What is captafol used for?
Captafol is a fungicide. It is used to control almost all fungal diseases of plants except powdery mildews. It is believed to be a human carcinogen, and production for use as a fungicide in the United States stopped in 1987.
What are chlorinated pesticides?
Chlorinated pesticides are a small but diverse group of artificially produced chemicals characterized by a cyclic structure and a variable number of chlorine atoms. Most members of the group are resistant to environmental degradation and relatively inert toward acids, bases, oxidation, reduction, and heat.
What is Iupac name of captafol?
Chemical Name: cis-N-(I, 1,2,2,-Tetrachloroethylthio)-4-cyclohexene-I,2-dicarboximide. CAS Number: 2425-06-1 (1) Molecular Weight: 349.1.
Which pesticides are the most persistent?
Among the pesticide groups (Table 7.1), organochlorines are considered as the most persistent pesticides in the environment as they contain more than five chlorine atoms in each molecule that poses the degradation process very slow.
Which technique is used to determine captafol given sample?
Gas Chromatography Mass Spectrometry (GCMS)
Which of the following is chlorinated insecticide?
Chlorinated hydrocarbon insecticides are fat soluble. They can last for a long time in the environment and contribute to long-term clinical toxicity. These organochlorine insecticides include aldrin, chlordane, dichlorodiphenyltrichloroethane (DDT), endrin, heptachlor, chlordecone (Kepone), and lindane.
What are chlorinated hydrocarbons used for?
What Are Chlorinated Hydrocarbons? Chlorinated hydrocarbons are chemical compounds of chlorine, hydrogen, and carbon atoms only. Many of them form the building blocks of other chemical products such as pharmaceuticals, plastics, and solvents.
Are chlorinated hydrocarbons harmful?
Chlorinated hydrocarbons are of major toxicologic concern, and many (eg, DDT [dichloro-diphenyl-trichloroethane] and chlordane) have been banned from commercial use because they persist in the environment and accumulate in biological systems.
What are organic chlorine pesticides?
Organochlorine pesticides (OCPs) are an organic compound with highly toxic, refractory and easily residual characteristics, They were used in large quantities as pesticides in China’s agricultural production process, resulting in large amounts of soil residues and groundwater permeation from irrigation.
Why chlorine based pesticides are banned in certain countries?
Pesticides and Herbicides: Types of Pesticide Although these compounds were widely used in the 1940s in large quantities, they were banned in developed countries in the 1970s because of their high persistence in the environment and their harmful effects in human health.
What is an example of chlorinated hydrocarbon?
The chlorinated hydrocarbons were developed beginning in the 1940s after the discovery (1939) of the insecticidal properties of DDT. Other examples of this series are BHC, lindane, Chlorobenzilate, methoxychlor, and the cyclodienes (which include aldrin, dieldrin, chlordane, heptachlor, and endrin).
What are the types of organochlorine?
Organochlorine insecticides include dichlorodiphenyltrichloroethane (DDT); cyclodienes such as chlordane, dieldrin, aldrin, endrin, and heptachlor; caged structures such as mirex and chlordecone; and others. Sodium channel activation is believed to be the insecticidal mechanism of action.
What is carbamate pesticide?
Carbamates are used as sprays or baits to kill insects by affecting their brains and nervous systems. They are used on crops and in the home to kill cockroaches, ants, fleas, crickets, aphids, scale, whitefly, lace bugs and mealy bugs. Some carbamates control mosquitoes.
Why is chlorine banned?
The move to ban all uses of chlorine centres around the theory that some chlorinated compounds masquerade as hormones when ingested, falsifying the chemical signals sent by the body to the sexual organs.