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Merck

MX0482

Metanolo

≥99.9% (GC), suitable for gas chromatography (GC), suitable for EPA 601, for Purge & Trap OmniSolv®

Sinonimo/i:

Alcol metilico

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Informazioni su questo articolo

Formula condensata:
CH3OH
Numero CAS:
Peso molecolare:
32.04
UNSPSC Code:
41116121
EC Index Number:
200-659-6
MDL number:
Beilstein/REAXYS Number:
1098229
Assay:
≥99.9% (GC)
Technique(s):
gas chromatography (GC): suitable
Bp:
64.7 °C (lit.)
Vapor pressure:
128 hPa ( 20 °C), 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)

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Nome del prodotto

Metanolo, for Purge & Trap OmniSolv®

agency

suitable for EPA 601

Quality Level

vapor density

1.11 (vs air)

vapor pressure

128 hPa ( 20 °C), 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)

assay

≥99.9% (GC)

form

liquid

autoignition temp.

725 °F

expl. lim.

36 %

technique(s)

gas chromatography (GC): suitable

impurities

≤0.0002 meq/g Titrable base, ≤0.0003 meq/g Titrable acid, ≤0.05 ppm Volatile impurities (P&T) other organics, ≤0.1 ppm Volatile impurities (P&T) Methyl ethyl ketone

color

APHA: ≤10

refractive index

n20/D 1.329 (lit.)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

transition temp

flash point 9.7 °C

density

0.791 g/mL at 25 °C (lit.)

format

neat

shipped in

ambient

storage temp.

room temp

SMILES string

CO

InChI

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

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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General description

Methanol, also known as Methyl alcohol, is a colorless organic solvent commonly used to dissolve substances with high and medium polarity. It is also used as a starting material/solvent for synthesis.

Application

Methanol is used as a solvent
  • In the mobile phase to separate mercury species on a Zorbax C18 reverse phase column.
  • To wash the cartridges and as an eluent to extract the analytes during the solid-phase extraction (SPE) process.
  • A standard in the gas chromatography determinations of methanol content in alcoholic beverages.
Appropriate for trace environmental analysis.

Packaging

is packaged in 1L amber glass bottle

Analysis Note

Assay (GC): 99.9% min
Color (APHA): 10 max
Form: Clear liquid
Titrable acid: 0.0003meq/g max
Titrable base: 0.0002meq/g max
Volatile impurities (P&T) Methyl ethyl ketone: 0.1ppm max
Volatile impurities (P&T) other organics: 0.05ppm max
Evaporation Number: 1.9

Legal Information

OMNISOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

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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

Classe di stoccaggio

3 - Flammable liquids

wgk

WGK 2

flash_point_f

49.5 °F - closed cup

flash_point_c

9.7 °C - closed cup


Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

Visita l’Archivio dei documenti

Heterocyclic amines in aged and thermally treated pork longissimus dorsi muscle of normal and PSE quality
T Polak et al.
LWT--Food Science and Technology, 42, 504-513 (2009)
A rapid and accurate method for determination of methanol in alcoholic beverage by direct injection capillary gas chromatography
Wang, Mei-Ling, et al
Journal of food composition and analysis, 17, 187-196 (2004)
Determination of mercury species by the diffusive gradient in thin film technique and liquid chromatography-atomic fluorescence spectrometry after microwave extraction
Pavlna P et al.
Analytica Chimica Acta, 866, 21-26 (2015)

Contenuto correlato

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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