Passa al contenuto
Merck
Tutte le immagini(1)

Documenti fondamentali

Visualizza tutta la documentazione

32221-M

Sigma-Aldrich

Ethyl alcohol, pure

Ethanol

≥99.8% (GC), absolute, puriss. p.a.

Sinonimo/i:

Alcol etilico

Autenticatiper visualizzare i prezzi riservati alla tua organizzazione & contrattuali
Tutte le immagini(1)

About This Item

Formula condensata:
CH3CH2OH
Numero CAS:
64-17-5
Peso molecolare:
46.07
Beilstein:
1718733
Numero CE:
200-578-6
Numero MDL:
MFCD00003568
Codice UNSPSC:
15101802
ID PubChem:
329754105
NACRES:
NA.05
Prezzi e disponibilità al momento non sono disponibili

Nome del prodotto

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

Densità del vapore

1.59 (vs air)

Tensione di vapore

44.6 mmHg ( 20 °C)

Grado

absolute
puriss. p.a.

Saggio

≥99.8% (GC)

Stato

liquid

Temp. autoaccensione

683 °F

Limite di esplosione

19 %, 60 °F

tecniche

GC/GC: suitable

Impurezze

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 di rifrazione

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

pH

7 (20 °C, 10 g/L)

P. ebollizione

78 °C (lit.)

Punto di fusione

−114 °C (lit.)

Cationi in tracce

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

Stringa SMILE

CCO

Compatibilità

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
LFQSCWFLJHTTHZ-UHFFFAOYSA-N

Cerchi prodotti simili? Visita Guida al confronto tra prodotti

Applicazioni

L'etanolo è stato usato come mezzo di dispersione per nanoparticelle d'argento.[1]
Può essere utilizzato nei seguenti studi:
  • Sintesi idrotermale di nanobarre di ZnO monocristallo[2]
  • Sintesi di N-(N′dodecilcarbossiamidometil)N,N,dimetilammoniopropanosolfonati.[3]
  • Come solvente per analisi citofluorimetriche.[4]
  • Nella preparazione di TiO2 colloidale (dimensione delle particelle= 20 nm).[5]

Nota a piè di pagina

1La distribuzione e l′uso di alcol etilico in Svizzera richiedono una licenza dalla Amministrazione Federale Svizzera Alcol.

Pittogrammi

FlameExclamation mark
GHS02,GHS07

Avvertenze

Danger

Indicazioni di pericolo

H225,H319

Classi di pericolo

Eye Irrit. 2 - Flam. Liq. 2

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

55.4 °F - closed cup

Punto d’infiammabilità (°C)

13 °C - closed cup

Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number
SDBB2839
SDBB2318
SDBB2319
SDBB1564
SDBB1563

Non trovi la versione di tuo interesse?

Se hai bisogno di una versione specifica, puoi cercare il certificato tramite il numero di lotto.

Cerca un COA

Possiedi già questo prodotto?

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

Visita l’Archivio dei documenti

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

Il team dei nostri ricercatori vanta grande esperienza in tutte le aree della ricerca quali Life Science, scienza dei materiali, sintesi chimica, cromatografia, discipline analitiche, ecc..

Contatta l'Assistenza Tecnica.