34860-M

Methanol

≥99.9%, suitable for HPLC

• Synonim(y): Methyl alcohol
• Wzór liniowy: CH₃OH
• Numer CAS: 67-56-1
• Masa cząsteczkowa: 32.04
• NACRES: NA.21
• PubChem Substance ID: 329755069
• UNSPSC Code: 12190000
• EC Number: 200-659-6
• MDL number: MFCD00004595
• Beilstein/REAXYS Number: 1098229
• eCl@ss: 39020101
• Assay: ≥99.9%
• Grade: HPLC grade
• Technique(s): HPLC: suitable
• Bp: 64.7 °C (lit.)
• Vapor pressure: 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)

Właściwości

• Nazwa produktu: Methanol, suitable for HPLC, ≥99.9%
• grade: HPLC grade
• vapor density: 1.11 (vs air)
• vapor pressure: 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)
• assay: ≥99.9%
• form: liquid
• autoignition temp.: 725 °F
• expl. lim.: 36 %
• technique(s): HPLC: suitable
• impurities: ≤0.0005% non-volatile matter, ≤1 ppb fluorescence (quinine) at 254 nm, ≤1 ppb fluorescence (quinine) at 365 nm, <0.03% water (Karl Fischer)
• evapn. residue: <0.0005%
• color: APHA: ≤10
• 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.)
• λ: neat
• UV absorption: 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
• SMILES string: CO
• InChI: 1S/CH4O/c1-2/h2H,1H3
• InChI key: OKKJLVBELUTLKV-UHFFFAOYSA-N

Opis

General description

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

Methanol (MeOH) has been used in the wholemount immunofluorescence studies of embryonic tissues.[1]
It may be used in the following studies:

• Colony forming unit-fibroblast assay of bone marrow mononuclear cells.[2]
• As solvent for the preparation of extracts of hyphae of Aspergillus for the estimation of gliotoxin by reversed phase-HPLC.[3]
• Immunofluorescence studies.[4]
• To compose the eluent for the ion-pair reverse-phase HPLC isolation of nucleotides and their decomposition products.[5]

Packaging

View returnable container options.

Preparation Note

Product filtered through a 0.2 μm filter

Other Notes

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

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

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

Legal Information

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

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Informacja o środkach bezpieczeństwa

• pictograms: GHS02,GHS06,GHS08
• signalword: Danger
• hcodes: H225,H301 + H311 + H331,H370
• pcodes: P210 - P233 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
• target_organs: Eyes,Central nervous system
• Klasa składowania: 3 - Flammable liquids
• wgk: WGK 2
• flash_point_f: 49.5 °F - closed cup
• flash_point_c: 9.7 °C - closed cup