179337

Methanol

ACS reagent, ≥99.8%

• Synonym(s): Methyl alcohol
• Linear Formula: CH₃OH
• CAS Number: 67-56-1
• Molecular Weight: 32.04
• Beilstein: 1098229
• Número de EC: 200-659-6
• Número MDL: MFCD00004595
• eCl@ss: 39020101
• ID de la sustancia en PubChem: 329751589
• NACRES: NA.21

Properties

• grado: ACS reagent
• Nivel de calidad: 100; 200
• densidad de vapor: 1.11 (vs air)
• presión de vapor: 410 mmHg ( 50 °C); 97.68 mmHg ( 20 °C)
• ensayo: ≥99.8%
• formulario: liquid
• temp. de autoignición: 725 °F
• lim. expl.: 36 %
• impurezas: H₂SO₄, passes test (darkened); MnO₄^- reducers, passes test; ≤0.0002 meq/g Titr. base; ≤0.0003 meq/g Titr. acid; ≤0.001% acetaldehyde; ≤0.001% acetone; ≤0.001% formaldehyde; ≤0.1% water
• residuo de evap.: ≤0.001%
• color: APHA: ≤10; clear
• índice de refracción: n20/D 1.329 (lit.)
• bp: 64.7 °C (lit.)
• mp: −98 °C (lit.)
• densidad: 0.791 g/mL at 25 °C (lit.)
• SMILES string: CO
• InChI: 1S/CH4O/c1-2/h2H,1H3
• InChI key: OKKJLVBELUTLKV-UHFFFAOYSA-N

Description

Descripción general

Methanol is an organic solvent that can be synthesized from syngas in the presence of CuO/ZnO/Al₂O₃ catalysts. 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. 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.

Methanol undergoes thermochemical conversion to C₂-C₁₀ hydrocarbons in the presence of shape-selective zeolites has been reported. Its oxidation on Ru-Pt catalyst system by ruthenium ad-atoms has been proposed.

Aplicación

Methanol has been used as a solvent for the sodium dodecyl sulfate-polyacrylamide gel electrophoretic (SDS-PAGE) analysis of alkaline protease isoforms isolated from larva of the spotted sand bass (Paralabrax maculatofasciatus). It has been used in the isolation and quantitative determination of carotenes and xanthophylls from Capsicum annum pericarp extracts by HPLC.

Envase

25, 500, 500 mL

1, 1, 2, 2, 2.5, 2.5, 4, 4 L in glass bottle

4 L in poly bottle

18, 18, 20, 20, 200 L in Pure-Pac™ 1

200 L in Pure-Pac™ 2

200, 200 L

270 gal

Safety Information

• pictogramas: GHS02,GHS06,GHS08
• Palabra de señalización: Danger
• Frases de peligro: H225 - H301 + H311 + H331 - H370
• Consejos de prudencia: P210 - P280 - P301 + P310 + P330 - P302 + P352 + P312 - P304 + P340 + P311
• Clasificaciones de peligro: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
• Órganos de actuación: Eyes
• Código de clase de almacenamiento: 3 - Flammable liquids
• WGK: WGK 2
• Punto de inflamabilidad F: 49.5 °F - closed cup
• Punto de inflamabilidad C: 9.7 °C - closed cup