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Documentos Principais

459836

Sigma-Aldrich

Álcool etílico, puro

greener alternative
Ethyl alcohol, Pure

≥99.5%, anhydrous, 200 proof

Sinônimo(s):

Etanol, Etanol não desnaturado, Álcool absoluto

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About This Item

Fórmula linear:
CH3CH2OH
Número CAS:
Peso molecular:
46.07
Número CE:
Número MDL:
Código UNSPSC:
15101802
ID de substância PubChem:
NACRES:
NA.21
grau:
anhydrous
Ensaio:
≥99.5%
p.e.:
78.3 °C
Preço e disponibilidade não estão disponíveis no momento.

Nome do produto

Álcool etílico, puro, 200 proof, anhydrous, ≥99.5%

grau

anhydrous

Nível de qualidade

densidade de vapor

1.59 (vs air)

Ensaio

≥99.5%

Formulário

liquid

Lim. expl.

3.1-27.7 %

disponibilidade

not available in (Sales restictions may apply)

características do produto alternativo mais ecológico

Safer Solvents and Auxiliaries
Use of Renewable Feedstocks
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

concentração

200 proof

Impurezas

<0.005% water

resíduo de evaporação

<0.0005%

cor

colorless

pH

7 (20 °C, 10 g/L)

p.e.

78.3 °C

pf

-114 °C

densidade

0.789 g/mL at 20 °C

categoria alternativa mais ecológica

cadeia de caracteres SMILES

OCC

InChI

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

chave InChI

LFQSCWFLJHTTHZ-UHFFFAOYSA-N

Procurando produtos similares? Visita Guia de comparação de produtos

Descrição geral

Estamos comprometidos em trazer para você produtos alternativos mais ecológicos, que aderem a um ou mais dos 12 princípios de química ecológica (The 12 Principles of Greener Chemistry). O etanol é um solvente verde preferível do ponto de vista ambiental e, portanto, está alinhado com "Solventes e auxiliares mais seguros" e "Uso de matérias-primas renováveis". 
O álcool etílico puro é um etanol prova 200 não desnaturado. O etanol, um álcool primário, é uma matéria-prima importante para a síntese de vários compostos. Pode ser sintetizado tanto de melaço, por fermentação, ou por hidratação de etileno. Ele atua como uma fonte de hidrogênio e meio de reação durante a transferência de hidrogenação de compostos carbonila na presença de hidróxido de sódio.[1] Foi estudado o impacto de fumigação de etanol/água no desempenho de motores a diesel.[2] Solventes de grau anidro têm porcentagem extremamente baixa de água e baixos níveis de resíduos.

Aplicação

O etanol foi usado:
  • como solvente para lovastatina.[3]
  • como solvente durante a síntese de (S)-4-hidroxi-2-ceto-4-(2′-piridil)butirato.[4]
  • para fixar cortes de tecido em lâmina durante a microdissecção e captura a laser (LCM).[5]

Embalagem

Outras notas

Pode haver restrições à venda
Recipientes Pure-Pac® II requerem o acoplador Micromatic MacroValve para dispensação de solventes, Z560723.

Informações legais

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

luvas sugeridas para proteção de respingos

parte de substituição

Nº do produto
Descrição
Preços

Pictogramas

FlameExclamation mark

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Eye Irrit. 2 - Flam. Liq. 2

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

55.4 °F - closed cup

Ponto de fulgor (°C)

13 °C - closed cup

Equipamento de proteção individual

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number

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Etanol BioUltra, for molecular biology, &#8805;99.8%, (absolute alcohol, without additive, A15 o1)

Sigma-Aldrich

51976

Etanol

J Harry Sweigard et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 28(7), 3171-3182 (2014-03-29)
A defining feature in proliferative retinopathies is the formation of pathological neovessels. In these diseases, the balance between neovessel formation and regression determines blindness, making the modulation of neovessel growth highly desirable. The role of the immune system in these
Sukant Khurana et al.
Chemical senses, 38(4), 315-323 (2013-02-01)
We studied complete dose-response curves for 53 odorants in the third instar larvae of Drosophila melanogaster. All odorants, except one, elicited an attraction response. Some odorants also elicited a decrease from their peak response at higher concentrations. This concentration-dependent decrease
Matthew J Walters et al.
Nature protocols, 2(7), 1825-1830 (2007-07-21)
A procedure for the preparation of optically pure alpha-keto-gamma-hydroxy carboxylic acids through stereospecific aldol addition catalyzed by pyruvate aldolases from the Entner-Doudoroff and the DeLey-Doudoroff glycolytic pathways is described. This highly versatile fragment serves as a precursor for a variety
Assessment of a direct injection diesel engine fumigated with ethanol/water mixtures.
Morsy MH.
Energy Conversion and Management , 94, 406-414 (2015)
Sodium hydroxide-catalyzed transfer hydrogenation of carbonyl compounds and nitroarenes using ethanol or isopropanol as both solvent and hydrogen donor.
Wang D, et al.
J. Mol. Catal. A: Chem., 400, 14-21 (2015)

Artigos

Development and validation of a headspace SPME and GC-MS method to determine alcohol content in twenty different Kombucha tea samples.

