34860

Methanol

suitable for HPLC, ≥99.9%

• 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
• ID de la sustancia en PubChem: 329755069
• NACRES: NA.21

Properties

• densidad de vapor: 1.11 (vs air)
• Nivel de calidad: 100
• presión de vapor: 410 mmHg ( 50 °C); 97.68 mmHg ( 20 °C)
• ensayo: ≥99.9%
• formulario: liquid
• temp. de autoignición: 725 °F
• lim. expl.: 36 %
• technique(s): HPLC: suitable; immunofluorescence: suitable
• impurezas: ≤0.0005% non-volatile matter; ≤1 ppb fluorescence (quinine) at 254 nm; ≤1 ppb fluorescence (quinine) at 365 nm; <0.03% water (Karl Fischer)
• residuo de evap.: <0.0005%
• color: APHA: ≤10
• 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.)
• λ: neat
• Absorción UV: λ: 205 nm A_max: ≤1.00; λ: 210 nm A_max: ≤0.60; λ: 220 nm A_max: ≤0.30; λ: 230 nm A_max: ≤0.20; λ: 235 nm A_max: ≤0.10; λ: 240 nm A_max: ≤0.10; λ: 260 nm A_max: ≤0.04; λ: 280 nm A_max: ≤0.01; λ: 400 nm A_max: ≤0.01
• application(s): food and beverages
• 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 alternate to oil and gas to produce hydrocarbon fuels.

Thermochemical conversion of methanol 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 (MeOH) has been used in the wholemount immunofluorescence studies of embryonic tissues.
It may be used in the following studies:

• Colony forming unit-fibroblast assay of bone marrow mononuclear cells.
• As solvent for the preparation of extracts of hyphae of Aspergillus for the estimation of gliotoxin by reversed phase-HPLC.
• Immunofluorescence studies.
• To compose the eluent for the ion-pair reverse-phase HPLC isolation of nucleotides and their decomposition products.

Methanol can be used as a mobile phase in reversed-phase liquid chromatography.

Envase

100, 100 mL

1, 1, 1, 1, 2, 2, 2.5, 2.5, 2.5, 2.5, 4, 4, 5, 7, 10, 18, 18, 20, 30, 35, 45, 50, 50, 56, 100, 185, 199, 200, 200, 400, 1000 L

1 pkg

View returnable container options.

Nota de preparación

Product filtered through a 0.2 μm filter

Otras notas

Pure-Pac^® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

Important notice

• The article number 34860-4X2.5L-R will be discontinued. Please order the single bottle 34860-2.5L-R which is physically identical with the same exact specifications.
• The article number 34860-6X1L-R will be discontinued. Please order the single bottle 34860-1L-R which is physically identical with the same exact specifications.

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Información legal

Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC

Safety Information

• pictogramas: GHS02,GHS06,GHS08
• Palabra de señalización: Danger
• Frases de peligro: H225 - H301 + H311 + H331 - H370
• Consejos de prudencia: P210 - P233 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311
• Clasificaciones de peligro: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
• 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