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Spectral lines of arsenic: Other properties; ... Physical, chemical, and biological methods have been used to remediate arsenic contaminated water. [187]
Arsenic trioxide powder.. Compounds of arsenic resemble in some respects those of phosphorus which occupies the same group (column) of the periodic table.The most common oxidation states for arsenic are: −3 in the arsenides, which are alloy-like intermetallic compounds, +3 in the arsenites, and +5 in the arsenates and most organoarsenic compounds.
Gray, or metallic arsenic, pictured under an argon atmosphere. Gray arsenic, also called grey arsenic or metallic arsenic, is the most stable allotrope of the element at room temperature, and as such is its most common form. [1] This soft, brittle allotrope of arsenic has a steel gray, metallic color, and is a good conductor. [2]
In its standard state arsine is a colorless, denser-than-air gas that is slightly soluble in water (2% at 20 °C) [1] and in many organic solvents as well. [citation needed] Arsine itself is odorless, [5] but it oxidizes in air and this creates a slight garlic or fish-like scent when the compound is present above 0.5 ppm. [6]
Arsenic is a naturally occurring substance that’s found in the air, water, and soil, per the National Cancer Institute (NCI). It’s divided into organic and inorganic arsenic, with inorganic ...
Elemental arsenic is toxic, as are many of its inorganic compounds; however some of its organic compounds can promote growth in chickens. [12] The lethal dose of arsenic for a typical adult is 200 mg and can cause diarrhea, vomiting, colic, dehydration, and coma. Death from arsenic poisoning typically occurs within a day. [14]
The antileukaemic properties of white arsenic were first reported in 1878. [119] All six of the elements commonly recognised as metalloids have toxic, dietary or medicinal properties. [120] Arsenic and antimony compounds are especially toxic; boron, silicon, and possibly arsenic, are essential trace elements.
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