Methanol, Laboratory Reagent, ≥99.6% ยี่ห้อ Sigma

PROPERTIES

grade

Laboratory Reagent

Quality Level

100

vapor density

1.11 (vs air)

vapor pressure

410 mmHg ( 50 °C)

97.68 mmHg ( 20 °C)

Assay

≥99.6%

form

liquid

autoignition temp.

725 °F

expl. lim.

36 %

impurities

≤0.01% alkalinity (as NH₃)

≤0.03% acidity (as HCOOH)

≤0.1% water

evapn. residue

≤0.01%

refractive index

n20/D 1.329 (lit.)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

density

0.791 g/mL at 25 °C (lit.)

format

neat

storage temp.

room temp

SMILES string

CO

InChI

1S/CH4O/c1-2/h2H,1H3

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

DESCRIPTION

General description

Methanol is an industrially important alcohol.[1] Its thermochemical conversion to C₂-C₁₀ hydrocarbons in the presence of shape-selective zeolites has been reported.[2] Its oxidation on Ru-Pt catalyst system by ruthenium ad-atoms has been proposed.[3] It participates in the purification step during the synthesis of pyocyanin, a toxic compound found in Pseudomonas aeruginosa.[4]

Methanol is an organic solvent that can be synthesized from syngas in the presence of CuO/ZnO/Al₂O₃ catalysts.[5] It is an ideal candidate as a hydrogen source in fuel cell technology due to its high H/C ratio, low propensity for soot generation, relatively low reforming temperature and as it exists in liquid state at room temperature.[6][7] In a direct methanol fuel cell (DMFC), methanol undergoes oxidation with air to generate electricity. The olefins (ethylene or propylene) formed from methanol via MTO (methanol-to-olefins) process, can be an alternative to oil and gas to produce hydrocarbon fuels.[8]

Application

Methanol may be used to compose the binary mixtures with acetonitrile in a study. Experimental evaluation of the values of dielectric constant and dielectric loss of these binary mixtures at microwave frequencies at 300°C has been reported.[1]