water
Chemical compound whose molecules are formed by two hydrogen atoms and one oxygen atom
Also known as dihydrogen monoxide · dihydridooxygen · hydrogen hydroxide · dihydrogen oxide · oxidane · hydrogen oxide
- Formula
- H₂O
1
- H₂O
- Mass
- 18.02 Da
- Melting point
- 0.002519°C
1
Sources- 1.“Revised Release on the Equation of State 2006 for H2O Ice Ih”web.archive.org/web/20220527094605/http://www.iapws.org/relguide/Ice-Rev2009.pdf
- , 0°C
1
Sources- 1.“Reproducibility of the Temperature of the Ice Point in Routine Measurements”web.archive.org/web/20070710041607/http://www.cstl.nist.gov/div836/836.05/papers/magnum95icept.pdf
- 0.002519°C
- Boiling point
- 99.9839°C
- , 99.9743°C
- Density
- 0.9839 g/cm³
1
- , 0.9935 g/cm³
1
- , 0.9981 g/cm³
1
- +23 more
- 0.9839 g/cm³
Overview
Chemistry
All data
440 statements · 26% with external sources · numbers in brackets are citations
- Phase point
- triple point temperature: 273.16 K · under pressure: 611.657 Pa · state of matter: liquid, solid
2
Sources- 1.Stated in CRC Handbook of Chemistry and Physics (78th edition)
- 2.“The revision of the SI—the result of three decades of progress in metrology”iopscience.iop.org/article/10.1088/1681-7575/ab0013/pdf
- critical point under pressure: 22.06 MPa · temperature: 647.14 K · state of matter: gas, liquid
1
- triple point temperature: 273.16 K · under pressure: 611.657 Pa · state of matter: liquid, solid
- Unicode character
- 💧 statement is subject of: 💧
- 🚰 statement is subject of: 🚰 · symbolizes: drinking water
- 🚱 statement is subject of: 🚱 · symbolizes: non-drinking water
- Specific heat capacity
- 4,184 joule per kilogram kelvin difference state of matter: liquid · temperature: 333 K
- 2,110 joule per kilogram kelvin difference state of matter: solid · temperature: 273 K
- 1,640 joule per kilogram kelvin difference state of matter: solid · temperature: 213 K
- 4,216 joule per kilogram kelvin difference state of matter: liquid · temperature: 373 K
- Has characteristic
- viscosity
- odorlessness
- tastelessness
- heat capacity has characteristic: large
- amphoterism
- color statement is subject of: color of water
- humidity
- hardness applies to part: ice
- Color
- turquoise statement is subject of: color of water · has immediate cause: electromagnetic absorption by water · image: SwimmingPoolAndBucket.jpg
- green statement is subject of: color of water · has immediate cause: algae
- turquoise statement is subject of: color of water · has immediate cause: rock flour · image: Rock flour from glacial melt enters headwaters at Lake Louise.jpg, Lake Pukaki NZ 2005.jpg
- colorless statement is subject of: color of water · state of matter: liquid
- white applies to part: ice · state of matter: solid
- colorless state of matter: gas
- color of water
- Dynamic viscosity
- 1.7911 millipascal second temperature: 0.01°C · under pressure: 1 standard atmosphere · state of matter: liquid
- 1.0016 millipascal second temperature: 20°C · under pressure: 1 standard atmosphere · state of matter: liquid
- 0.89 millipascal second temperature: 25°C · under pressure: 1 standard atmosphere · state of matter: liquid
- Thermal conductivity
- 0.56 watt per metre kelvin
- Mohs' hardness
- 1.5 applies to part: solid state of matter
1
- 1.5 applies to part: solid state of matter
- Refractive index
- 1.3945 temperature: 0°C · wavelength: 226.5 nm
- 1.3343 temperature: 0°C · wavelength: 589 nm
- 1.3261 temperature: 0°C · wavelength: 1,013.98 nm
- 1.3934 temperature: 20°C · wavelength: 226.5 nm
- 1.333 temperature: 20°C · wavelength: 589 nm
- 1.3252 temperature: 20°C · wavelength: 1,013.98 nm
- Safety classification and labelling
- Regulation (EC) No. 1272/2008 ghs hazard pictogram: none · ghs signal word: none · ghs hazard statement: none
1
- NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response nfpa health: 0 · nfpa fire: 0 · nfpa instability: 0
- Regulation (EC) No. 1272/2008 ghs hazard pictogram: none · ghs signal word: none · ghs hazard statement: none
- Median lethal dose (LD50)
- 90 gram per kilogram applies to taxon: Rattus · sourcing circumstances: more · route of administration: oral administration
- OpenStreetMap tag
- resource=water
- Decomposition point
- 2,200°C proportion: 0.03
- 3,000°C proportion: 0.75
- Molar enthalpy of vaporization
- 40.656 kilojoule per mole temperature: 373.15 K
1
Sources- 1.“Atmospheric Thermodynamics: Elementary Physics and Chemistry”books.google.com/books?id=1cwceZhWU6oC&pg=PA64
