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154903

Sigma-Aldrich

Methanol

≥99.9%, ACS spectrophotometric grade, suitable for UV/Vis spectroscopy

Synonyma:

Methyl alcohol

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About This Item

Lineární vzorec:
CH3OH
Číslo CAS:
67-56-1
Molekulová hmotnost:
32.04
Beilstein/REAXYS Number:
1098229
EC Number:
200-659-6
MDL number:
MFCD00004595
UNSPSC Code:
12352104
eCl@ss:
39020101
PubChem Substance ID:
329750907
NACRES:
NA.21

product name

Methanol, ACS spectrophotometric grade, ≥99.9%

grade

ACS spectrophotometric grade

Quality Level

200

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)

UV/Vis spectroscopy: suitable

impurities

MnO4- reducers, passes test
≤0.0002 meq/g Titr. base
≤0.0003 meq/g Titr. acid
≤0.001% acetaldehyde
≤0.001% acetone
≤0.001% formaldehyde
≤0.1% water

evapn. residue

≤0.001%

color

APHA: ≤10
clear

refractive index

n20/D 1.329 (lit.)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

density

0.791 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

λ: 205 nm Amax: 1.00
λ: 210 nm Amax: 0.80
λ: 220 nm Amax: 0.40
λ: 230 nm Amax: 0.20
λ: 240 nm Amax: 0.10
λ: 260 nm Amax: 0.04
λ: 280-400 nm Amax: 0.01

application(s)

food and beverages

format

neat

storage temp.

room temp

SMILES string

CO

InChI

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

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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Související kategorie

General description

Thermochemical conversion of methanol to C2-C10 hydrocarbons in the presence of shape-selective zeolites has been reported. Its oxidation on Ru-Pt catalyst system by ruthenium ad-atoms has been proposed.

Application

Used as a solvent in:
  • Preparation of self-assembled monolayers (SAMs) of sulfur derivatives with bactericidal terminal fragments on gold surfaces prior to analytical characterization
  • Measurement of soluble absorption spectra of PTFE samples

Preparation Note

Product filtered through a 0.2 μm filter

signalword

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

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

49.5 °F - closed cup

flash_point_c

9.7 °C - closed cup

Osvědčení o analýze (COA)

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The conversion of methanol and other O-compounds to hydrocarbons over zeolite catalysts.
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J. Catal., 47(2), 249-259 (1977)
Electrocatalysis by ad-atoms: Part II. Enhancement of the oxidation of methanol on platinum by ruthenium ad-atoms.
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