Protocolos

This protocol is designed to allow for high throughput purification of pure genomic DNA from a variety of cultured cells and tissues using the GenElute 96 Well Tissue Genomic DNA Purification Kit.

The GenElute™ Blood Genomic DNA Kit Protocol provides a simple and convenient way to isolate pure genomic DNA from fresh or aged whole blood.

GenElute™ Bacterial Genomic DNA Kit protocol describes a simple and convenient way for the isolation of pure genomic DNA from bacteria.

The Extract-N-Amp™ Tissue PCR Kit contains all the reagents needed to rapidly extract and amplify genomic DNA from mouse tails and other animal tissues, buccal swabs, hair shafts, and saliva.

Conteúdo relacionado

Why should you have to choose between solvents that are ecological and those that are reliable? Enjoy both at once with our biorenewable and greener solutions. Cyrene™ solvent is a new dipolar aprotic alternative to common REACH restricted solvents, such as N methyl-2-pyrrolidone (NMP) and Dimethylformamide (DMF).

Questions

1–10 of 13 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. How do I find the lot number for these reagents? I just recently purchased a 500mL bottle of this. Is the lot umber the same as the "source"?

    1 answer
    1. The lot number may be referred to on the label as the batch or source. The terminology may vary by brand and product type.

      Helpful?

  4. Does Product 459836, Ethanol, contain any denaturants?

    1 answer
    1. This product does not contain any denaturants. A denaturant is an impurity (e.g. isopropyl alcohol, methyl alcohol, etc.) that is added to ethanol to make it unsuitable for consumption. Even though this ethanol is not denatured, it is still only suitable for research and development use and is not appropriate for human use products.

      Helpful?

  5. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  6. What is 190 proof and 200 proof ethanol?

    1 answer
    1. All non-denatured ethanol products have a proof associated with the product description. The proof is a measure of the water content of the ethanol portion of the product. The proof is calculated as two times (2 x) the actual ethanol concentration by volume.

      Helpful?

  7. Is Product 459836, Ethanol, DNase, RNase, and Protease free?

    1 answer
    1. This product is not tested for the presence of DNases, RNases, and proteases. However, Sigma-Aldrich does offer ethanol products that are tested for these impurities. Ethanol products that are part of the BioUltra product line, and for applications in molecular biology, are required to be DNase, RNase, protease, and phosphatase free.

      Helpful?

  8. Can you recommend a Solvent Extractor for organics from aqueous solution?

    1 answer
    1. Solvent extractors are often used for the quantitative extraction of organics from aqueous solutions and separations in immunoassays. The MIXXOR system has been applied successfully in many laboratory solvent extraction operations and is ideal for the rapid screening of alternative solvents for specific extraction problems.

      Helpful?

  9. How can I get help with the ATF paperwork for 190 and 200 proof ethanol?

    1 answer
    1. Because these non-denatured ethanol products are federally regulated, an ATF permit is required to purchase 190 and 200 proof ethanol. Sigma-Aldrich takes the hassle out of this process for you! There is no ATF paperwork needed or records to be kept on your part. Sigma-Aldrich holds the permit, and immediately pays the federal excise tax. For more regulatory information regarding the tax on ethanol, visit the U.S. Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives.

      Helpful?

  10. What are the options for drying solvents?

    1 answer
    1. Sigma-Aldrich offers a full range of high-purity solvents with extremely low water levels specifically manufactured for moisture sensitive Organic and Biotech applications.  Sigma-Aldrich also carries various drying agents such as molecular sieves, which are typically compatible with organic solvents.

      Helpful?

1–10 of 13 Questions  

Reviews

Active Filters

  1. Lowell, MA
    • Review 1
    • Votes 2
    5 out of 5 stars.

    Good product. As described by the vendor.

    Product as described. The SureSeal package is extremely useful to main the anhydrous solution.

    Helpful?

  2. 3 Ratings-Only Reviews

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