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175366

Sigma-Aldrich

Stearinsäure

reagent grade, 95%

Synonym(e):

1-Heptadecancarbonsäure, C18: 0, Cetylessigsäure, NSC 25956, NSC 261168, Octadecansäure

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About This Item

Lineare Formel:
CH3(CH2)16COOH
CAS-Nummer:
57-11-4
Molekulargewicht:
284.48
Beilstein:
608585
EG-Nummer:
200-313-4
MDL-Nummer:
MFCD00002752
UNSPSC-Code:
12352106
PubChem Substanz-ID:
24850497
NACRES:
NA.21

Qualität

reagent grade

Qualitätsniveau

200

Dampfdruck

1 mmHg ( 173.7 °C)

Assay

95%

Form

powder or flakes

bp

361 °C (lit.)

mp (Schmelzpunkt)

67-72 °C (lit.)

SMILES String

CCCCCCCCCCCCCCCCCC(O)=O

InChI

1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)

InChIKey

QIQXTHQIDYTFRH-UHFFFAOYSA-N

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Allgemeine Beschreibung

Stearic acid (SA) is a straight chain fatty acid. It forms ordered monolayered Langmuir-Blodgett (LB) films on the surface of germanium. These LB films have been investigated by Fourier transform-infrared (FTIR)-attenuated total reflection (AR) spectra.

Conversion of SA with >98% selectivity to deoxygenated C17 products by employing carbon supported palladium catalyst has been reported. It is a promising phase change material (PCM) due to its non-toxicity and convenient melting temperature. Also, it exhibits almost negligible supercooling while undergoing phase change.

Anwendung

Stearic acid can undergo esterification in the presence of mesoporous solid acid catalysts to form methyl stearate. Due to its waterproof ability, STA may be used to impart superhydrophobicity on various surfaces. STA may also be used in the preparation of stearic acid self-assembled monolayers.
Stearic acid may be used to compose the core during sol-gel synthesis of nanoencapsulated phase change materials (NEPCMs).

Lagerklassenschlüssel

11 - Combustible Solids

WGK

nwg

Flammpunkt (°F)

392.0 °F - Cleveland open cup

Flammpunkt (°C)

200 °C - Cleveland open cup

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves

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Analysenzertifikate (COA)

Lot/Batch Number

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Stearinsäure Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1114

Stearinsäure

Palmitinsäure ≥98% palmitic acid basis (GC)

Sigma-Aldrich

27734

Palmitinsäure

Palmitinsäure ≥99%

Sigma-Aldrich

P0500

Palmitinsäure

2-Dimethylamino-2-methylpropanol -Lösung 80% in H2O, technical grade

Sigma-Aldrich

423041

2-Dimethylamino-2-methylpropanol -Lösung

Oleinsäure technical grade, 90%

Sigma-Aldrich

364525

Oleinsäure

Facile synthesis and thermal performances of stearic acid/titania core/shell nanocapsules by sol-gel method.
Latibari ST, et al.
Energy, 85, 635-644 (2015)
Heterogeneous catalytic deoxygenation of stearic acid for production of biodiesel.
Latibari ST, et al.
Industrial & Engineering Chemistry Research, 45(16), 5708-5715 (2006)
Preparation and characterization of an ultrahydrophobic surface based on a stearic acid self-assembled monolayer over polyethyleneimine thin films.
Ren S, et al.
Surface Science, 546(2), 64-74 (2003)
FTIR-ATR studies on Langmuir-Blodgett films of stearic acid with 1-9 monolayers.
Kimura F, et al.
Langmuir, 2(1), 96-101 (1986)
Nano-crystalline, mesoporous aerogel sulfated zirconia as an efficient catalyst for esterification of stearic acid with methanol.
Saravanan K, et al.
Applied Catalysis. B, Environmental, 192, 161-170 (2016)
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