FComEx: Phosphoric acid (PC000812)

Record Information

Version

1.0

Creation date

2015-10-09 22:32:52 UTC

Update date

2017-01-19 02:36:37 UTC

FoodComEx ID

PC000812

FoodDB Record

FDB013380

Chemical Information

Name

Phosphoric acid

Description

Phosphoric acid or free phosphate, also known as H3PO4, belongs to the class of inorganic compounds known as non-metal phosphates. These are inorganic non-metallic compounds containing a phosphate as its largest oxoanion. Phosphate is a moderately acidic compound (based on its pKa). When phosphorous pentoxide is dissolved in water it produces phosphoric acid. Phosphoric acid is a colorless, odorless phosphorus-containing inorganic acid with a bland taste. Phosphate, in the form of phosphoric acid, phosphate ions (H2PO4 or HPO4 ‚Äì at neutral pH) or various salts of phosphate, exists in all living species, ranging from bacteria to plants to humans. Free orthophosphate anions can be released by the hydrolysis of the phosphoanhydride bonds in ATP or ADP. These phosphorylation and dephosphorylation reactions are the immediate storage and source of energy for many metabolic processes. ATP and ADP are often referred to as high-energy phosphates. An important occurrence of phosphates in biological systems is as the structural material of bone and teeth. These structures are made of crystalline calcium phosphate in the form of hydroxyapatite. Vitamin D, which helps stimulate bone growth and stability, stimulates phosphate absorption, an effect reported to precede its action on calcium ion transport. Phosphate supplementation of the diet of rodents has been shown to lead to reduction in the incidence of dental caries and different phosphates have different powers in reducing the cariogenic potential of the carbohydrates in a diet. Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas and jams, providing a tangy or sour taste. Soft drinks containing phosphoric acid, including Coca-Cola, are sometimes called phosphate sodas or phosphates. Phosphoric acid also has the potential to contribute to the formation of kidney stones, especially in those who have had kidney stones previously (PMID:25364887). Phosphate, in the form of phosphoric acid, is one of the simple acids found in cannabis plant (PMID: 6991645).

CAS Number

7664-38-2

Structure

MOL SDF 3D-SDF PDB SMILES InChI View 3D Structure

Synonyms

Synonym	Source
[PO(OH)3]	ChEBI
Acide orique	ChEBI
Acidum oricum	ChEBI
Diate tetrasodium	HMDB
E338	db_source
FEMA 2900	db_source
H3PO4	ChEBI
Marphos	HMDB
NFB	HMDB
o-Phosphoric acid	biospider
Orate	Generator
oric acid	ChEBI
Orsaeure	ChEBI
Orsaeureloesungen	ChEBI
ortho- Oric acid	HMDB
orthoate	Generator
orthoic acid	Generator
orthooric acid	ChEBI
Orthophosphoric acid	db_source
Sodium pyroate	HMDB
Sodium pyroate decahydrate	HMDB
Sodium pyroate decahydrate biochemica	HMDB
Sonac	HMDB
Tetra-sodium pyroate	HMDB
Tetrasodium pyroate 10-hydrate	HMDB
Tetrasodium pyroate decahydrate	HMDB
Trihydroxo oxophosphorus(V)	db_source
White oric acid	HMDB

Chemical Formula

H3O4P

IUPAC name

phosphoric acid

InChI Identifier

InChI=1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)

InChI Key

NBIIXXVUZAFLBC-UHFFFAOYSA-N

Isomeric SMILES

OP(O)(O)=O

Average Molecular Weight

97.9952

Monoisotopic Molecular Weight

97.976895096

Chemical Taxonomy

Description

Belongs to the class of inorganic compounds known as non-metal phosphates. These are inorganic non-metallic compounds containing a phosphate as its largest oxoanion.

Kingdom

Inorganic compounds

Super Class

Homogeneous non-metal compounds

Class

Non-metal oxoanionic compounds

Sub Class

Non-metal phosphates

Direct Parent

Non-metal phosphates

Alternative Parents