Pular para o conteúdo
Merck

Pular para

459828

Álcool etílico, puro

greener alternative

≥99.5%, HPLC/spectrophotometric grade, 200 proof, suitable for UV/Vis spectroscopy and HPLC

Ethyl alcohol, Pure
1 of 1 reviewers received a sample product or took part in a promotion

Sinônimo(s):

Etanol, Etanol não desnaturado, Álcool absoluto

Faça login para ver os preços organizacionais e de contrato.

Selecione um tamanho

Alterar visualização
Tamanho da embalagemSKUDisponibilidadePreço

Sobre este item

Fórmula linear:
CH3CH2OH
Número CAS:
Peso molecular:
46.07
UNSPSC Code:
12190000
PubChem Substance ID:
NACRES:
NA.21
EC Number:
200-578-6
MDL number:
Assay:
≥99.5%
Technique(s):
HPLC: suitable, UV/Vis spectroscopy: suitable
Bp:
78.3 °C
Vapor pressure:
57.26 hPa ( 19.6 °C)
Preço e disponibilidade não estão disponíveis no momento.
Assistência Técnica
Precisa de ajuda? Nossa equipe de cientistas experientes está à sua disposição.
Estamos aqui para ajudar


Nome do produto

Álcool etílico, puro, 200 proof

vapor density

1.59 (vs air)

Quality Level

vapor pressure

57.26 hPa ( 19.6 °C)

assay

≥99.5%

form

liquid

expl. lim.

3.1-27.7 %

greener alternative product characteristics

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

sustainability

Greener Alternative Product

concentration

200 proof

technique(s)

HPLC: suitable, UV/Vis spectroscopy: suitable

impurities

≤0.2% water

evapn. residue

<0.001%

pH

7.0 (20 °C, 10 g/L)

bp

78.3 °C

mp

-114 °C

density

0.789 g/mL at 20 °C

λ

H2O reference

UV absorption

λ: 210 nm Amax: 0.40, λ: 220 nm Amax: 0.25, λ: 230 nm Amax: 0.15, λ: 240 nm Amax: 0.05, λ: 270-400 nm Amax: 0.01

greener alternative category

SMILES string

OCC

InChI

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

InChI key

LFQSCWFLJHTTHZ-UHFFFAOYSA-N

General description

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. Foi estudado o impacto de fumigação de etanol/água no desempenho de motores a diesel. O solvente de grau espectrofotométrico é de alta pureza com baixa absorção UV.
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". 
Os preços incluem o imposto federal.

Application

Álcool etílico (etanol) puro foi usado para preparar:
  • solução de etanol para síntese de Ga-68 DOTATATE [DOTA-(Tir3)-octreotato (onde DOTA = ácido 1,4,7,10-tetra-azaciclo- dodecano-1,4,7,10-tetracético)] por um sistema de síntese automatizada.
  • Solução estoque de ácido aristolóquico para análise por espectrofotometria.[1]
  • Partículas de sílica nucleares por um método de Stöber modificado.
  • A solução de polivinilpirrolidona (PVP) em combinação com água para síntese de fibras ultrafinas de PVP por um método de assoprar (ar) na solução.

Packaging

Frasco-M para solventes
Como líder global em reagentes de laboratório, estamos sempre à procura de novas formas de otimizar a segurança dos nossos produtos. O design recém-desenvolvido do frasco de solvente de 4L apresenta tecnologia de vedação avançada que elimina vazamentos para tornar o manuseio de solventes mais seguro e mais conveniente do que nunca.
Veja todos os novos recursos aqui!

