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Sodium arsenate is the inorganic compound with the formula Na 3 AsO 4. ... The anion AsO 4 3-exists at high pH, but below pH 11.5, it converts to HAsO 4 2- ...
Oxygenated waters have a high pe value and arsenate species dominate. In deoxygenated water, with low pe, arsenite species dominate. [16] [17] Depending on the pH, arsenate can be found as trihydrogen arsenate (that is arsenic acid H 3 AsO 4), dihydrogen arsenate (H 2 AsO − 4), hydrogen arsenate (HAsO 2− 4), or arsenate (AsO 3− 4). [18]
Sodium dihydrogen arsenate is the inorganic compound with the formula NaH 2 AsO 4. Related salts are also called sodium arsenate, including Na 2 HAsO 4 (disodium hydrogen arsenate) and NaH 2 AsO 4 (sodium dihydrogen arsenate). Sodium dihydrogen arsenate is a colorless solid that is highly toxic. The salt is the conjugate base of arsenic acid: H ...
The other sodium arsenates are NaH 2 AsO 4 and Na 3 AsO 4, the latter being called sodium arsenate. Disodium hydrogen arsenate is highly toxic. The salt is the conjugate base of arsenic acid. It is a white, water-soluble solid. [1] Being a diprotic acid, its acid-base properties is described by two equilibria: H 2 AsO − 4 + H 2 O ⇌ HAsO 2−
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 H 3 AsO 4.More descriptively written as AsO(OH) 3, this colorless acid is the arsenic analogue of phosphoric acid.
Phosphine – PH 3; Phosphomolybdic acid – H 3 PMo 12 O 40; Phosphoric acid – H 3 PO 4; ... Sodium arsenate – H 24 Na 3 AsO 16; Sodium azide – NaN 3; Sodium ...
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.
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]