- 9.717 kilocalorie per mole
1
- 40.656 kilojoule per mole temperature: 373.15 K
- Part of
- food
1
- hydrolysis subject has role: reactant
1
- water channel activity subject has role: reactant
1
- cellular water homeostasis subject has role: process variable
1
- water transport subject has role: cargo
1
- water homeostasis subject has role: process variable
1
- water transmembrane transporter activity subject has role: cargo
1
- response to water subject has role: reactant
1
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- multicellular organismal water homeostasis subject has role: process variable
1
- cellular response to water stimulus subject has role: reactant
1
- river
- food
- Bulk modulus
- 2.2 MPa
- Social media followers
- 36,699(May 24, 2023) subreddit: water
- Ionization energy
- 12.61 eV
- Electric dipole moment
- 1.854 debye
- Hashtag
- water
- Name in kana
- みず native label: 水 · applies to part: modern kana usage · reason for preferred rank: most recent value
1
- みづ native label: 水 · applies to part: historical kana orthography
1
- みず native label: 水 · applies to part: modern kana usage · reason for preferred rank: most recent value
On other databases
171 identifiers linking water across the web's reference databases
- A Dictionary of Geology and Earth Sciences entry ID9114
- ABC News topic IDwater
- Amazon.com browse node16318651
- Analysis & Policy Observatory term ID20152
- Archive of Our Own tagWater
- Art & Architecture Thesaurus ID300011772
- ASC Leiden Thesaurus ID294943765
- ASHRAE refrigerant number718
- Australian Educational Vocabulary IDscot/5453
- Australian Thesaurus of Education Descriptors ID2225
- BabelNet ID00042379n
- BBC Bitesize topic IDz2rt2v4
- BBC News topic IDcrd1dm6n96et
- BBC Things IDb214dc4c-d30e-4ef7-9da3-33858396aa2b
- Bibliothèque nationale de France ID11931913j
- Biblissima authority IDQ318986
- BNCF Thesaurus ID6045
- Britannica Kids kids level article ID390625
- Britannica Kids scholars level article ID76210
- Britannica Kids students level article ID277663
- Brockhaus Enzyklopädie online IDwasser
- Cambridge Encyclopedia of Anthropology IDwater
- Canadian Encyclopedia article IDwater
- Cannabis Database ID004934
- CAS Registry Number7732-18-5
- Cathopedia article IDAcqua
- ChEBI ID15377
- ChEMBL IDCHEMBL1098659
- ChemSpider ID937
- COD ID1567346
- CosIng number31959
- Courrier international topic IDeau
- Cultureel Woordenboek IDnatuurkunde-scheikunde-en-sterrenkunde/water
- De Agostini IDàcqua
- DeCS ID23127
- Dewey Decimal Classification553.7
- Discogs artist ID4475323
- DrugBank IDDB09145
- DSSTOX compound identifierDTXCID106296
- DSSTox substance IDDTXSID6026296
- E-WV: The West Virginia Encyclopedia ID906
- EC number231-791-2
- ECHA Substance Infocard ID100.028.902
- El Moudjahid topic IDeau
- El Watan topic IDeau
- Enciclopedia dei ragazzi IDacqua
- Enciclopedia del Novecento IDacqua
- Enciclopedia dell'Arte Medievale IDacqua
- Enciclopedia della Scienza e della Tecnica IDacqua
- Enciclopedia delle scienze sociali IDacqua
- Enciclopedia Galega Universal ID80556
- Encyclopædia Britannica Online IDscience/water
- Encyclopædia Universalis IDeau-notions-de-base
- Encyclopedia of Chicago ID1324
- Encyclopedia of China (Second Edition) ID231024
- Encyclopedia of China (Third Edition) ID (2026)1tXLOi
- Encyclopedia of China (Third Edition) old ID (2021)529508
- Encyclopedia of Korean Culture IDE0019814
- Encyclopedia of the Great Plains IDwat.001
- Euronews topic IDwater
- EuroVoc ID597
- FactGrid item IDQ550744
- Fandom article IDru.apocalypse:Вода
- France 24 topic ID (French)eau
- Freebase ID/m/0838f
- Giant Bomb ID (former scheme)3055-1072
- Giant Bomb Wiki IDObjects/Water
- Gmelin number117
- GND ID4064689-0
- Golden ID (archived)Water-R68
- Google Product Taxonomy ID420
- Gran Enciclopèdia Catalana IDaigua-0
- Gran Enciclopèdia Catalana ID (former scheme)0219835
- Great Aragonese Encyclopedia ID287
- Great Norwegian Encyclopedia IDvann
- Great Russian Encyclopedia portal IDvoda-07375d
- HSDB ID8183
- Human Metabolome Database IDHMDB0002111
- IMDb keywordwater
- InChIInChI=1S/H2O/h1H2
- InChIKeyXLYOFNOQVPJJNP-UHFFFAOYSA-N
- International Standard Bible Encyclopedia IDW/water
- IPTC NewsCodemediatopic/20000437
- J9U entity ID987007551108905171
- Jewish Encyclopedia ID14793
- JSTOR topic ID (archived)water
- KBpedia IDWater
- KEGG IDD00001
- Klexikon article IDWasser
- Krugosvet article (archived)nauka_i_tehnika/himiya/VODA_LED_I_PAR.html