{{위키데이터 속성 추적}}
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 429325307
| Reference =<ref>''[[Merck Index]]'', 11th Edition, '''9669'''.</ref>
| ImageFile = stearin.png
| ImageSize = 250px
| ImageAlt = Skeletal formula of stearin
| ImageFile1 = Tristearin 3D spacefill.png
| ImageAlt1 = Space-filling model of the tristearin molecule
| ImageFile2 = Stearin krystalický.JPG
| ImageAlt2 = Powder of stearin
| PIN = Propane-1,2,3-triyl tri(octadecanoate)
| OtherNames = Tristearin; Trioctadecanoin; Glycerol tristearate; Glyceryl tristearate
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 555-43-1
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = P6OCJ2551R
| PubChem = 11146
| ChEBI_Ref = {{ebicite|changed|EBI}}
| ChEBI = 45956
| SMILES = CCCCCCCCCCCCCCCCCC(=O)OCC(COC(=O)CCCCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCCCC
| InChI = 1S/C57H110O6/c1-4-7-10-13-16-19-22-25-28-31-34-37-40-43-46-49-55(58)61-52-54(63-57(60)51-48-45-42-39-36-33-30-27-24-21-18-15-12-9-6-3)53-62-56(59)50-47-44-41-38-35-32-29-26-23-20-17-14-11-8-5-2/h54H,4-53H2,1-3H3
| InChIKey = DCXXMTOCNZCJGO-UHFFFAOYSA-N
| StdInChI_Ref = {{stdinchicite|changed|chemspider}}
| StdInChI = 1S/C57H110O6/c1-4-7-10-13-16-19-22-25-28-31-34-37-40-43-46-49-55(58)61-52-54(63-57(60)51-48-45-42-39-36-33-30-27-24-21-18-15-12-9-6-3)53-62-56(59)50-47-44-41-38-35-32-29-26-23-20-17-14-11-8-5-2/h54H,4-53H2,1-3H3
| StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}
| StdInChIKey = DCXXMTOCNZCJGO-UHFFFAOYSA-N
| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}
| ChemSpiderID = 10673
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = D10637
 }}
|Section2={{Chembox Properties
| C=57 | H=110 | O=6
| Appearance = White powder
| Odor = Odorless
| Density = 0.862 g/cm<sup>3</sup> (80 °C)<br> 0.8559 g/cm<sup>3</sup> (90 °C)<ref name=crc>{{CRC90}}</ref>
| MeltingPtC = 54-72.5
| MeltingPt_ref =<ref name=spring />
| Solubility = Insoluble
| SolubleOther = Slightly soluble in [[benzene|C<sub>6</sub>H<sub>6</sub>]], [[carbon tetrachloride|CCl<sub>4</sub>]]<br> Soluble in [[acetone]], [[chloroform|CHCl<sub>3</sub>]]<br> Insoluble in [[ethanol|EtOH]]<ref name=crc />
| RefractIndex = 1.4395 (80 °C)<ref name=crc />
  }}
|Section4={{Chembox Thermochemistry
| Entropy = 1534.7 J/mol·K (liquid)<ref name=nist>{{nist|name=Tristearin|id=C555431|accessdate=2014-06-19|mask=FFFF|units=SI}}</ref>
| DeltaHc = 35806.7 kJ/mol<ref name=nist />
| DeltaHf = −2344 kJ/mol<ref name=nist />
| HeatCapacity = 1342.8 J/mol·K (β-form, 272.1&nbsp;K)<br> 1969.4 J/mol·K (346.5 K)<ref name=spring /><ref name=nist />
  }}
|Section3={{Chembox Structure
