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646377

Sigma-Aldrich

Methanol

≥99.9%, HPLC Plus, suitable for HPLC

Synonym(s):

Methyl alcohol

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About This Item

Linear Formula:
CH3OH
CAS Number:
Molecular Weight:
32.04
Beilstein:
1098229
EC Number:
MDL number:
UNSPSC Code:
12190000
PubChem Substance ID:
NACRES:
NA.05

product name

Methanol, HPLC Plus, ≥99.9%

grade

HPLC Plus

Quality Level

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

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

Target Organs

Eyes,Central nervous system

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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