ChemicalBook > CAS DataBase List > Octadecanethiol

Octadecanethiol

CAS No.2885-00-9
Chemical Name:Octadecanethiol
CBNumber:CB3677676
Molecular Formula:C18H38S
Formula Weight:286.56
MOL File:2885-00-9.mol

Octadecanethiol Property

Melting point 30-33 °C(lit.)
Boiling point 204-210 °C11 mm Hg(lit.)
Density 0.847 g/mL at 25 °C(lit.)
vapor pressure <0.5 hPa (20 °C)
refractive index n20/D 1.3610
Flash point 55 °F
storage temp. Store below +30°C.
form Crystalline Solid
pka 10.49±0.10(Predicted)
Specific Gravity 0.832 (30℃)0.847
color White
Water Solubility Insoluble
BRN 1811934
Exposure limits NIOSH: Ceiling 0.5 ppm(5.9 mg/m3)
Stability Stability Combustible. Stable. Incompatible with strong oxidizing agents, bases, reducing agents, alkali metals.
InChIKey QJAOYSPHSNGHNC-UHFFFAOYSA-N
LogP 8 at 20℃
CAS DataBase Reference 2885-00-9(CAS DataBase Reference)
NIST Chemistry Reference 1-Octadecanethiol(2885-00-9)
EPA Substance Registry System 1-Octadecanethiol (2885-00-9)
UNSPSC Code 12352300
NACRES NA.23

Safety

Hazard Codes :F,Xi
Risk Statements :36/37/38
Safety Statements :7-16-37/39-26-36
RIDADR :UN 1170 3/PG 2
OEL :Ceiling: 0.5 ppm (5.9 mg/m3) [15-minute]
WGK Germany :3
Autoignition Temperature :>200 °C
TSCA :Yes
HS Code :29309070
Toxicity :LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rat > 2000 mg/kg

NFPA 704:

	1
2		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H400
Precautionary statements P264-P273-P280-P302+P352-P332+P313-P362+P364

Octadecanethiol Price More Price(14)

Brand: Sigma-Aldrich(India)
Product number: 8.14444
Product name : 1-Octadecanethiol
Purity: for synthesis
Packaging: 10G
Price: ₹2040
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: O1858
Product name : 1-Octadecanethiol
Purity: 98%
Packaging: 25ML
Price: ₹2976.88
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 8.14444
Product name : 1-Octadecanethiol
Purity: for synthesis
Packaging: 50G
Price: ₹2990
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: O1858
Product name : 1-Octadecanethiol
Purity: 98%
Packaging: 100ML
Price: ₹5661.48
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 8.14444
Product name : 1-Octadecanethiol
Purity: for synthesis
Packaging: 250G
Price: ₹11139.99
Updated: 2022/06/14
Buy: Buy

Octadecanethiol Chemical Properties,Usage,Production

Chemical Properties white powder with an extremely unpleasant smell
Uses ODT is used in the surface modification of gold nanoparticle (AuNPs)/Nickel (Ni) foam conjugate for the preparation of a 3D surface enhanced Raman spectroscopy(SERS) substrate for the detection of organic pollutants. It may also be used enhance the superhydrophobic properties for different materials like nano-sized copper films, graphene and silica for different applications like mercury detection and electrochemical analysis.
Uses Organic intermediate, synthetic rubber processing.
Uses 1-Octadecanethiol (ODT) is used to deposit thiolated molecules onto the surface of gold substrates, such as SAMs on gold quartz crystal resonators, on the tip of atomic force microscope probes, capacitive sensors.
General Description 1-Octadecanethiol (ODT) is a water soluble sulfur compound with an 18 carbon alkyl chain, which forms a strong hydrophobic assembly with transition metals, like gold .It forms self-assembled monolayers (SAMs) on the surface of such transition metals. The thiol membrane when covalently bonded with the surface of the metal electrode, it shows electrostriction phenomenon leading to variation in capacitance.ODT SAMs have a hydrophobic surface with contact angle of 102^oC.
Reactivity Profile Octadecanethiol is non-flammable but combustible (Flash point >100°F and <140°F). Incompatible with oxidizing agents, strong acids and strong bases, alkali metals, and nitric acid. Can react with water, steam or acids to produce toxic and flammable vapors. Reacts violently with powerful oxidizing agents such as calcium hypochlorite(Ca(OCl)2) to generate SOx. Reacts with hydrides to form flammable H2 gas; reacts with halogenated hydrocarbons to yield HX. Reacts exothermically with aldehydes. Emits toxic compounds of sulfur when when heated to decomposition.
Hazard Strong irritant.
Flammability and Explosibility Not classified