{{위키데이터 속성 추적}}
{{Chembox
| Name = 프로피온산
| ImageFileL1 = Propionsäure Skelett.svg
| ImageSizeL1 = 100px
| ImageNameL1 = Simplified skeletal formula
| ImageFileR1 = Propionic_acid_flat_structure.png
| ImageSizeR1 = 100px
| ImageNameR1 = Full structural formula
| ImageFileL2 = Propionic-acid-3D-balls.png
| ImageSizeL2 = 100px
| ImageNameL2 = Ball-and-stick model
| ImageFileR2 = Propionic acid spheres.png
| ImageSizeR2 = 100px
| ImageNameR2 = Space-filling model
| PIN = propanoic acid <!-- Nomenclature of Organic Chemistry – IUPAC Recommendations and Preferred Names 2013 (Blue Book) -->
| OtherNames = carboxyethane,<br />ethanecarboxylic acid,<br />ethylformic acid,<br />metacetonic acid,<br />methylacetic acid,<br />C3:0 ([[지방산#명명법|지질수]])
|Section1={{Chembox Identifiers
| index_label    = Propionic acid
| index1_label   = Propionate
| IUPHAR_ligand = 1062
| DrugBank_Ref = {{drugbankcite|correct|drugbank}}
| DrugBank = DB03766
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 30768
| SMILES = CCC(=O)O
| EINECS =   201-176-3
| CASNo = 79-09-4
| CASNo_Ref = {{cascite|correct|CAS}}
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = JHU490RVYR
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 14021
| PubChem = 1032
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 1005
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = XBDQKXXYIPTUBI-UHFFFAOYSA-N
| RTECS = UE5950000
| CASNo1 = 72-03-7
| CASNo1_Ref = {{cascite|correct|CAS}}
| UNII1 = AKW5EM890C
| UNII1_Ref = {{fdacite|correct|FDA}}
| SMILES1 = CCC(=O)[O-]
| PubChem1 = 104745
| ChemSpiderID1 = 94556
 }}
|Section2={{Chembox Properties
| C=3 | H=6 | O=2
| Appearance = 무색, 유성 액체<ref name=PGCH/>
| Odor = 맵고, 불쾌한, 썩은 냄새<ref name=PGCH/>
| Density = 0.98797 g/cm<sup>3</sup><ref name=cons3 />
| Solubility = 8.19 g/g (−28.3&nbsp;°C)<br /> 34.97 g/g (−23.9&nbsp;°C)<br /> 섞일 수 있음 (≥ −19.3&nbsp;°C)<ref name=sioc>{{서적 인용|last1 = Seidell|first1 = Atherton|last2 = Linke|first2 = William F.|year = 1919|title = Solubilities of Inorganic and Organic Compounds|url = https://archive.org/details/solubilitiesino01seidgoog|publisher = D. Van Nostrand Company|edition = 2nd|page = 569}}</ref>
| SolubleOther = [[에탄올|EtOH]], [[다이에틸 에터|에터]], [[클로로포름|CHCl<sub>3</sub>]]에 섞임<ref name=chemister>{{웹 인용|url=http://chemister.ru/Database/properties-en.php?dbid=1&id=1485 |title=chemister.ru (archived copy) |access-date=13 June 2014 |archive-url=https://web.archive.org/web/20161009114215/http://chemister.ru/Database/properties-en.php?dbid=1&id=1485 |archive-date=9 October 2016 |url-status=dead }}</ref>
| MeltingPtC = −20.5
| MeltingPt_ref =<ref name=crc>{{CRC90}}</ref>
| BoilingPtC = 141.15
| BoilingPt_ref =<ref name=crc />
| pKa = 4.88<ref name=pubchem />
| Viscosity = 1.175 c[[Poise (unit)|P]] (15&nbsp;°C)<ref name=cons3 /><br /> 1.02 cP (25&nbsp;°C)<br /> 0.668 cP (60&nbsp;°C)<br /> 0.495 cP (90&nbsp;°C)<ref name=pubchem>{{PubChemLink|1032}}</ref>
| RefractIndex = 1.3843<ref name=cons3>{{서적 인용|editor-last = Lagowski|editor-first = J.J.|year = 2012|title = The Chemistry of Nonaqueous Solvents|publisher = Elsevier|page = 362|volume = III|url = https://books.google.com/books?id=bXUSMbnCjhUC&pg=PA362|isbn = 978-0323151030}}</ref>
| SublimationConditions = −48&nbsp;°C에서 승화함<br /> Δ<sub>subl</sub>''H''<sup>
o
</sup> = 74 kJ/mol<ref name=nist />
| VaporPressure = 0.32 kPa (20&nbsp;°C)<ref name="sigma" /><br /> 0.47 kPa (25&nbsp;°C)<ref name=pubchem /><br /> 9.62 kPa (100&nbsp;°C)<ref name=nist />
| HenryConstant = 4.45·10<sup>−4</sup> L·atm/mol<ref name=pubchem />
| LogP = 0.33<ref name=pubchem />
| MagSus = -43.50·10<sup>−6</sup> cm<sup>3</sup>/mol
 }}
|Section3={{Chembox Structure
| Dipole = 0.63 [[Debye|D]] (22&nbsp;°C)<ref name=cons3 />
| CrystalStruct = [[단사정계]] (−95&nbsp;°C)<ref name=csba>{{저널 인용| doi = 10.1107/S0365110X62003278| title = The crystal structure of propionic acid| journal = Acta Crystallographica| volume = 15| issue = 12| pages = 1233–1239| year = 1962| last1 = Strieter | first1 = F. J.| last2 = Templeton | first2 = D. H.| last3 = Scheuerman | first3 = R. F.| last4 = Sass | first4 = R. L.| url = http://www.escholarship.org/uc/item/55b9n7jj}}</ref>
| SpaceGroup = P2<sub>1</sub>/c<ref name=csba />
| LattConst_a = 4.04&nbsp;Å
| LattConst_b = 9.06&nbsp;Å
| LattConst_c = 11&nbsp;Å<ref name=csba />
| LattConst_alpha =
| LattConst_beta = 91.25
| LattConst_gamma =
 }}
|Section4={{Chembox Thermochemistry
| DeltaHf = −510.8 kJ/mol<ref name=nist>{{nist|name=Propanoic acid| id= C79094|accessdate=13 June 2014|mask=FFFF|units=SI}}</ref>
| DeltaHc = 1527.3 kJ/mol<ref name=cons3 /><ref name=nist />
| HeatCapacity = 152.8 J/mol·K<ref name=chemister /><ref name=nist />
| Entropy = 191 J/mol·K<ref name=nist />
 }}
|Section7={{Chembox Hazards
| GHSPictograms = {{GHS02}}{{GHS05}}<ref name="sigma">{{Sigma-Aldrich| id= w292400|name=Propionic acid|accessdate=13 June 2014}}</ref>
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|314}}<ref name="sigma" />
| PPhrases = {{P-phrases|280|305+351+338|310}}<ref name="sigma" />
| MainHazards = 부식성
| NFPA-H = 3
| NFPA-F = 2
| NFPA-R = 0
| FlashPtC = 54
| FlashPt_ref =<ref name="sigma" />
| AutoignitionPtC = 512
| LD50 = 1370 mg/kg (mouse, oral)<ref name=chemister />
| PEL = none<ref name=PGCH>{{PGCH|0529}}</ref>
| IDLH = N.D.<ref name=PGCH/>
| REL = TWA 10 ppm (30 mg/m<sup>3</sup>) ST 15 ppm (45 mg/m<sup>3</sup>)<ref name=PGCH/>
 }}
|Section8={{Chembox Related
| OtherAnions =
| OtherFunction_label = [[카복실산]]
| OtherFunction = [[아세트산]],<br />[[젖산]],<br />[[3-하이드록시프로피온산]],<br />[[타르트론산]],<br />[[아크릴산]],<br />[[뷰티르산]]
| OtherCompounds = [[1-프로판올]],<br />[[프로피온알데하이드]],<br />[[프로피온산 나트륨]],<br />[[프로피온산 무수물]]}}
}}

