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34852-M

Sigma-Aldrich

Ethyl alcohol, pure

greener alternative

≥99.8%, suitable for HPLC, absolute

Synonym(s):

Ethyl alcohol

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About This Item

Linear Formula:
CH3CH2OH
CAS Number:
64-17-5
Molecular Weight:
46.07
Beilstein:
1718733
EC Number:
200-578-6
MDL number:
MFCD00003568
UNSPSC Code:
12190000
PubChem Substance ID:
329755062
NACRES:
NA.21
Assay:
≥99.8%
technique(s):
HPLC: suitable
bp:
78 °C (lit.)
vapor pressure:
44.6 mmHg ( 20 °C)
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Product Name

Ethanol, absolute, suitable for HPLC, ≥99.8%

vapor density

1.59 (vs air)

vapor pressure

44.6 mmHg ( 20 °C)

grade

absolute

Assay

≥99.8%

form

liquid

autoignition temp.

683 °F

expl. lim.

19 %, 60 °F

greener alternative product characteristics

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

technique(s)

HPLC: suitable

impurities

≤0.001% free acid (as CH3COOH)
≤0.001% non-volatile matter
≤0.2% water (Karl Fischer)
≤1 ppb fluorescence (quinine) at 254 nm
≤1 ppb fluorescence (quinine) at 365 nm

transmittance

210 nm, ≥20%
225 nm, ≥50%
240 nm, ≥80%
260 nm, ≥98%

refractive index

n20/D 1.3600 (lit.)

pH

7 (20 °C, 10 g/L)

bp

78 °C (lit.)

mp

−114 °C (lit.)

format

neat

greener alternative category

Aligned

SMILES string

CCO

InChI

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

InChI key

LFQSCWFLJHTTHZ-UHFFFAOYSA-N

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General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. This product is a bio-based ethanol and is aligned with the 5th principle of Green Chemistry "Safer Solvents and Auxiliaries" and 7th principle "Use of Renewable Feedstock".

Application

Ethanol may be used as follows:

  • Preparation of PANI/MnFe2O4 nanocomposite thin films to study their optical properties and capacitive behaviors
  • Preparation of Andrographis paniculata extracts for HPLC fingerprint analysis to study their composition and biological activities
  • As a mobile phase for the HPLC separation of paritaprevir, ritonavir, and ombitasvir in pharmaceutical dosage forms
  • To evaluate the anti-solvent effects of three solvents in order to quantify the paracetamol active pharmaceutical ingredient (API) and its two impurities precipitating out during washing

Caution

Pertains only in Germany: Nicht zu Fertigungszwecken1

Footnote

1Distribution and use of ethyl alcohol in Switzerland require a license from the Swiss Federal Alcohol Administration

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225,H319

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

55.4 °F - closed cup

Flash Point(C)

13 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
STBL4841
STBL4838
STBL4798
STBL4572
STBL4520

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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)

Questions

1–2 of 2 Questions  

  1. 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

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  2. 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

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