MX0486

Methanol

OmniSolv^® LC-MS

• Synonym(s): Methyl alcohol
• Linear Formula: CH₃OH
• CAS Number: 67-56-1
• Molecular Weight: 32.04
• Beilstein: 1098229
• MDL number: MFCD00004595
• EC Index Number: 200-659-6

Properties

• vapor density: 1.11 (vs air)
• Quality Level: 100
• vapor pressure: 128 hPa ( 20 °C); 410 mmHg ( 50 °C); 97.68 mmHg ( 20 °C)
• product line: OmniSolv^®
• Assay: ≥99.9% (GC)
• form: liquid
• autoignition temp.: 725 °F
• expl. lim.: 36 %
• technique(s): LC/MS: suitable
• impurities: ≤0.05% Water (H₂O); ≤0.2 μeq/g Titrable base; ≤0.3 μeq/g Titrable acid; ≤50 ppb p-nitrophenol (LC/MS); ≤50 ppb reserpine (LC/MS)
• evapn. residue: ≤1 ppm
• color: APHA: ≤10
• refractive index: n20/D 1.329 (lit.)
• bp: 64.7 °C (lit.)
• mp: −98 °C (lit.)
• transition temp: flash point 9.7 °C
• density: 0.791 g/mL at 25 °C (lit.)
• UV cutoff: ≤205 nm
• UV absorption: λ: 210 nm A_max: ≤0.3; λ: 220 nm A_max: ≤0.1; λ: 230 nm A_max: ≤0.04; λ: 240 nm A_max: ≤0.03; λ: 250 nm A_max: ≤0.01; λ: 270 nm A_max: ≤0.01; λ: 400-280 nm A_max: ≤0.005
• format: neat
• shipped in: ambient
• storage temp.: room temp
• SMILES string: CO
• InChI: 1S/CH4O/c1-2/h2H,1H3
• InChI key: OKKJLVBELUTLKV-UHFFFAOYSA-N

Description

Application

OmniSolv^® LC-MS

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Assay (GC)99.9% minColor (APHA)10 maxEvaporation residue1ppm maxFiltered through 0.2 µm filterTo pass testFluorescence as quinine at 254 nm1ppb maxFluorescence as quinine at 365 nm1ppb maxFormClear liquidGradient at 235 nm1mAU maxGradient at 254 nm1mAU maxIdentity (IR-spectrum)ConformsLC/MS Purity (p-nitrophenol)50ppb maxLC/MS Purity (reserpine)50ppb maxMetals, suitable for LC/MSTo pass testTitrable acid0.3µeq/g maxTitrable base0.2µeq/g maxUV Abs. at 210 nm0.3AU maxUV Abs. at 220 nm0.1AU maxUV Abs. at 230 nm0.04AU maxUV Abs. at 240 nm0.03AU maxUV Abs. at 250 nm0.01AU maxUV Abs. at 270 nm0.01AU maxUV Abs. at 400-280 nm0.005AU maxUV Cut-off205nm maxWater (H2O)0.05% max

Evaporation Number: 1.9

Legal Information

OMNISOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS02,GHS06,GHS08
• Signal Word: Danger
• Hazard Statements: H225 - H301 + H311 + H331 - H370
• Precautionary Statements: 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
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): 49.5 °F - closed cup
• Flash Point(C): 9.7 °C - closed cup