스테아린

스테아린[1]
Skeletal formula of stearin
Space-filling model of the tristearin molecule
Powder of stearin
이름
우선명 (PIN)
Propane-1,2,3-triyl tri(octadecanoate)
별칭
Tristearin; Trioctadecanoin; Glycerol tristearate; Glyceryl tristearate
식별자
3D 모델 (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.008.271
KEGG
UNII
  • 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 아니오아니오
    Key: DCXXMTOCNZCJGO-UHFFFAOYSA-N 아니오아니오
  • 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
    Key: DCXXMTOCNZCJGO-UHFFFAOYSA-N
  • CCCCCCCCCCCCCCCCCC(=O)OCC(COC(=O)CCCCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCCCC
성질
C57H110O6
몰 질량 891.501 g·mol−1
겉보기 White powder
냄새 Odorless
밀도 0.862 g/cm3 (80 °C)
0.8559 g/cm3 (90 °C)[2]
녹는점 54–72.5 °C (129.2–162.5 °F; 327.1–345.6 K)[3]
Insoluble
용해도 Slightly soluble in C6H6, CCl4
Soluble in acetone, CHCl3
Insoluble in EtOH[2]
1.4395 (80 °C)[2]
구조
Triclinic (β-form)[4]
P1 (β-form)[4]
a = 12.0053 Å, b = 51.902 Å, c = 5.445 Å (β-form)[4]
α = 73.752°, β = 100.256°, γ = 117.691°
열화학
1342.8 J/mol·K (β-form, 272.1 K)
1969.4 J/mol·K (346.5 K)[3][5]
1534.7 J/mol·K (liquid)[5]
−2344 kJ/mol[5]
35806.7 kJ/mol[5]
위험
NFPA 704 (파이어 다이아몬드)
인화점 ≥ 300 °C (572 °F; 573 K) closed cup[6]
반수 치사량 또는 반수 치사농도 (LD, LC):
2000 mg/kg (rats, oral)[6]
달리 명시된 경우를 제외하면, 표준상태(25 °C [77 °F], 100 kPa)에서 물질의 정보가 제공됨.
아니오아니오 확인 (관련 정보 예아니오아니오 ?)

스테아린(Stearin)은 무색의 백색 고체이다. 스테아르산에서 파생된 트라이글리세라이드이다. 대부분의 트라이글리세라이드는 적어도 2개의 지방산에서 비롯되지만 대부분이 3개의 각기 다른 지방산에서 비롯된다.[7] 다른 트라이글리세라이드들처럼 스테아린은 3개의 동질이상으로 결정화가 가능하다. 스테아린의 경우 54 (α-form), 65, 그리고 72.5 °C (β-form)에서 녹는다.[3]

이용

스테아린은 양초비누 제조에 쓰이는 경화제이다.[8] 수산화 나트륨 용액을 물에 섞어서 글리세롤스테아르산 나트륨을 생성한다.

C3H5(C18H35O2)3 + 3 NaOH → C3H5(OH)3 + 3 C18H35OONa

같이 보기

각주

  1. Merck Index, 11th Edition, 9669.
  2. Lide, David R., 편집. (2009). 《CRC Handbook of Chemistry and Physics》 90판. Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0. 
  3. Charbonnet, G. H.; Singleton, W. S. (1947). “Thermal properties of fats and oils”. 《Journal of the American Oil Chemists' Society》 24 (5): 140. doi:10.1007/BF02643296. 
  4. Van Langevelde, A.; Peschar, R.; Schenk, H. (2001). “Structure of β-trimyristin and β-tristearin from high-resolution X-ray powder diffraction data”. 《Acta Crystallographica Section B》 57 (3): 372. doi:10.1107/S0108768100019121. 
  5. Tristearin in Linstrom, Peter J.; Mallard, William G. (eds.); NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg (MD), http://webbook.nist.gov (retrieved 2014-06-19)
  6. “MSDS of Stearin Wax” (PDF). 《www.swna.us》. Sasol Wax North America Corp. 2016년 3월 4일에 원본 문서 (PDF)에서 보존된 문서. 2014년 6월 19일에 확인함. 
  7. Alfred Thomas (2002). 〈Fats and Fatty Oils〉. 《Ullmann's Encyclopedia of Industrial Chemistry》. 《Ullmann's Encyclopedia of Industrial Chemistry》. Weinheim: Wiley-VCH. doi:10.1002/14356007.a10_173. ISBN 978-3527306732. 
  8. Geller, L. W. (1935). “Waxes in the candle industry”. 《Oil & Soap》 12 (11): 263–265. doi:10.1007/BF02636720. 

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