Wat (wie) is pyrocatechol - definitie
CHEMICAL COMPOUND
Pyrocatechin; 1,2-Benzenediol; O-Benzenediol; O-benzenediol; O-dihydroxybenzene; 1,2-dihydroxybenzene; 1,2-benzenediol; Benzene-1,2-diol; Catechols; 2-hydroxyphenol; O-hydroxyphenol; Α-hydroxyphenol; Pyrocatechol; Katechol; Pyrokatechol; Catecholate; Pyro-catechin; Dioxolene; O-diphenol; Pyrocathecic acid
![[[Catechin]], a component of tea.](https://commons.wikimedia.org/wiki/Special:FilePath/Catechin structure.svg?width=200 "[[Catechin]], a component of tea.")
![[[Piceatannol]], an antioxidant found in some red wines.](https://commons.wikimedia.org/wiki/Special:FilePath/Piceatannol.svg?width=200 "[[Piceatannol]], an antioxidant found in some red wines.")
![poison ivy]] (R = (CH2)14CH3, (CH2)7CH=CHCH2CH=CHCH2CH=CH2, and others)](https://commons.wikimedia.org/wiki/Special:FilePath/Urushiol.svg?width=200 "poison ivy]] (R = (CH2)14CH3, (CH2)7CH=CHCH2CH=CHCH2CH=CH2, and others)")
![[[catecholamine]]s, drugs imitating them (such as [[MDMA]]), [[hormone]]s/[[neurotransmitter]]s](https://commons.wikimedia.org/wiki/Special:FilePath/catecholamine.svg?width=200 "[[catecholamine]]s, drugs imitating them (such as [[MDMA]]), [[hormone]]s/[[neurotransmitter]]s")
![[[Quercetin]], which is found in many foods.](https://commons.wikimedia.org/wiki/Special:FilePath/Quercetin.svg?width=200 "[[Quercetin]], which is found in many foods.")
Pyrocatechin
·noun A white crystalline substance, C6H4(OH)2, of the phenol series, found in various plants;
- so called because first obtained by distillation of gum catechu. Called also catechol, oxyphenol. ·etc.
Ethylenediamine pyrocatechol
ETCHANT SOLUTION
Ethylene Diamine Pyrocatechol
Ethylenediamine pyrocatechol (EDP), also known as ethylenediamine-pyrocatechol-water (EPW), is an anisotropic etchant solution for silicon. A typical formulation consists of ethylenediamine, pyrocatechol, pyrazine and water.
Wikipedia
Catechol
Catechol ( or ), also known as pyrocatechol or 1,2-dihydroxybenzene, is a toxic organic compound with the molecular formula C6H4(OH)2. It is the ortho isomer of the three isomeric benzenediols. This colorless compound occurs naturally in trace amounts. It was first discovered by destructive distillation of the plant extract catechin. About 20,000 tonnes of catechol are now synthetically produced annually as a commodity organic chemical, mainly as a precursor to pesticides, flavors, and fragrances.
Catechol occurs as feathery white crystals that are very rapidly soluble in water.