'''프로피온산'''({{llang|en|propionic acid}})은 [[화학식]]이 CH<sub>3</sub>CH<sub>2</sub>CO<sub>2</sub>H인 천연 [[카복실산]]이다. "프로피온산"이라는 용어는 "첫 번째"를 의미하는 [[그리스어]] "protos"와 "지방"을 의미하는 그리스어 "pion"으로부터 유래하였다. '''프로판산'''({{llang|en|propanoic acid}})이라고도 한다. 프로피온산은 약간 [[체취]]와 비슷한 냄새 및 자극적이고 불쾌한 냄새가 나는 액체이다. [[음이온]]인 CH<sub>3</sub>CH<sub>2</sub>CO<sub>2</sub><sup>−</sup> 뿐만 아니라 프로피온산의 [[염]] 및 [[에스터]]는 '''프로피온산염'''({{llang|en|propionate}}) 또는 '''프로판산염'''({{llang|en|propanoate}})으로 알려져 있다.

== 같이 보기 ==
* [[폼산]]
* [[아세트산]]

== 각주 ==
{{각주}}

{{전거 통제}}

[[분류:프로피온산| ]]
[[분류:E 번호 첨가제]]
[[분류:악취가 나는 화학 물질]]
[[분류:3개의 탄소 원자를 가진 유기 화합물]]