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
179957
Metanolo
≥99.6%, Laboratory Reagent grade
Sinonimo/i:
Alcol metilico
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30,00 €
58,10 €
30,00 €
Informazioni su questo articolo
97.68 mmHg ( 20 °C)
Vai a
Nome del prodotto
Metanolo, Laboratory Reagent, ≥99.6%
InChI key
OKKJLVBELUTLKV-UHFFFAOYSA-N
InChI
1S/CH4O/c1-2/h2H,1H3
SMILES string
CO
grade
Laboratory Reagent
vapor density
1.11 (vs air)
vapor pressure
410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)
assay
≥99.6%
form
liquid
autoignition temp.
725 °F
expl. lim.
36 %
dilution
(for analytical testing)
impurities
≤0.01% alkalinity (as NH3)
≤0.03% acidity (as HCOOH)
≤0.1% water
evapn. residue
≤0.01%
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.)
format
neat
storage temp.
room temp
Quality Level
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Categorie correlate
1 of 4
Questo articolo | 179337 | 32213-M | 320390 |
|---|---|---|---|
| assay ≥99.6% | assay ≥99.8% | assay ≥99.8% (GC) | assay ≥99.8% |
| grade Laboratory Reagent | grade ACS reagent | grade ACS reagent, puriss. p.a. | grade ACS reagent |
| Quality Level 100 | Quality Level 100, 200 | Quality Level - | Quality Level 200 |
| form liquid | form liquid | form liquid | form liquid |
| refractive index n20/D 1.329 (lit.) | refractive index n20/D 1.329 (lit.) | refractive index n20/D 1.329 (lit.) | refractive index n20/D 1.329 (lit.) |
| impurities ≤0.01% alkalinity (as NH3), ≤0.1% water, ≤0.03% acidity (as HCOOH) | impurities H2SO4, passes test (darkened), 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 | impurities ≤0.00005% free alkali (as NH3), ≤0.0001% formaldehyde, ≤0.00025% KMnO4 red. matter (as O), ≤0.0005% non-volatile matter, ≤0.001% acetaldehyde, ≤0.001% acetone (GC), ≤0.05% water (Karl Fischer), ≤0.1% ethanol (GC) | impurities H2SO4, passes test (darkened), 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 |
Application
General description
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
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
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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