What is gamma isomer?
Lindane, also known as gamma-hexachlorocyclohexane (γ-HCH), gammaxene, Gammallin and sometimes incorrectly called benzene hexachloride (BHC), is an organochlorine chemical and an isomer of hexachlorocyclohexane that has been used both as an agricultural insecticide and as a pharmaceutical treatment for lice and scabies …
Which isomer of hexachlorocyclohexane is having highest insecticidal activity?
The insecticidal activity is primarily attributed to the gamma isomer; however, HCH is banned in most countries, and in the EU it has been banned since 1981.
Which isomer of benzene is known as lindane?
Lindane is the gamma-isomer of benzene hexachloride, a colorless to white colored, synthetic, crystalline solid with a slight musty odor that emits toxic fumes of hydrochloric acid and other chlorinated compounds when heated to decomposition. Lindane is used as an insecticide for hardwood logs, lumber, and crops.
What is the name of HCH?
Chemistry. Lindane, the gamma isomer of the hexachlorocyclohexane (HCH, C6H6Cl6) is an organochlorine compound.
What is gamma chlordane?
Chlordane, or chlordan, was an organochlorine compound used as a pesticide. It is a white solid. Like other chlorinated cyclodiene insecticides, chlordane is classified as an organic pollutant hazardous for human health.
What is the gamma isomer of BHC called as?
Which conformation of C6H6Cl6 is most powerful insecticide?
-The above conformer which acts as an insecticide is known as lindane or gammexane. -The confirmation in which the compound is the most powerful insecticide is aaaeee.
Which isomer of benzene hexachloride carries insecticidal properties?
Benzene hexachloride was first prepared in 1825; the insecticidal properties were identified in 1944 with the γ-isomer (gamma-isomer), which is about 1,000 times more toxic than any of the other diastereomers formed in the reaction.
What is the chemical name of lindane?
Hexachlorocyclohexane (HCH) is a manufactured chemical that exists in eight chemical forms called isomers. One of these forms, gamma-HCH (or γ-HCH, commonly called lindane) is produced and used as an insecticide on fruit, vegetables, and forest crops.
How is lindane made?
Lindane is prepared by treating chlorine with benzene in the presence of sunlight and in the absence of oxygen as well as substitution catalysts.
What is HCH pesticide?
Summary: Hexachlorocyclohexane (HCH) is a manufactured chemical that exists in eight chemical forms called isomers. Technical-grade HCH was used as an insecticide in the United States and typically contained 10-15% gamma-HCH as well as the alpha (α), beta (β), delta (δ), and epsilon (ε) forms of HCH.
How does chlordane affect human health?
Swallowing small amounts or breathing air containing high concentrations of chlordane vapors can cause a variety of nervous system effects, including headaches, irritation, confusion, weakness, and vision problems, as well as upset stomach, vomiting, stomach cramps, diarrhea, and jaundice.
What is the chemical code for Gamma benzene hexachlorocyclohexane?
Gamma benzene hexachloride; Gamma-BHC; Gamma-hexachlorocyclohexane; Lindane; 1,2,3,4,5,6-hexachlorocyclohexane; EPA Pesticide Code: 009001 Insecticide, miticide. Agricultural use in the US ended 2007; the Stockholm Convention (2009) banned production and agricultural use, but pharmaceutical use is allowed until 2015.
Which is the correct name for hexachlorocyclohexane or T-BHC?
delta -hexachlorocyclohexane, δ-HCH, or δ-BHC (CAS RN: 319-86-8) technical hexachlorocyclohexane, t-HCH, or t-BHC (CAS RN: 608-73-1), a mixture of isomers α-Hexachlorocyclohexane, the dextrorotatory enantiomer α-Hexachlorocyclohexane, the levorotatory enantiomer
Is the hexachlorocyclohexane isomer poisonous or pesticidal?
It is sometimes erroneously called ” benzene hexachloride ” (BHC). They have been used as models for analyzing the effects of different geometric positions of the large atoms with dipolar bonds on the stability of the cyclohexane conformation. The isomers are poisonous, pesticidal, and persistent organic pollutants, to varying degrees.
How many carbons are in a hexachlorocyclohexane ( HCH ) ring?
Hexachlorocyclohexane (HCH) is any of several polyhalogenated organic compounds consisting of a six-carbon ring with one chlorine and one hydrogen attached to each carbon.