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  2. Arsenic - Wikipedia

    en.wikipedia.org/wiki/Arsenic

    Arsenic disrupts ATP production through several mechanisms. At the level of the citric acid cycle, arsenic inhibits lipoic acid, which is a cofactor for pyruvate dehydrogenase. By competing with phosphate, arsenate uncouples oxidative phosphorylation, thus inhibiting energy-linked reduction of NAD+, mitochondrial respiration and ATP synthesis ...

  3. Arsenic compounds - Wikipedia

    en.wikipedia.org/wiki/Arsenic_compounds

    Arsenic forms colorless, odorless, crystalline oxides As 2 O 3 ("white arsenic") and As 2 O 5 which are hygroscopic and readily soluble in water to form acidic solutions. Arsenic(V) acid is a weak acid and the salts are called arsenates, [5] the most common arsenic contamination of groundwater, and a problem that affects

  4. Arsenic acid - Wikipedia

    en.wikipedia.org/wiki/Arsenic_acid

    Arsenic acid or arsoric acid is the chemical compound with the formula H 3 AsO 4. More descriptively written as AsO(OH) 3, this colorless acid is the arsenic analogue of phosphoric acid. Arsenate and phosphate salts behave very similarly. Arsenic acid as such has not been isolated, but is only found in solution, where it is largely ionized.

  5. Arsine - Wikipedia

    en.wikipedia.org/wiki/Arsine

    The old (but extremely sensitive) Marsh test generates AsH 3 in the presence of arsenic. [4] This procedure, published in 1836 by James Marsh, [18] is based upon treating an As-containing sample of a victim's body (typically the stomach contents) with As-free zinc and dilute sulfuric acid: if the sample contains arsenic, gaseous arsine will ...

  6. Arsenic poisoning - Wikipedia

    en.wikipedia.org/wiki/Arsenic_poisoning

    Arsenic compounds also disrupt ATP production through several mechanisms. At the level of the citric acid cycle, arsenic inhibits pyruvate dehydrogenase and by competing with phosphate it uncouples oxidative phosphorylation, thus inhibiting energy-linked reduction of NAD+, mitochondrial respiration, and ATP synthesis. Hydrogen peroxide ...

  7. Arsenic biochemistry - Wikipedia

    en.wikipedia.org/wiki/Arsenic_biochemistry

    Arsenic biochemistry is the set of biochemical processes that can use arsenic or its compounds, ... The monomethylated acid, methanearsonic acid (CH 3 AsO(OH) ...

  8. Arsenic contamination of groundwater - Wikipedia

    en.wikipedia.org/wiki/Arsenic_contamination_of...

    Arsenic contaminated water typically contains arsenous acid and arsenic acid or their derivatives. Their names as "acids" is a formality; these species are not aggressive acids but are merely the soluble forms of arsenic near neutral pH. These compounds are extracted from the underlying rocks that surround the aquifer.

  9. Arsenic pentoxide - Wikipedia

    en.wikipedia.org/wiki/Arsenic_pentoxide

    Arsenic acid can be generated via routine processing of arsenic compounds including the oxidation of arsenic and arsenic-containing minerals in air. Illustrative is the roasting of orpiment , a typical arsenic sulfide ore: [ 7 ]