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Sigma-Aldrich

Methanol

HPLC Plus, ≥99.9%

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Synonym(s):
Methyl alcohol
Linear Formula:
CH3OH
CAS Number:
67-56-1
Molecular Weight:
32.04
Beilstein:
1098229
EC Number:
200-659-6
MDL number:
MFCD00004595
PubChem Substance ID:
329759987
NACRES:
NA.05

grade

HPLC Plus

Quality Level

100

Agency

suitable for ASTM® 7968
suitable for ASTM® 7979
suitable for DIN 38407-42
suitable for EPA 1621
suitable for EPA 1633
suitable for EPA 533
suitable for EPA 537.1
suitable for EPA 8327
suitable for EPA ACB B21-02
suitable for EPA ACB B23-05b
suitable for EPA OTM-45
suitable for GB 31604.35-2016
suitable for GB 5009.253-2016
suitable for ISO 21675 2019
suitable for ISO 25101
suitable for ISO/CEN 15968-2010

reg. compliance

suitable for FDA C-010.02

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

≤0.0002 meq/g Titr. base
≤0.0003 meq/g Titr. acid
≤0.001% Cabonyl Compounds
<0.05% water

evapn. residue

<0.0001%

color

APHA: ≤10

refractive index

n20/D 1.329 (lit.)

bp

64.7 °C (lit.)
64.7 °C

mp

−98 °C (lit.)

solubility

benzene: miscible(lit.)
ethanol: miscible(lit.)
water: miscible(lit.)

density

0.791 g/mL at 25 °C (lit.)
0.791 g/mL at 25 °C

SMILES string

CO

HPLC-gradient

≤2 mAU at 230 nm
≤5 mAU at 254 nm

λ

1 cm path, H2O reference

UV absorption

λ: 205 nm Amax: 1.0
λ: 210 nm Amax: 0.80
λ: 220 nm Amax: 0.20
λ: 230 nm Amax: 0.10
λ: 250 nm Amax: 0.02
λ: 400 nm Amax: 0.005

format

neat

InChI

1S/CH4O/c1-2/h2H,1H3

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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General description

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. Shape-selective zeolite-assisted transformation of methanol to C2-C10 hydrocarbons has been studied. 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.

Application

Suitable for HPLC, spectrophotometry, and some LC-MS applications

Packaging

View returnable container options.

Preparation Note

Product filtered through a 0.2 μm filter

Other Notes

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

Legal Information

ASTM is a registered trademark of American Society for Testing and Materials
Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

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

Regulatory Information

危险化学品

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Methanol.
R Von Burg
Journal of applied toxicology : JAT, 14(4), 309-313 (1994-07-01)
Nomaan M Rezayee et al.
Journal of the American Chemical Society, 137(3), 1028-1031 (2015-01-17)
This Communication describes the hydrogenation of carbon dioxide to methanol via tandem catalysis with dimethylamine and a homogeneous ruthenium complex. Unlike previous examples with homogeneous catalysts, this CO2-to-CH3OH process proceeds under basic reaction conditions. The dimethylamine is proposed to play
CO2 Hydrogenation to Methanol on Supported Au Catalysts under Moderate Reaction Conditions: Support and Particle Size Effects.
Hartadi Y, et al.
ChemSusChem, 8(3), 456-465 (2015)
CO2 hydrogenation to methanol over CuZnGa catalysts prepared using microwave-assisted methods.
Cai W, et al.
Catalysis Today, 242, 193-199 (2015)
Combining Low-Pressure CO2 Capture and Hydrogenation To Form Methanol.
Khusnutdinova JR, et al.
ACS Catalysis, 5(4), 2416-2422 (2015)
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