Category: Oxyanions

Peroxynitrite (sometimes called peroxonitrite) is an ion with the formula ONOO−. It is a structural isomer of nitrate, NO−3
In chemistry, a polyoxometalate (abbreviated POM) is a polyatomic ion, usually an anion, that consists of three or more transition metal oxyanions linked together by shared oxygen atoms to form closed
In chemistry an antimonate is a compound which contains a metallic element, oxygen, and antimony in an oxidation state of +5. These compounds adopt polymeric structures with M-O-Sb linkages. They can
In chemistry, perxenates are salts of the yellow xenon-containing anion XeO4−6. This anion has octahedral molecular geometry, as determined by Raman spectroscopy, having O–Xe–O bond angles varying bet
In chemistry tellurate is a compound containing an oxyanion of tellurium where tellurium has an oxidation number of +6. In the naming of inorganic compounds it is a suffix that indicates a polyatomic
A borate is any of several boron oxyanions, negative ions consisting of boron and oxygen, such as orthoborate [BO3]3−, metaborate [BO2]−, or tetraborate [B4O7]2−; or any salt with such anions, such as
Pseudo-oxocarbon anion
In chemistry, the term pseudo-oxocarbon anion is used to refer to a negative ion that is conceptually derived from an oxocarbon anion through replacement of one or more of the basic oxygen atoms by ch
Carbonite (ion)
The carbonite ion is the double ionized ion of dihydroxymethylidene, with the chemical formula: CO2−2. Alkali metal salts, such as Li2CO2, K2CO2, and Cs2CO2, have been observed at 15 K. Due to the lon
1,2-Bis(dicyanomethylene)squarate is a divalent anion with chemical formula C10N4O2−2 or ((N≡C−)2C=)2(C4O2)2−. It is one of the pseudo-oxocarbon anions, as it can be described as a derivative of the s
In organic chemistry, a dicarbonate, also known as a pyrocarbonate, is a compound containing the divalent [−O−(C=O)−O−(C=O)−O−] or −C2O5− functional group, which consists of two carbonate groups shari
Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and hydrogen atom held together by a single covalent bond, and carries a negative electric charge. It is an important
The arsenate ion is AsO3−4.An arsenate (compound) is any compound that contains this ion. Arsenates are salts or esters of arsenic acid.The arsenic atom in arsenate has a valency of 5 and is also know
In chemistry, a plumbate often refers to compounds that can be viewed as derivatives of the hypothetical PbO2−3 anion. The term also refers to any anion of lead or any salt thereof. So the term is vag
In chemistry, peroxycarbonate (sometimes peroxocarbonate) is a divalent anion with formula CO2−4. It is an oxocarbon anion that consists solely of carbon and oxygen. It would be the anion of a hypothe
A carbonate is a salt of carbonic acid (H2CO3), characterized by the presence of the carbonate ion, a polyatomic ion with the formula CO2−3. The word carbonate may also refer to a carbonate ester, an
In chemistry a molybdate is a compound containing an oxoanion with molybdenum in its highest oxidation state of 6. Molybdenum can form a very large range of such oxoanions which can be discrete struct
Nitrate is a polyatomic ion with the chemical formula NO−3. Salts containing this ion are called nitrates. Nitrates are common components of fertilizers and explosives. Almost all inorganic nitrates a
1,3-Bis(dicyanomethylene)squarate is a divalent anion with chemical formula C10N4O2−2 or ((N≡C−)2C=)2(C4O2)2−. It is one of the pseudo-oxocarbon anions, as it can be described as a derivative of the s
The tellurite ion is TeO2−3. A tellurite (compound), for example sodium tellurite, is a compound that contains this ion. They are typically colorless or white salts, which in some ways are comparable
In chemistry, a superoxide is a compound that contains the superoxide ion, which has the chemical formula O−2. The systematic name of the anion is dioxide(1−). The reactive oxygen ion superoxide is pa
Predominance diagram
A predominance diagram purports to show the conditions of concentration and pH where a chemical species has the highest concentration in solutions in which there are multiple acid-base equilibria. The
Oxocarbon anion
In chemistry, an oxocarbon anion is a negative ion consisting solely of carbon and oxygen atoms, and therefore having the general formula CxOn−y for some integers x, y, and n. The most common oxocarbo
In chemistry, antimonite refers to a salt of antimony(III), such as NaSb(OH)4 and NaSbO2 (meta-antimonite), which can be prepared by reacting alkali with antimony trioxide, Sb2O3. These are formally s
Peroxynitrate (or peroxonitrate) refers to salts of the unstable peroxynitric acid, HNO4. Peroxynitrate is unstable and decomposes to nitrate and dioxygen. No solid peroxynitrate salts are known. Howe
Cyanate is an anion with the structural formula [O=C=N]−, usually written OCN−. It also refers to any salt containing it, such as ammonium cyanate. It is an isomer of the much less stable fulminate an
In chemistry, hyponitrite may refer to the anion N2O2−2 ([ON=NO]2−), or to any ionic compound that contains it. In organic chemistry, it may also refer to the group −O−N=N−O−, or any organic compound
In chemistry, peroxydicarbonate (sometimes peroxodicarbonate) is a divalent anion with the chemical formula C2O2−6. It is one of the oxocarbon anions, which consist solely of carbon and oxygen. Its mo
The nitrite ion has the chemical formula NO−2. Nitrite (mostly sodium nitrite) is widely used throughout chemical and pharmaceutical industries. The nitrite anion is a pervasive intermediate in the ni
In chemistry, germanate is a compound containing an oxyanion of germanium. In the naming of inorganic compounds it is a suffix that indicates a polyatomic anion with a central germanium atom, for exam
In chemistry, plumbite is the PbO2−2 oxyanion or hydrated forms, or any salt containing this anion. In these salts, lead is in the oxidation state +2. It is the traditional term for the IUPAC name plu
Fulminates are chemical compounds which include the fulminate ion (CNO−, C−≡N+−O−). The fulminate ion is a pseudohalic ion because its charge and reactivity are similar to those of the halogens. Due t
2-(Dicyanomethylene)croconate is a divalent anion with chemical formula C8N2O2−4 or ((N≡C−)2C=)(C5O4)2−. It is one of the pseudo-oxocarbon anions, as it can be described as a derivative of the crocona
A metaborate is an anion (negative ion) consisting of boron and oxygen, with empirical formula BO−2; or any salt with such anions, such as sodium metaborate, Na+[BO2]− or Ca2+([BO2]−)2. It is one of t
Orthonitrate is a tetrahedral oxoanion of nitrogen with the formula NO3−4. It was first identified in 1977 and is currently known in only two compounds, sodium orthonitrate (Na3NO4) and potassium orth
Thiocarbonate describes a family of anions with the general chemical formula CS3−xO2−x (x = 0, 1, or 2): * for x = 2 it is monothiocarbonate ion CO2S2− * for x = 1 it is dithiocarbonate ion COS2−2
An oxyanion, or oxoanion, is an ion with the generic formula AxOz−y (where A represents a chemical element and O represents an oxygen atom). Oxyanions are formed by a large majority of the chemical el
A pyrosilicate is a type of chemical compound; either an ionic compound that contains the pyrosilicate anion Si2O6−7, or an organic compound with the hexavalent ≡O3Si-O-SiO3≡ group. The anion is also
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 use
Stannite (ion)
The stannite ion is [Sn(OH)3]−, or similar. Stannite ion can be formed by adding strong base to stannous hydroxide. Stannite ion is a strong reducing agent; also, it may disproportionate to tin metal