top jet absorber by the reaction tank circulating pump under stirring, and reacts with gaseous oxygen carbon sulfide until the end point, and the gas is discharged through 4 The activated carbon adsorber in series is adsorbed and emptied. The synthesis of Hecao Dan reacts the amine salt reaction solution with p-chlorobenzyl to form Hecao Dan. After water washing and stratification, most of the solvent is removed from the organic phase, and the crude oil is desolated in the form of a plate-type membrane. Other synthesis methods |
| category | pesticide |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 920 mg/kg; Oral-mouse LD50: 560 mg/kg |
| flammability hazard characteristics | Combustion produces toxic nitrogen oxides, chlorides and sulfur oxide gases |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from food raw materials storage and transportation |
| fire extinguishing agent | dry powder, foam, sand |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:05
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