34860-M

Méthanol

≥99.9%, suitable for HPLC

• Synonyme(s) : Alcool méthylique
• Formule linéaire : CH₃OH
• Numéro CAS: 67-56-1
• Poids moléculaire : 32.04
• Numéro Beilstein : 1098229
• Numéro CE : 200-659-6
• Numéro MDL: MFCD00004595
• Code UNSPSC : 12190000
• ID de substance PubChem : 329755069
• Nomenclature NACRES : NA.21

Propriétés

• product name: Méthanol, suitable for HPLC, ≥99.9%
• Densité de vapeur: 1.11 (vs air)
• Pression de vapeur: 410 mmHg ( 50 °C); 97.68 mmHg ( 20 °C)
• Pureté: ≥99.9%
• Forme: liquid
• Température d'inflammation spontanée: 725 °F
• Limite d'explosivité: 36 %
• Technique(s): HPLC: suitable
• Impuretés: ≤0.0005% non-volatile matter; ≤1 ppb fluorescence (quinine) at 254 nm; ≤1 ppb fluorescence (quinine) at 365 nm; <0.03% water (Karl Fischer)
• Résidus d'évap.: <0.0005%
• Couleur: APHA: ≤10
• Indice de réfraction: n20/D 1.329 (lit.)
• Point d'ébullition: 64.7 °C (lit.)
• Pf: −98 °C (lit.)
• Densité: 0.791 g/mL at 25 °C (lit.)
• λ: neat
• Absorption 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
• Format: neat
• Chaîne SMILES: CO
• InChI: 1S/CH4O/c1-2/h2H,1H3
• Clé InChI: OKKJLVBELUTLKV-UHFFFAOYSA-N

Description

Description générale

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.

Application

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.

Conditionnement

View returnable container options.

Notes préparatoires

Product filtered through a 0.2 μm filter

Autres remarques

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

Important notice
This product will be phased out towards early 2019. There is a replacement product available : 34860

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Informations légales

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS02,GHS06,GHS08
• Mention d'avertissement: Danger
• Mentions de danger: H225,H301 + H311 + H331,H370
• Conseils de prudence: P210 - P233 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311
• Classification des risques: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
• Organes cibles: Eyes,Central nervous system
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 2
• Point d'éclair (°F): 49.5 °F - closed cup
• Point d'éclair (°C): 9.7 °C - closed cup