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32221-M

Sigma-Aldrich

Ethyl alcohol, pure

Ethanol

≥99.8% (GC), absolute, puriss. p.a.

Synonym(e):

Ethylalkohol

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About This Item

Lineare Formel:
CH3CH2OH
CAS-Nummer:
64-17-5
Molekulargewicht:
46.07
Beilstein:
1718733
EG-Nummer:
200-578-6
MDL-Nummer:
MFCD00003568
UNSPSC-Code:
15101802
PubChem Substanz-ID:
329754105
NACRES:
NA.05
bp:
78 °C (lit.)
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Produktbezeichnung

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

Dampfdichte

1.59 (vs air)

Dampfdruck

44.6 mmHg ( 20 °C)

Qualität

absolute
puriss. p.a.

Assay

≥99.8% (GC)

Form

liquid

Selbstzündungstemp.

683 °F

Expl.-Gr.

19 %, 60 °F

Methode(n)

GC/GC: suitable

Verunreinigungen

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)

Brechungsindex

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

pH-Wert

7 (20 °C, 10 g/L)

bp

78 °C (lit.)

mp (Schmelzpunkt)

−114 °C (lit.)

Kationenspuren

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

SMILES String

CCO

Eignung

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

InChIKey

LFQSCWFLJHTTHZ-UHFFFAOYSA-N

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Verwandte Kategorien

Anwendung

Ethanol was used as dispersion medium for already prepared silver nanoparticles.[1]
It may be used in the following studies:
  • Hydrothermal synthesis of single crystal ZnO nanorod.[2]
  • Synthesis of N-(N′dodecylcarboxamidomethyl)N,N,dimethyl ammonio propane sulfonates.[3]
  • As solvent for cytofluorimetric analysis.[4]
  • Preparation of TiO2 colloid (particle size = 20nm).[5]

Fußnote

1Der Vertrieb und der Einsatz von Ethylalkohol in der Schweiz erfordert eine Lizenz der Eidgenössischen Alkoholverwaltung

Piktogramme

FlameExclamation mark
GHS02,GHS07

Signalwort

Danger

H-Sätze

H225,H319

Gefahreneinstufungen

Eye Irrit. 2 - Flam. Liq. 2

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 1

Flammpunkt (°F)

55.4 °F - closed cup

Flammpunkt (°C)

13 °C - closed cup

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
SDBB2318
SDBB2319
SDBB1564
SDBB1563
STBL4836

Die passende Version wird nicht angezeigt?

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

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
2 Reviews This action will navigate to reviews.

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

Active Filters

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

    Ethanol

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

    Helpful?

  2. 1 Ratings-Only Review

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