175366

Sigma-Aldrich

Stearic acid

reagent grade, 95%

Sinônimo(s):
Octadecanoic acid, Stearophanic acid, NSC 25956, 1-Heptadecanecarboxylic acid, C18:0, NSC 261168, STA, Cetylacetic acid
Fórmula linear:
CH3(CH2)16COOH
Número CAS:
Peso molecular:
284.48
Beilstein/REAXYS Number:
608585
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

Nível de qualidade

200

grau

reagent grade

pressão de vapor

1 mmHg ( 173.7 °C)

teor

95%

forma

powder or flakes

pb

361 °C (lit.)

pf

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)

InChI key

QIQXTHQIDYTFRH-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

Stearic acid may be used to compose the core during sol-gel synthesis of nanoencapsulated phase change materials (NEPCMs).
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.

Embalagem

100 g in poly bottle
1 kg in poly bottle
5, 12 kg in fiber drum

storage_class_code

11 - Combustible Solids

WGK Alemanha

nwg

Ponto de fulgor (ºF)

235.4 °F - closed cup

Ponto de fulgor (ºC)

113 °C - closed cup

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

Certificado de análise

Certificado de origem

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)
FTIR-ATR studies on Langmuir-Blodgett films of stearic acid with 1-9 monolayers.
Kimura F, et al.
Langmuir, 2(1), 96-101 (1986)
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)
Study on superhydrophobic hybrids fabricated from multiwalled carbon nanotubes and stearic acid.
Wu T, et al.
Journal of Colloid and Interface Science, 348(1), 265-270 (2010)
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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