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Since the ends are condensed, its formula has one less H 2 O (water) than tripolyphosphoric acid. The general formula of a phosphoric acid is H n−2x+2 P n O 3n−x+1, where n is the number of phosphorus atoms and x is the number of fundamental cycles in the molecule's structure; that is, the minimum number of bonds that would have to be ...
Phosphoric acid forms esters, called organophosphates. [17] The name "orthophosphoric acid" can be used to distinguish this specific acid from other "phosphoric acids", such as pyrophosphoric acid. Nevertheless, the term "phosphoric acid" often means this specific compound; and that is the current IUPAC nomenclature.
These are primarily the esters of phosphoric acid and can be mono‑esters, di‑esters or tri‑esters depending on the number of attached organic groups (abbreviated as 'R' in the image below). In general man‑made organophosphates are most often triesters, while biological organophosphates are usually mono- or di-esters.
An ester of a carboxylic acid.R stands for any group (typically hydrogen or organyl) and R ′ stands for any organyl group.. In chemistry, an ester is a compound derived from an acid (organic or inorganic) in which the hydrogen atom (H) of at least one acidic hydroxyl group (−OH) of that acid is replaced by an organyl group (R ′). [1]
Phosphomonoesters (or phosphoric esters) are chemical compounds containing one ester bond and a phosphate group. In biology, phosphomonoesters are needed as the building blocks for the synthesis of Phospholipid cellular membranes, especially those found on neurons. [1] Enzymes which cleave these bonds are known as phosphomonoesterases, or ...
In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid, a.k.a. phosphoric acid H 3 PO 4. The phosphate or orthophosphate ion [PO 4] 3− is derived from phosphoric acid by the removal of three protons H +.
Organophosphates are esters and ester derivatives of phosphoric acid. Ester derivatives include: Ester halides (Category:Organophosphorohalidates) Ester pseudohalides (Category:Organophosphoropseudohalidates) Ester amides (Category:Phosphoramidates and Category:Phosphorodiamidates
Trimetaphosphoric acid (or cyclotriphosphoric acid), H 3 P 3 O 9 (or (HPO 3) 3, (–P(O)(OH)–O–) 3), a cyclic molecule with three acidic hydrogens. Forms the trimetaphosphate salts and esters. Metaphosphoric acid is a general term for phosphoric acids with a single cycle, (–P(O)(OH)–O–) n, whose elemental formula is HPO 3.