Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

32221-M

Sigma-Aldrich

Ethyl alcohol, pure

Ethanol

≥99.8% (GC), absolute, puriss. p.a.

Synonym(s):

Ethyl alcohol

Sign Into View Organizational & Contract Pricing
All Photos(1)

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:
15101802
PubChem Substance ID:
329754105
NACRES:
NA.05
technique(s):
GC/GC: suitable
bp:
78 °C (lit.)
vapor pressure:
44.6 mmHg ( 20 °C)
Pricing and availability is not currently available.

Product Name

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

vapor density

1.59 (vs air)

vapor pressure

44.6 mmHg ( 20 °C)

grade

absolute
puriss. p.a.

Assay

≥99.8% (GC)

form

liquid

autoignition temp.

683 °F

expl. lim.

19 %, 60 °F

technique(s)

GC/GC: suitable

impurities

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)

refractive index

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

pH

7 (20 °C, 10 g/L)

bp

78 °C (lit.)

mp

−114 °C (lit.)

cation traces

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

suitability

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

InChI key

LFQSCWFLJHTTHZ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

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]

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SDBB2318
SDBB2319
SDBB1564
SDBB1563
STBL4836

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service