18748-91-9

Basic information

• Product Name: trimethylsilyl stearate
• Synonyms: trimethylsilyl stearate;Octadecanoic acid, trimethylsilyl ester;Octadecanoic acid trimethylsilyl;Stearic acid trimethylsilyl;Stearic acid trimethylsilyl ester
• CAS NO: 18748-91-9
• Molecular Formula: C₂₁H₄₄O₂Si
• Molecular Weight: 356.65836
• EINECS: 242-553-2
• Mol File: 18748-91-9.mol
• Article Data: 3

Chemical Properties

• Melting Point: 71.5 °C
• Boiling Point: 394.1°Cat760mmHg
• Flash Point: 159.7°C
• Appearance: /
• Density: 0.86g/cm³
• Vapor Pressure: 2.02E-06mmHg at 25°C
• Refractive Index: 1.442
• CAS DataBase Reference: trimethylsilyl stearate(CAS DataBase Reference)
• NIST Chemistry Reference: trimethylsilyl stearate(18748-91-9)
• EPA Substance Registry System: trimethylsilyl stearate(18748-91-9)

Safety Data

• Hazardous Substances Data: 18748-91-9(Hazardous Substances Data)

Usage

General Description

Trimethylsilyl stearate is a chemical compound that is derived from stearic acid and is commonly used as a surface modifier and release agent in various industrial applications. It is a type of silicone-based compound, and its primary function is to improve the performance and properties of materials by reducing friction and enhancing water repellency. Trimethylsilyl stearate is also used in the production of adhesives, sealants, and lubricants, as well as in the formulation of personal care products such as lotions and creams. Additionally, it is known for its ability to provide corrosion resistance and thermal stability, making it a valuable ingredient in the manufacturing of plastics, rubber, and metalworking fluids.

InChI:InChI=1/C21H44O2Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21(22)23-24(2,3)4/h5-20H2,1-4H3

Upstream product

• 25561-30-2 N,O-Bis(trimethylsilyl)trifluoroacetamide 
• 57-11-4 stearic acid 
• 75-77-4 chloro-trimethyl-silane 

Downstream Products

• 112-92-5 1-octadecanol 

Relevant articles and documents

HPCO—A Phosphorus-Containing Analogue of Isocyanic Acid

We describe the isolation and spectroscopic characterization of the heavier phosphorus-containing analogue of isocyanic acid (HPCO), and its isotopologue (DPCO). This fundamental small molecule, which has been postulated to exist in interstellar space, has thus far only been observed at low gas phase concentrations or in inert gas matrices. In this report we describe its synthesis, spectroscopic properties, and reactivity in solution.

Partition coefficients of ketones, phenols, aliphatic and aromatic acids, and esters in n-hexane/nitromethane

Liquid-liquid partition is used in sample preparation and in countercurrent and liquid-liquid chromatographic separations. Partition coefficients are widely used in toxicology, environmental, and analytical chemistry. The K hn determination procedure for the n-hexane/ nitromethane system was optimized and partition coefficients for 99 ketones, esters and trimethylsilyl derivatives of phenols, aliphatic and aromatic acids were determined. For 130 compounds, Khn values were predicted using mathematical relationships between Khn and other physicochemical and structural parameters. Versita Sp. z o.o.