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34940 Sigma-Aldrich

Methanol

puriss. p.a., Reag. Ph. Eur., dried, H2O, ≥99.9% (GC)

DOWNLOAD MSDS (PDF)

Synonym: Methyl alcohol

  • CAS Number 67-56-1

  • Linear Formula CH3OH

  • Molecular Weight 32.04

  •  Beilstein Registry Number 1098229

  •  EC Number 200-659-6

  •  MDL number MFCD00004595

  •  PubChem Substance ID 24861670

Methanol puriss. p.a., Reag. Ph. Eur., dried, H2O, ≥99.9% (GC)
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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, M-N, Puriss p.a. ACS, Methanol,
grade   Reag. Ph. Eur.
vapor density   1.11 (vs air)
vapor pressure   410 mmHg ( 50 °C)
  97.68 mmHg ( 20 °C)
grade   puriss. p.a.
assay   ≥99.9% (GC)
autoignition temp.   725 °F
quality   H2O
  dried
expl. lim.   36 %
total impurities   ≤0.00005% free alkali (as NH3)
  ≤0.0001% formaldehyde
  ≤0.00025% KMnO4 red. matter (as O)
  ≤0.001% acetaldehyde (GC)
  ≤0.001% acetone (GC)
  ≤0.001% non-volatile matter
  ≤0.005% water (Karl Fischer)
  ≤0.1% ethanol (GC)
refractive index   n20/D 1.329(lit.)
bp   64.7 °C(lit.)
mp   −98 °C(lit.)
density   0.791-0.793 g/mL at 20 °C
  0.791 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): ≤0.5 mg/kg
  sulfate (SO42-): ≤1 mg/kg
cation traces   Al: ≤0.5 mg/kg
  B: ≤0.02 mg/kg
  Ba: ≤0.1 mg/kg
  Ca: ≤0.5 mg/kg
  Cd: ≤0.05 mg/kg
  Co: ≤0.02 mg/kg
  Cr: ≤0.02 mg/kg
  Cu: ≤0.01 mg/kg
  Fe: ≤0.1 mg/kg
  Mg: ≤0.1 mg/kg
  Mn: ≤0.01 mg/kg
  Ni: ≤0.02 mg/kg
  Pb: ≤0.02 mg/kg
  Sn: ≤0.1 mg/kg
  Zn: ≤0.1 mg/kg
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