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  2. Arsenic trioxide - Wikipedia

    en.wikipedia.org/wiki/Arsenic_trioxide

    Long-term ingestion of arsenic trioxide either in drinking water or as a medical treatment can lead to skin cancer. Reproductive problems (high incidences of miscarriage, low birth weight, congenital deformations) have also been indicated in one study of women exposed to arsenic trioxide dust as employees or neighbours of a copper foundry.

  3. Marsh test - Wikipedia

    en.wikipedia.org/wiki/Marsh_test

    Any arsenic present would appear as arsenic trioxide and then could be subjected to Metzger's test. The most common test (and used even today in water test kits) was discovered by Samuel Hahnemann. It would involve combining a sample fluid with hydrogen sulfide (H 2 S) in the presence of hydrochloric acid (HCl).

  4. Arsenic compounds - Wikipedia

    en.wikipedia.org/wiki/Arsenic_compounds

    It oxidises readily in air to form arsenic trioxide and water, and analogous reactions take place with sulfur and selenium instead of oxygen. [3] 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.

  5. Medical use of arsenic trioxide - Wikipedia

    en.wikipedia.org/.../Medical_use_of_arsenic_trioxide

    Arsenic trioxide also affects the intracellular concentration of glutathione, which is a crucial component of the redox system (it removes radicals and reduces hydrogen peroxide). It also participates, along with peroxidase and catalase , in regulating the levels of reactive oxygen species. [ 46 ]

  6. Arsenic - Wikipedia

    en.wikipedia.org/wiki/Arsenic

    It oxidises readily in air to form arsenic trioxide and water, and analogous reactions take place with sulfur and selenium instead of oxygen. [34] 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.

  7. Arsenic poisoning - Wikipedia

    en.wikipedia.org/wiki/Arsenic_poisoning

    Low potassium levels in the cells increases the risk of experiencing a life-threatening heart rhythm problem from arsenic trioxide. [citation needed] Arsenic in cells clearly stimulates the production of hydrogen peroxide (H 2 O 2). When the H 2 O 2 reacts with certain metals such as iron or manganese it produces a highly reactive hydroxyl radical.

  8. Arsenic biochemistry - Wikipedia

    en.wikipedia.org/wiki/Arsenic_biochemistry

    Arsenic (III) binding sites usually use thiol groups of cysteine residues. The catalysis involves thiolates of Cys72, Cys174, and Cys224. In an SN2 reaction, the positive charge on the SAM sulfur atom pulls the bonding electron from the carbon of the methyl group, which interacts with the arsenic lone pair to form an As−C bond, leaving SAH. [31]

  9. Arsenite - Wikipedia

    en.wikipedia.org/wiki/Arsenite

    In chemistry, an arsenite is a chemical compound containing an arsenic oxyanion where arsenic has oxidation state +3. Note that in fields that commonly deal with groundwater chemistry, arsenite is used generically to identify soluble As III anions. IUPAC have recommended that arsenite compounds are to be named as arsenate(III), for example ...

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