A9967 Sigma-Aldrich

Glacial acetic acid

meets USP testing specifications

Synonym: Acetic acid, Glacial acetic acid



Related Categories Acids, Acids & Bases, Analytical/Chromatography, Chemical Synthesis, Core Bioreagents,
vapor density   2.07 (vs air)
assay   ≥99.5%
autoignition temp.   800 °F
expl. lim.   16 %, 92 °F
  4 %, 59 °F
impurities   Class III solvents, passes test
  Readily oxidizable substances, passes test
  ≤1.0 mg Nonvolatile residue
  <0.05 wt. % Formic acid
  <20 ppm Methyl acetate
refractive index   n20/D 1.371(lit.)
bp   117-118 °C(lit.)
mp   16.2 °C(lit.)
transition temp   transition temp ≥15.6 °C (Congealing temperature)
density   1.049 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): passes test
  sulfate (SO42-): passes test
cation traces   heavy metals: ≤5 ppm
suitability   meets USP testing specifications


Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Price and Availability

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
Precautionary statements 
UN 2789PSN1 3(8) / PGII
WGK Germany 
Flash Point(F) 
104 °F
Flash Point(C) 
40 °C

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option:
What is the molarity of Product A9967, Glacial acetic acid?
Glacial acetic acid is 17.4 M.
Product A9967, Glacial acetic acid, is a solid instead of a liquid. Is it ruined?
The melting point of glacial acetic acid is approx. 16°C. So it may freeze in shipment (or storage in a cold place).  Simply leave it in a warm place and it will melt.  This does not affect product quality at all.
Why is Product A9967 called glacial acetic acid?
The term "glacial" indicates the product is anhydrous acetic acid rather than an acetic acid solution. When the anhydrous liquid freezes, it can look like glacial ice.
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
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, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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