File:Phosphoric-acid-2D-dimensions.svg · Wikimedia Commons · See Wikimedia Commons
phosphoric acid
Sign in to saveAlso known as orthophosphoric acid, phosphoric(V) acid, white phosphoric acid, [PO(OH)3], H3PO4, E338, naval jelly
chemical compound
OverviewAI-generated
Phosphoric acid is a chemical compound with the formula H₃PO₄. It has a molecular mass of 97.977 and a density of 1.87. The substance melts at 108 and boils at 415. Its vapor pressure is 0.03, and its pKa is 2.12. The canonical SMILES notation for the compound is OP(=O)(O)O.
Safety data indicates an immediately dangerous to life or health level of 1000. The time-weighted average exposure limit is 1, while the short-term exposure limit is 3. In terms of molecular properties, phosphoric acid has a charge of 0, three hydrogen bond donors, and four hydrogen bond acceptors. Its xlogp value is -2.1, and its topological polar surface area is 77.8.
Synthesized by Vinony from 27 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Chemical data
- Formula
- H3O4P
- Molecular weight
- 97.995 g/mol
- IUPAC name
- phosphoric acid
- SMILES
- OP(=O)(O)O
- InChIKey
- NBIIXXVUZAFLBC-UHFFFAOYSA-N
- XLogP
- -2.1
- Polar surface area
- 77.8 Ų
- H-bond donors
- 3
- H-bond acceptors
- 4
- Formal charge
- 0
via PubChem
Research
146,103 papers- Phosphoric acid/phosphates.Journal of applied toxicology : JAT · 1992Von Burg RDOI: 10.1002/jat.2550120416
- Safety Assessment of Phosphoric Acid and Its Salts as Used in Cosmetics.International journal of toxicology · 2021Johnson W Jr, Boyer I, Bergfeld WF et al.DOI: 10.1177/10915818211014499
- Effect of phosphoric acid containing polyvinylpyrrolidone as protective etchant for dentin bonding.The Journal of prosthetic dentistry · 2024Wang Y, Ding N, Zhang ZDOI: 10.1016/j.prosdent.2024.01.019
- Phosphoric Acid Catalyzed Electrophilic Thiocyanation of Indoles: Access to SCN-Containing Aryl-Indole Compounds.Chemistry, an Asian journal · 2022Ye AH, Li ZH, Ding TM et al.DOI: 10.1002/asia.202200256
- Recent Advances in First-Row Transition Metal/Chiral Phosphoric Acid Combined Catalysis.ReviewTopics in current chemistry (Cham) · 2019Fang GC, Cheng YF, Yu ZL et al.DOI: 10.1007/s41061-019-0249-0
- Chiral Phosphoric Acid-Catalyzed Enantioselective Aza-Friedel-Crafts Addition of Naphthols with Isatin-Derived Ketimines.The Journal of organic chemistry · 2022Duan M, Chen J, Wang T et al.DOI: 10.1021/acs.joc.2c01659
- Phosphoric Acid Versus Biogenic Mineralization of Hydroxyapatite and Carbonate Apatite in Relation to Infection-Induced Urinary Stones: Physical, Chemical and Microbiological Aspects.ChemPlusChem · 2025Prywer J, Mielniczek-Brzóska E, Torzewska ADOI: 10.1002/cplu.202400712
- Recent Progress in Asymmetric Relay Catalysis of Metal Complex with Chiral Phosphoric Acid.ReviewTopics in current chemistry (Cham) · 2019Wang PS, Chen DF, Gong LZDOI: 10.1007/s41061-019-0263-2
via PubMed
Wikidata facts
- Has part
- hydrogen
- Mass
- 97.977
- Has use
- acidity regulator
Show 16 more facts
- Commons category
- Phosphoric acid
- found in taxon
- Arabidopsis thaliana
- canonical SMILES
- OP(=O)(O)O
- NIOSH Pocket Guide ID
- 0506
- density
- 1.87
- immediately dangerous to life or health
- 1000
- melting point
- 42.4
- boiling point
- 407
- vapor pressure
- 0.03
- time-weighted average exposure limit
- 1
- short-term exposure limit
- 3
- pKa
- 2.12
- chemical formula
- H₃PO₄
- conjugate base
- dihydrogenphosphate ion
- subject has role
- dental material
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
Sources (7)
via Wikidata · CC0
~12 min read
Encyclopedic overview
Names
IUPAC name Phosphoric acid
Excerpted from Wikipedia’s “phosphoric acid” article, available under the CC BY-SA 4.0 licence.
Gallery (6)
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