Name | metam-sodium |
Synonyms | SMDC VPM(R) SMDC(R) N869(R) TRIMATON(R) metam-sodium Metham Sodium sodium methyldithiocarbamate SODIUM METHYL DITHIOCARBAMATE Sodium monomethyldithiocarbamate sodium n-methylaminodithioformate sodium (methyldisulfanyl)carbamate |
CAS | 137-42-8 |
EINECS | 205-293-0 |
InChI | InChI=1/C2H5NO2S2.Na/c1-6-7-3-2(4)5;/h3H,1H3,(H,4,5);/q;+1/p-1 |
Molecular Formula | C2H6NNaS2 |
Molar Mass | 131.19 |
Density | 1.2[at 20℃] |
Boling Point | 110°C |
Water Solubility | 72.2 g/100 mL at 20 ºC |
Vapor Presure | 6 x 10-4 Pa (25 °C; free acid) |
Appearance | Liquid |
Storage Condition | APPROX -18°C |
Use | It is a soil disinfectant with fumigation effect, which is suitable for the control of nematodes in peanut, cotton, soybean, potato, melon and fruit and other crops |
Risk Codes | R22 - Harmful if swallowed R31 - Contact with acids liberates toxic gas R34 - Causes burns R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R43 - May cause sensitization by skin contact |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 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 2811 |
RTECS | FC2100000 |
HS Code | 29302000 |
Hazard Class | 6.1(b) |
Packing Group | III |
Toxicity | LD50 oral in rabbit: 320mg/kg |
LogP | -1.89 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
application | weibamu is a kind of pesticide with low toxicity, no pollution and wide application range. it is mainly used to control nematode disease and soil-borne disease, and has weeding effect. Fumigated soil can kill fungi, nematodes, weeds and insects. It can kill nodule nematodes, 100 feet, etc.; it can kill fungi including: Rhizoctonia, Pythium, Fusarium, Sclerotinia, Bottle mold, Phytophthora, Verticillium, Oak root parasites and cruciferous rhizome pathogens, etc.; weeds that can be killed include: ma Tang, Kan Mai Niang, Poa pratensis, water-laden grass, quinoa, purslane, chickweed, male English, ragweed, wild sesame, bermudagrass, stone grass, Cyperus, etc. Weibaimu is a low-toxic, non-polluting, and widely used pesticide. It is mainly used to prevent and control nematode diseases and soil-borne diseases, and has a weeding effect. Fumigated soil can kill fungi, nematodes, weeds and insects. It can kill nodule nematodes, 100 feet, etc.; it can kill fungi including: Rhizoctonia, Pythium, Fusarium, Sclerotinia, Bottle mold, Phytophthora, Verticillium, Oak root parasites and cruciferous rhizome pathogens, etc.; Killable weeds include: ma Tang, Kan Mai Niang, Poa pratensis, water-laden grass, quinoa, purslane, chickweed, male English, ragweed, wild sesame, bermudagrass, stone grass, Cyperus, etc. |
pharmacological effects | when the liquid medicine is mixed with the water in the soil, it can quickly generate a chemical gas with toxic effects on organisms-methyl isothiocyanate, which is an effective ingredient for fumigation. Methyl isothiocyanate in the liquid phase in the soil volatilizes into gas form and diffuses in the soil. This toxic gas can kill germs, nematodes and weed seeds that cause soil-borne diseases such as fusarium wilt and blight in crops under appropriate soil environmental conditions. In the high temperature season, sunlight is used to increase the soil temperature by covering plastic film for a long time to kill a variety of harmful organisms including pathogenic bacteria in the soil. |
use | wide-acting soil fumigant can effectively kill various pathogenic bacteria, diseases, pests, pests and weed seeds in soil it is a soil disinfectant with fumigation effect and is suitable for controlling crop nematodes such as peanuts, cotton, soybeans, potatoes and fruits |
category | pesticide |
toxicity classification | highly toxic |
acute toxicity | oral-rat LD50: 450 mg/kg; Oral-mouse LD50: 50 mg/kg |
flammability hazard characteristics | combustion produces toxic sulfur oxide gas |
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 |
occupational standard | STEL 0.1 mg/m3 |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |