676780

Méthanol

≥99.8%, ACS reagent, 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 : 12352104
• ID de substance PubChem : 329760653
• Nomenclature NACRES : NA.05

Propriétés

• product name: Méthanol, ACS reagent, ≥99.8%
• Qualité: ACS reagent
• Niveau de qualité: 200
• Densité de vapeur: 1.11 (vs air)
• Pression de vapeur: 410 mmHg ( 50 °C); 97.68 mmHg ( 20 °C)
• Pureté: ≥99.8%
• Forme: liquid
• Température d'inflammation spontanée: 725 °F
• Limite d'explosivité: 36 %
• Technique(s): HPLC: suitable
• Impuretés: 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
• Résidus d'évap.: ≤0.001%
• Couleur: clear; APHA: ≤10
• Indice de réfraction: n20/D 1.329 (lit.)
• Point d'ébullition: 64.7 °C (lit.)
• Pf: −98 °C (lit.)
• Solubilité: benzene: miscible(lit.); ethanol: miscible(lit.); water: miscible(lit.)
• Densité: 0.791 g/mL at 25 °C (lit.)
• Format: neat
• Chaîne SMILES: CO
• InChI: 1S/CH4O/c1-2/h2H,1H3
• Clé InChI: OKKJLVBELUTLKV-UHFFFAOYSA-N

Description

Description générale

Methanol (MeOH) is an organic solvent with a wide range of industrial applications. It is the main component of lithium batteries. It can be prepared by hydrogenation of CO₂ under various conditions. MeOH is a toxic alcohol employed for denaturing ethyl alcohol. A study reports the preparation of biodiesel from canola oil using methanol under supercritical conditions.

Methanol is an alcohol. Its 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.

Application

Methanol has been used during colony-forming unit (CFU) assay and histochemical staining.
Methanol may be used as:

• A solvent for cleaning the coverslips before silanization for DNA combing.
• An additive to improve the octane number of gasoline.
• A liquid fuel in direct methanol fuel cells (DMFCs).
• A solvent to synthesize methyl levulinate by acid catalyzed conversion of 5-hydroxymethylfurfural (HMF) and furfuryl alcohol (FA).
• A reactant to prepare dimethylcarbonate by reacting with CO₂ in the presence of graphene oxide-bound octahedral molybdenum cluster (GO-Cs₂Mo₆Brⁱ₈Br^a₆).

Methanol may be used 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 may be used in the isolation and quantitative determination of carotenes and xanthophylls from Capsicum annum pericarp extracts by HPLC.

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
• 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