Is lindane toxic?
Exposure to lindane may occur from eating contaminated food or by breathing air contaminated during formulation or use. Lindane is quite toxic to humans. The acute (short-term) effects of lindane through inhalation exposure in humans consist of irritation of the nose and throat and effects on the blood.
What is chemical name of C6Cl6?
Hexachlorobenzene
Hexachlorobenzene, or perchlorobenzene, is an organochloride with the molecular formula C6Cl6. It is a fungicide formerly used as a seed treatment, especially on wheat to control the fungal disease bunt. It has been banned globally under the Stockholm Convention on Persistent Organic Pollutants.
How do you make hexachlorobenzene?
The method of preparing hexachlorobenzene comprising heating benzene hexachloride to a temperature of at least 230 C. in the presence of activated carbon while passing chlorine through the reaction mixture in an amount such that all of the chlorine is not reacted.
What is hexachlorobenzene used for?
Hexachlorobenzene has been used primarily as a fungicide or biocide. Organochlorine pesticides can enter the environment after pesticide applications, disposal of contaminated wastes into landfills, and releases from manufacturing plants that produce these chemicals.
Is lindane still in use?
The only remaining U.S. use of lindane is for prescription shampoos and lotion treatments for head lice and scabies, which are regulated by the Food and Drug Administration, not the EPA. Lindane prescriptions have been banned in California since 2002, and most U.S. doctors no longer prescribe them.
When was lindane banned in the US?
In 2002, California banned pharmaceutical use of lindane because of concerns about water quality, as lindane treatment for head lice and scabies was found to be a significant factor adversely affecting wastewater quality.
What is HCH called?
Hexachlorocyclohexane (HCH), formally known as benzene hexachloride (BHC), is a synthetic chemical that exists in eight chemical forms called isomers. The different isomers are named according to the position of the hydrogen atoms in the structure of the chemical.
Can you still buy lindane?
Currently, lindane may only be sold in the United States for use as a second-line treatment for head lice and scabies.
Why is lindane no longer recommended?
Lindane is poisonous. Keep it away from the mouth because it is harmful and may be fatal if swallowed. Use lindane only as directed by your doctor. Do not use more of it, do not use it more often, and do not use it for a longer time than your doctor ordered.
Is hexachlorobenzene banned in the US?
Although hexachlorobenzene has been banned in the United States since 1966 and globally under the Stockholm Convention since 2004, it is ubiquitous in the environment.
Is hexachlorobenzene still used today?
Hexachlorobenzene (HCB) was used from the 1930’s to the 1970’s in the U.S. primarily as a fungicide and seed treatment until the U.S. EPA cancelled its use in 1984.