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32221-M

Sigma-Aldrich

Ethyl alcohol, pure

Ethanol

≥99.8% (GC), absolute, puriss. p.a.

Synonyme(s) :

Alcool éthylique

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About This Item

Formule linéaire :
CH3CH2OH
Numéro CAS:
64-17-5
Poids moléculaire :
46.07
Beilstein:
1718733
Numéro CE :
200-578-6
Numéro MDL:
MFCD00003568
Code UNSPSC :
15101802
ID de substance PubChem :
329754105
Nomenclature NACRES :
NA.05
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Nom du produit

Éthanol, puriss. p.a., absolute, ≥99.8% (GC)

Densité de vapeur

1.59 (vs air)

Pression de vapeur

44.6 mmHg ( 20 °C)

Qualité

absolute
puriss. p.a.

Essai

≥99.8% (GC)

Forme

liquid

Température d'inflammation spontanée

683 °F

Limite d'explosivité

19 %, 60 °F

Technique(s)

GC/GC: suitable

Impuretés

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)

Indice de réfraction

n20/D 1.3600 (lit.)
n20/D 1.3614-1.3618

pH

7 (20 °C, 10 g/L)

pb

78 °C (lit.)

Pf

−114 °C (lit.)

Traces de cations

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

Chaîne SMILES 

CCO

Adéquation

complies for UV absorption
complies for appearance
complies for identity A
complies for identity B
passes test for reaction against H2SO4

Format

neat

InChI

1S/C2H6O/c1-2-3/h3H,2H2,1H3

Clé InChI

LFQSCWFLJHTTHZ-UHFFFAOYSA-N

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Application

De l′éthanol a été utilisé comme milieu de dispersion de nanoparticules d′argent déjà préparées.[1]
Il peut être utilisé :
  • Dans la synthèse hydrothermique d′une nanotige de ZnO monocristalline.[2]
  • Dans la synthèse de sulfonates de N-(N′dodécylcarboxamidométhyl)N,N,diméthylammoniopropane.[3]
  • Comme solvant en analyse cytofluorimétrique.[4]
  • Pour la préparation d′un colloïde de TiO2 (granulométrie = 20 nm).[5]

Note de bas de page

1La distribution et l′utilisation de l′alcool éthylique en Suisse nécessite une licence émise par la Régie fédérale des alcools.

Pictogrammes

FlameExclamation mark
GHS02,GHS07

Mention d'avertissement

Danger

Mentions de danger

H225,H319

Classification des risques

Eye Irrit. 2 - Flam. Liq. 2

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

55.4 °F - closed cup

Point d'éclair (°C)

13 °C - closed cup

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
SDBB2318
SDBB2319
SDBB1564
SDBB1563
STBL4836

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Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Francesca Filon Larese et al.
Toxicology, 255(1-2), 33-37 (2008-11-01)
There is a growing interest on nanoparticle safety for topical use. The benefits of nanoparticles have been shown in several scientific fields, but little is known about their potential to penetrate the skin. This study aims at evaluating in vitro
Fabrication of thin film dye sensitized solar cells with solar to electric power conversion efficiency over 10%.
Ito S, et al.
Thin Solid Films, 516(14), 4613-4619 (2008)
Christophe Tastet et al.
Proteomics, 3(2), 111-121 (2003-02-26)
Several zwitterionic detergents differing in their polar heads, linker parts and hydrophobia tail were synthesized and evaluated for their efficiency in protein solubilizers for two-dimensional electrophoresis. A model system consisting of human red blood cell ghosts was used for this
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Questions

1–5 of 5 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/449/386/product-dating-information-mk.pdf

      Helpful?

  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

      Helpful?

  3. As this product is not denatured. Can we make it denatured by adding 1% Methanol in it. Request advice.

    1 answer

    1. 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%.

      Helpful?

  4. 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 answer

    1. This product is not denatured.

      Helpful?

  5. Bonjour, Quelle est la différence entre la référence 32205-1L-M et la référence 32221-1L-M? Merci

    1 answer

    1. 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/32205

      32221 Specifications
      https://www.sigmaaldrich.com/specification-sheet/SIGALD/32221

      Helpful?

Reviews

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  1. Leeds
    • Review 1
    • Votes 0
    5 out of 5 stars.

    Ethanol

    Extremely quick turn around.................................

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  2. 1 Ratings-Only Review

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