175366
Acide stéarique
reagent grade, 95%, powder or flakes
Synonyme(s) :
STA, 1-Heptadecanecarboxylic acid, C18:0, Cetylacetic acid, NSC 25956, NSC 261168, Octadecanoic acid, Stearophanic acid
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A propos de cet article
Formule linéaire :
CH3(CH2)16COOH
Numéro CAS:
Poids moléculaire :
284.48
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352106
EC Number:
200-313-4
MDL number:
Beilstein/REAXYS Number:
608585
Assay:
95%
Form:
powder or flakes
Grade:
reagent grade
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Laissez-nous vous aiderNom du produit
Acide stéarique, reagent grade, 95%
grade
reagent grade
Quality Level
vapor pressure
1 mmHg ( 173.7 °C)
assay
95%
form
powder or flakes
bp
361 °C (lit.)
mp
67-72 °C (lit.)
functional group
carboxylic acid
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
General description
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.
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.
Application
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.
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Classe de stockage
11 - Combustible Solids
flash_point_f
392.0 °F - Cleveland open cup
flash_point_c
200 °C - Cleveland open cup
ppe
dust mask type N95 (US), Eyeshields, Gloves
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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)
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)