| CrystalStruct = [[triclinic crystal system|Triclinic]] (β-form)<ref name=iucr>{{저널 인용| doi = 10.1107/S0108768100019121| title = Structure of β-trimyristin and β-tristearin from high-resolution X-ray powder diffraction data| journal = Acta Crystallographica Section B| volume = 57| issue = 3| pages = 372| year = 2001| last1 = Van Langevelde | first1 = A. | last2 = Peschar | first2 = R. | last3 = Schenk | first3 = H. | doi-access = free}}</ref>
| SpaceGroup = P{{overline|1}} (β-form)<ref name=iucr />
| PointGroup = 
| LattConst_a = 12.0053&nbsp;Å
| LattConst_b = 51.902&nbsp;Å
| LattConst_c = 5.445&nbsp;Å (β-form)<ref name=iucr />
| LattConst_alpha = 73.752
| LattConst_beta = 100.256
| LattConst_gamma = 117.691
  }}
|Section7={{Chembox Hazards
| FlashPtC = 300
| FlashPt = ≥
| FlashPt_notes = closed cup<ref name=swan />
| AutoignitionPtC = 
| NFPA-H = 1
| NFPA-F = 1
| NFPA-R = 0
| NFPA_ref =<ref name=swan>{{웹 인용|url = http://www.swna.us/MSDS/Stearin%20Wax%20MSDS.pdf|title = MSDS of Stearin Wax|website = www.swna.us|accessdate = 2014-06-19|publisher = Sasol Wax North America Corp.|archive-date = 2016-03-04|archive-url = https://web.archive.org/web/20160304043537/http://www.swna.us/MSDS/Stearin%20Wax%20MSDS.pdf|url-status = }}</ref>
| LD50 = 2000 mg/kg (rats, oral)<ref name=swan />
  }}
}}
'''스테아린'''(Stearin)은 무색의 백색 고체이다. [[스테아르산]]에서 파생된 [[트라이글리세라이드]]이다. 대부분의 트라이글리세라이드는 적어도 2개의 [[지방산]]에서 비롯되지만 대부분이 3개의 각기 다른 [[지방산]]에서 비롯된다.<ref name=Ullmann>{{백과사전 인용|author=Alfred Thomas |title=Ullmann's Encyclopedia of Industrial Chemistry |encyclopedia=Ullmann's Encyclopedia of Industrial Chemistry |publisher=Wiley-VCH |place=Weinheim |year=2002 |doi=10.1002/14356007.a10_173 |chapter=Fats and Fatty Oils |isbn=978-3527306732}}</ref> 다른 트라이글리세라이드들처럼 스테아린은 3개의 [[동질이상]]으로 결정화가 가능하다. 스테아린의 경우 54 (α-form), 65, 그리고 72.5 °C (β-form)에서 녹는다.<ref name=spring>{{저널 인용| doi = 10.1007/BF02643296| title = Thermal properties of fats and oils| journal = Journal of the American Oil Chemists' Society| volume = 24| issue = 5| pages = 140| year = 1947| last1 = Charbonnet | first1 = G. H. | last2 = Singleton | first2 = W. S.}}</ref>

== 이용 ==
스테아린은 [[양초]]와 [[비누]] 제조에 쓰이는 경화제이다.<ref>{{저널 인용|title= Waxes in the candle industry | doi=10.1007/BF02636720 | volume=12|issue= 11 |journal=Oil & Soap|pages=263–265 | last1 = Geller | first1 = L. W.|year= 1935 }}</ref> [[수산화 나트륨]] 용액을 물에 섞어서 [[글리세롤]]과 [[스테아르산 나트륨]]을 생성한다.
:C<sub>3</sub>H<sub>5</sub>(C<sub>18</sub>H<sub>35</sub>O<sub>2</sub>)<sub>3</sub> + 3 NaOH → C<sub>3</sub>H<sub>5</sub>(OH)<sub>3</sub> + 3 C<sub>18</sub>H<sub>35</sub>OONa

== 같이 보기 ==
* [[양초]]
* [[비누]]
* [[스테아르산]]

== 각주 ==
{{각주}}

{{지질}}

[[분류:트라이글리세라이드]]