EMAIL THIS PAGE TO A FRIEND
175366 Sigma-Aldrich

Stearic acid

reagent grade, 95%

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

  • CAS Number 57-11-4

  • Linear Formula CH3(CH2)16COOH

  • Molecular Weight 284.48

  •  Beilstein Registry Number 608585

  •  EC Number 200-313-4

  •  MDL number MFCD00002752

  •  PubChem Substance ID 24850497

Purchase

Properties

Related Categories Biochemicals and Reagents, Fatty Acids and conjugates, Fatty Acyls, Lipids, Straight Chain Fatty Acids More...
grade   reagent grade
vapor pressure   1 mmHg ( 173.7 °C)
InChI Key   QIQXTHQIDYTFRH-UHFFFAOYSA-N
assay   95%
form   powder or flakes
bp   361 °C(lit.)
mp   67-72 °C (lit.)

Description

Packaging

1 kg in poly bottle

100 g in poly bottle

5, 12 kg in fiber drum

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.

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.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
nwg
RTECS 
WI2800000
Flash Point(F) 
235.4 °F
Flash Point(C) 
113 °C

Documents

Certificate of Analysis

Certificate of Origin


Webinar - Hydrogels

Same Products - New Packaging
Protocols & Articles
Peer-Reviewed Papers
15

References

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?