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/449/386/product-dating-information-mk.pdf
32221-M
Ethyl alcohol, pure
≥99.8% (GC), absolute, puriss. p.a.
Sinónimos:
Alcohol etílico
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178,00 €
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About This Item
178,00 €
Nombre del producto
Etanol, puriss. p.a., absolute, ≥99.8% (GC)
densidad de vapor
1.59 (vs air)
presión de vapor
44.6 mmHg ( 20 °C)
grado
absolute
puriss. p.a.
Ensayo
≥99.8% (GC)
Formulario
liquid
temp. de autoignición
683 °F
lim. expl.
19 %, 60 °F
técnicas
GC/GC: suitable
impurezas
furfural, in accordance
≤0.0001% free alkali (as NH3)
≤0.0001% heavy metals (as Pb)
≤0.0003% KMnO4 red. matter (as O)
≤0.0005% free acid (as CH3COOH)
≤0.001% acetone (GC)
≤0.001% aldehydes (as CH3CHO)
≤0.001% non-volatile matter
≤0.003% 2-propanol
≤0.003% carbonyl compounds (as CO)
≤0.02% methanol (GC)
≤0.05% iso-amyl alcohol
≤0.2% water (Karl Fischer)
índice de refracción
n20/D 1.3600 (lit.)
n20/D 1.3614-1.3618
pH
7 (20 °C, 10 g/L)
bp
78 °C (lit.)
mp
−114 °C (lit.)
trazas de catión
Al: ≤0.5 ppm
B: ≤0.02 ppm
Ba: ≤0.1 ppm
Ca: ≤0.5 ppm
Cd: ≤0.05 ppm
Co: ≤0.02 ppm
Cr: ≤0.02 ppm
Cu: ≤0.02 ppm
Fe: ≤0.1 ppm
Mg: ≤0.1 ppm
Mn: ≤0.02 ppm
Ni: ≤0.02 ppm
Pb: ≤0.1 ppm
Sn: ≤0.1 ppm
Zn: ≤0.1 ppm
cadena SMILES
CCO
idoneidad
complies for UV absorption
complies for appearance
complies for identity A
complies for identity B
passes test for reaction against H2SO4
Formato
neat
InChI
1S/C2H6O/c1-2-3/h3H,2H2,1H3
Clave InChI
LFQSCWFLJHTTHZ-UHFFFAOYSA-N
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Aplicación
Puede utilizarse en los estudios siguientes:
Nota al pie de página
Palabra de señalización
Danger
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Eye Irrit. 2 - Flam. Liq. 2
Código de clase de almacenamiento
3 - Flammable liquids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
55.4 °F - closed cup
Punto de inflamabilidad (°C)
13 °C - closed cup
Listados normativos
Los listados normativos se proporcionan para los productos químicos principalmente. Para los productos no químicos sólo se puede proporcionar información limitada. Si no hay ninguna entrada, significa que ninguno de los componentes está en la lista. Es obligación del usuario garantizar el uso seguro y legal del producto.
EU REACH Annex XVII (Restriction List)
Elija entre una de las versiones más recientes:
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How can I determine the shelf life / expiration / retest date of this product?
1 respuesta-
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 respuesta-
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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As this product is not denatured. Can we make it denatured by adding 1% Methanol in it. Request advice.
1 respuesta-
It is possible to denature Ethanol via the addition of Methanol. The final Methanol concentration is generally above 1%, frequently in the range of 5 to 10%.
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Sehr geehrte Damen und Herren, ist der Ethanol 32221-M (puriss. p.a., absolute, ≥99.8% (GC)) vergällt / denaturiert oder unvergällt / nicht-denaturiert? Leider ist mir das weder von der Homepage noch vom SDB endgültig ersichtlich. Beste Grüße!
1 respuesta-
This product is not denatured.
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Bonjour, Quelle est la différence entre la référence 32205-1L-M et la référence 32221-1L-M? Merci
1 respuesta-
These products are physically identical with the same minimum purity specification. Product 32205-M is reagent grade which is suitable for general lab applications. It meets some of the analytical specifications of European Pharmacopoeia and testing includes trace analysis. Product 32221-1L-M is Puriss p.a. grade meaning the testing is also extensive and includes trace analysis. The quality of these products is comparable.
Please see the links below to review the tests and specifications for each item.
33205 Specifications
https://www.sigmaaldrich.com/specification-sheet/SIGALD/3220532221 Specifications
https://www.sigmaaldrich.com/specification-sheet/SIGALD/32221¿Le ha resultado útil?
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