Other Notes

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

Legal Information

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

Comparar Itens Semelhantes

Ver Comparação Total

Mostrar diferenças

1 of 1

Este Item
459836493546792799
technique(s)

HPLC: suitable, UV/Vis spectroscopy: suitable

technique(s)

-

technique(s)

-

technique(s)

-

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

assay

≥99.5%

assay

≥99.5%

assay

≥99.50%

assay

≥95.0%

form

liquid

form

liquid

form

-

form

liquid

vapor density

1.59 (vs air)

vapor density

1.59 (vs air)

vapor density

1.59 (vs air)

vapor density

1.59 (vs air)

vapor pressure

57.26 hPa ( 19.6 °C)

vapor pressure

57.26 hPa ( 19.6 °C)

vapor pressure

-

vapor pressure

-


Still not finding the right product?

Explore all of our products under Álcool etílico, puro


pictograms

FlameExclamation mark

signalword

Danger

hcodes

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Classe de armazenamento

3 - Flammable liquids

flash_point_f

55.4 °F - closed cup

flash_point_c

13 °C - closed cup



Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number

Não está vendo a versão correta?

Se precisar de uma versão específica, você pode procurar um certificado específico pelo número do lote ou da remessa.

Já possui este produto?

Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.

Visite a Biblioteca de Documentos


Protocolos

HPLC separation of 17 important cannabinoids including CBD, delta 9 THC and THCA. Read the application note.

Artigos

Simultaneous LC-MS/MS determination of vitamins D₂ and D₃ in infant milk powder meeting GB 5009.296-2023 criteria for accuracy and sensitivity.

A workflow for the sample preparation of hemp bud, hemp oil, chocolate, gummy, candy, and cream for the HPLC-PDA separation and analysis of 17 cannabinoids.

HPLC-DAD workflow analyzes 14 cannabinoids in hemp extracts in 10 minutes using Chromolith columns for robust performance.

Ver todos os artigos

Conteúdo relacionado

Explore greener solvents including bio-based drop-in replacements, alternative solvents, and ethanol, engineered for sustainable chemistry.


In vivo photothermal treatment by the peritumoral injection of macrophages loaded with gold nanoshells.
Yang TD, et al.
Biomedical Optics Express, 7(1), 185-193 (2016)
William A Trujillo et al.
Journal of AOAC International, 89(4), 942-959 (2006-08-19)
The presence of aristolochic acid in some dietary supplements is a concern to regulators and consumers. A method has been developed, by initially using a reference method as a guide, during single laboratory validation (SLV) for the determination of aristolochic
Generation of polymer ultrafine fibers through solution (air-) blowing.
Zhang L, et al.
Journal of Applied Polymer Science, 114(6), 3479-3486 (2009)



Número de item de comércio global

SKUGTIN
459828-20L-P204061838227591
459828-20L04061837479151
459828-20L-N204061837479168
459828-1L04061837479144
459828-2L04061837479175
459828-6X1L04061837479182
459828-4L04061832343358
459828-4X4L04061832343365

Questions

1–10 of 10 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/418/501/product-dating-information-06-25-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. What is the expiration date of Ethyl Alcohol SHBQ4896/459828-1L?

    1 answer
    1. This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one year warranty from the date of shipment. For more information you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

      Helpful?

  4. 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?

  5. 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?

  6. 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?

  7. Who do I contact about larger solvent volume needs?

    1 answer
    1. Email us at [email protected] or visit Sigma-Aldrich Fine Chemicals for development and manufacturing-scale inquiries: [email protected]

      Helpful?

  8. What apparatus do you recommend for HPLC solvent filtration?

    1 answer
    1. The Sigma-Aldrich Vacuum Filtration Assembly gives you all the components you need including: funnel top, fritted glass funnel support, filtration flask, aluminum clamp, and silicone stopper.  The Acrodisc Syringe Filters offer high quality filtration for analytical samples, certified for HPLC to ensure low extractable and available in a broad range of membranes to meet sample compatibility requirements.

      Helpful?

  9. 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?

  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?

Reviews

Active Filters

    • Review 1
    • Votes 2
    5 out of 5 stars.

    Ethyl Alcohol, Pure

    This is our stock item and I order regularly. So far I heard no complaint from researchers.

    Helpful?