Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Three bottles of arsenic acid from the Great Exhibition: impure, pure and distilled.
Arsenic acid or arsoric acid is the chemical compound with the formula H3AsO4. 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. Its hemihydrate form (2H3AsO4·H2O) does form stable crystals. Crystalline samples dehydrate with condensation at 100 °C.[2]
^"Arsenic acid".
^Holleman, A. F.; Wiberg, E. (2001). Inorganic Chemistry. San Diego: Academic Press. ISBN 0-12-352651-5.
Arsenicacid or arsoric acid is the chemical compound with the formula H3AsO4. More descriptively written as AsO(OH)3, this colorless acid is the arsenic...
Arsenic makes arsenicacid with concentrated nitric acid, arsenous acid with dilute nitric acid, and arsenic trioxide with concentrated sulfuric acid;...
Arsenic poisoning (or arsenicosis) is a medical condition that occurs due to elevated levels of arsenic in the body. If arsenic poisoning occurs over...
with the arsenic. Arsenic contaminated water typically contains arsenous acid and arsenicacid or their derivatives. Their names as "acids" is a formality;...
Arsanilic acid, also known as aminophenyl arsenicacid or aminophenyl arsonic acid, is an organoarsenic compound, an amino derivative of phenylarsonic acid whose...
molecule consisting of three hydroxyl groups bonded to arsenic. The 1H NMR spectrum of arsenous acid solutions consists of a single signal consistent with...
the environment and human health. The parent compounds are arsane and arsenicacid. Despite their toxicity, organoarsenic biomolecules are well known. Surprising...
as ozone, hydrogen peroxide, and nitric acid does it yield arsenic pentoxide, As 2O 5 or its corresponding acid: 2 HNO3 + As2O3 + 2 H2O → 2 H3AsO4 + N2O3...
distilling nitric acid from a mixture of potassium nitrate and arsenic trioxide. Previously Paracelsus heated a mixture of arsenic trioxide and potassium...
Arsenic biochemistry refers to biochemical processes that can use arsenic or its compounds, such as arsenate. Arsenic is a moderately abundant element...
putida. Oxidative coupling of gallic acid with arsenicacid, permanganate, persulfate, or iodine yields ellagic acid, as does reaction of methyl gallate...
arsenicacid H3AsO4), dihydrogen arsenate (H2AsO−4), hydrogen arsenate (HAsO2−4), or arsenate (AsO3−4). Trihydrogen arsenate is also known as arsenic...
violent, is typically conducted in the presence of ferrous sulfate. Arsenicacid may be used instead of nitrobenzene and the former is better since the...
the first person to synthesize ellagic acid by heating gallic acid with arsenicacid or silver oxide. Ellagic acid is found in oak species such as the North...
An oxyacid, oxoacid, or ternary acid is an acid that contains oxygen. Specifically, it is a compound that contains hydrogen, oxygen, and at least one...
In chemistry, an acid dissociation constant (also known as acidity constant, or acid-ionization constant; denoted K a {\displaystyle K_{a}} ) is a quantitative...
with a hydroxamic acid ("HA"), for example: GaAs + H 2O 2 + "HA" → "GaA" complex + H 3AsO 4 + 4 H 2O This reaction produces arsenicacid. GaAs can be used...
dissolved in nitric acid, it releases elemental sulfur. When arsenopyrite is heated, it produces sulfur and arsenic vapor. With 46% arsenic content, arsenopyrite...
As2O3 ("white arsenic") and As2O5 which are hygroscopic and readily soluble in water to form acidic solutions. Arsenic(V) acid is a weak acid and the salts...
SO3 + H2O Cacodylic acid is highly toxic by ingestion, inhalation, or skin contact. The U.S. EPA states that all forms of arsenic are a serious risk to...
Arsenic trisulfide is the inorganic compound with the formula As2S3. It is a dark yellow solid that is insoluble in water. It also occurs as the mineral...
dodecahydrate Na3AsO4.12H2O. The compound can be obtained by neutralizing arsenicacid: H3AsO4 + 3 NaOH → Na3AsO4 + 3 H2O The salt (as its dodecahydrate) is...
-ɡər/ ree-AL-gar, -gər), also known as ″arsenic blende″, ″ruby sulphur″ or ″ruby of arsenic″, is an arsenic sulfide mineral with the chemical formula...
3 BCl3 As reported in 1775, Carl Scheele reduced arsenic(III) oxide with zinc in the presence of acid. This reaction is a prelude to the Marsh test. Alternatively...
acid, copper oxide, and arsenicacid (USDA, 1980), with pH 1.6–2.5. The mixture is infused into wood at high pressure. In the treated wood, arsenic is...
Scheele discovered a way to change arsenic trioxide to garlic-smelling arsine gas (AsH3), by treating it with nitric acid (HNO3) and combining it with zinc...
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