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Stearic acid

SIAL/175366 - reagent grade, 95%

Synonym: STA; 1-Heptadecanecarboxylic acid; C18:0; Cetylacetic acid; NSC 25956; NSC 261168; Octadecanoic acid; Stearophanic acid

CAS Number: 57-11-4
Empirical Formula (Hill Notation): C18H36O2
Molecular Weight: 284.48
EC Number: 200-313-4
MDL Number: MFCD00002752
Linear Formula: CH3(CH2)16COOH
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-175366-100G 100 g
 $42.80
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45-175366-1KG 1 kg
 $45.80
1/EA		 Add To Favorites
45-175366-5KG 5 kg
 $130.00
1/EA		 Add To Favorites
45-175366-12KG 12 kg
 $309.00
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This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 175366-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 175366-1KG

 

assay 95%
bp 361 °C (lit.)
form powder or flakes
functional group carboxylic acid
grade reagent grade
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
mp 67-72 °C (lit.)
Quality Level 200 
SMILES string CCCCCCCCCCCCCCCCCC(O)=O
vapor pressure 1 mmHg ( 173.7 °C)
Application: 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.
Application: Stearic acid may be used to compose the core during sol-gel synthesis of nanoencapsulated phase change materials (NEPCMs).
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.
Packaging: 1 kg in poly bottle
Packaging: 100 g in poly bottle
Packaging: 5, 12 kg in fiber drum
RIDADR NONH for all modes of transport
WGK Germany nwg
Flash Point(F) 235.4 °F - closed cup
Flash Point(C) 113 °C - closed cup
Purity 95%
bp 361 °C (lit.)
mp 67-72 °C (lit.)
UNSPSC 12352106

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