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270474

Sigma-Aldrich

Methanol

suitable for HPLC, gradient grade, 99.93%

Synonym(s):
Methyl alcohol
Linear Formula:
CH3OH
CAS Number:
Molecular Weight:
32.04
Beilstein:
1098229
EC Number:
MDL number:
PubChem Substance ID:

grade

gradient grade

Quality Level

vapor density

1.11 (vs air)

vapor pressure

410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)

description

gradient analysis <= 0.005 254nm

assay

99.93%

form

liquid

autoignition temp.

725 °F

purified by

sub-micron filtration

expl. lim.

36 %

technique(s)

HPLC: suitable

impurities

H2SO4, passes test (darkened)
≤0.001% acetaldehyde
≤0.001% formaldehyde
≤0.1% water

evapn. residue

<0.0003%

color

APHA: ≤10
clear

refractive index

n20/D 1.329 (lit.)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

solubility

H2O: passes test

density

0.791 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

λ: 203 nm Amax: 1.00
λ: 210 nm Amax: 0.60
λ: 220 nm Amax: 0.30
λ: 230 nm Amax: 0.15
λ: 240 nm Amax: 0.05
λ: 260-400 nm Amax: 0.01

suitability

passes test for HPLC

SMILES string

CO

InChI

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

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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Application

Meets ACS specifications.

Other Notes

Contains MnO4- reducers

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

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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