Description
Chemical Name:Octadecanethiol
Cas No:2885-00-9
EINECS No:220-744-1
Synonyms:MERCAPTAN C18;NANOTHINKS(R) 18;N-OCTADECYL MERCAPTAN;N-OCTADECANETHIOL;OCTADECANETHIOL;STEARYL MERCAPTAN;STEARYL MERCAPTANE;1-Mercaptooctadecane
Molecular Formula:C18H38S
Molecular Weight:286.56
Molecular Structure:
Specification:
Items | Specifications |
Cas No. | 2885-00-9 |
EINECS | 220-744-1 |
Molecular Weight | 286.56 |
Appearance | White crystalline powder |
Density | 0.847 g/mL |
pKa | 10.49±0.10 |
Water solublity | Insoluble |
Moisture(%) | ≤2.0 |
Melting Point | 30-33 °C(lit.) |
Water | 0.10% |
PH | / |
Boiling point | 204-210 °C11 mm Hg(lit.) |
Function:
Octadecanethiol is a long-chain thiol. The sulfur atom (-SH) in its molecule has a strong ability to form chemical bonds with metal surfaces and can self-assemble to form a monolayer on the surface of metals (such as gold, silver, copper, etc.).
By forming a monolayer of octadecyl mercaptan on the surface of the material, the surface of the material can be protected from erosion by the external environment, such as preventing oxidation and corrosion of metal materials.
Application:
It is widely used in the preparation and modification of nanomaterials.
Used for surface protection and functionalization of metal materials. In the electronics industry, for easily oxidized metal circuits such as copper, self-assembly of octadecyl mercaptan on their surfaces can improve the metal’s antioxidant capacity and extend the service life of electronic products.
In the fabrication of MEMS devices and sensors, octadecanethiol can be used to tune the wettability and electrical properties of surfaces.
