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Merck
CN

A6283

Acetic acid

glacial, ReagentPlus®, ≥99%

Synonym(s):

Glacial acetic acid

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About This Item

Linear Formula:
CH3CO2H
CAS Number:
64-19-7
Molecular Weight:
60.05
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
329770889
EC Number:
200-580-7
Beilstein/REAXYS Number:
506007
MDL number:
MFCD00036152

Key Documents

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Product Name

Acetic acid, glacial, ReagentPlus®, ≥99%

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

InChI

1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)

SMILES string

[F2C(F2C)13F3C]C(O)=O

vapor density

2.07 (vs air)

product line

ReagentPlus®

assay

≥99%

form

liquid

autoignition temp.

800 °F

expl. lim.

16 %, 92 °F
4 %, 59 °F

refractive index

n20/D 1.371 (lit.)

pH

2.5 (20 °C, 50 g/L)

bp

117-118 °C (lit.)

mp

16.2 °C (lit.)

solubility

alcohol: miscible(lit.)
carbon disulfide: insoluble(lit.)
glycerol: miscible(lit.)
water: miscible(lit.)

density

1.04 g/mL at 25 °C (lit.)

storage temp.

room temp

Quality Level

200

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Application

Acetic acid (AcOH) can be used as:      
  • A reaction solvent in many organic reactions such as bromination, hydrolysis, solvolysis, reductions, and hydrogenations.      
  • A reagent in the protonolysis of organometallic compounds.
  • An acetylating agent for the acetylation of electron-rich aromatic compounds.      
  • A catalyst to synthesize di(indolyl)methanes by the condensation reaction of indole and aromatic aldehydes.      
  • A solvent system to prepare 3,4-dihydropyrimidin-2(1H)-one derivative via Biginelli reaction of aromatic aldehydes, 1,3-dicarbonyl compounds, and urea in the presence of a boric acid catalyst.

Acetic acid can also be used in the following:     
  • Manganese(III) acetate/AcOH catalytic system is used in the conversion of alkenes to lactones.      
  • Iron salts/AcOH is used to oxidize 2-methylnaphthalene to 2-methyl-1-naphthol in the presence of H2O2.

Features and Benefits

  • Good stability towards many reagents     
  • Excellent solubility of organic compounds in this reagent

General description

Acetic acid is an aliphatic organic acid. It is a hygroscopic, corrosive liquid with a vinegar-like odor. It can be synthesized by oxidizing acetaldehyde in the presence of manganese or cobalt salts. It is utilized for synthesizing acetic anhydride, cellulose acetate and acetic esters. Its impact on the degradation of historic paper has been analyzed.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

FlameCorrosion
GHS02,GHS05

signalword

Danger

hcodes

H226,H314

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCX9633
MKCX5585
MKCX3281
MKCX3282
MKCV7157

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Ash M and Ash I.
Handbook of Preservatives, 266-266 (2004)
Eagleson M.
Concise Encyclopedia Chemistry, 5-5 (1994)
Effects of NO2 and acetic acid on the stability of historic paper.
Menart Eet al.
Cellulose, 21(5), 3701-3713 (2014)
Thermooxidative aging of polydicyclopentadiene in glassy state.
Richaud E, et al.
Polymer Degradation and Stability, 102, 95-104 (2014)
Maize Kernels-Fixation in FAA, Embedding, Sectioning and Feulgen Staining.
Kladnik A.
Bio-protocol, 3(15), e835-e835 (2013)
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