- Acetic anhydride
is the chemical compound with the formula (CH3CO)2O. Commonly
abbreviated Ac2O, it is one of the simplest acid anhydrides and is a
widely used reagent in organic synthesis.
- It is a colorless
liquid that smells strongly of acetic acid, which is formed by its
reaction with the moisture in the air.
- Acetic Anhydride is a
clear, colorless liquid with a very pungent, penetrating, vinegar-like
odor that combines with water to form acetic acid. It is soluble in
ether, chloroform and benzene.
- The solubility of
acetic anhydride in water at 20°C is 2.6 % wt. The acetic anhydride will
then slowly decompose to acetic acid.
- Acetic anhydride melts
at –73°C, boils at 139°C, and has a density of 1.080 g/mL at 15°C. It is
flammable with a flash point of 54°C.
- Acetic anhydride is
produced by carbonylation of methyl acetate.
- Acetic anhydride can by
prepared by the dehydration of acetic acid at 800°C.
- The reaction between
the acid chloride and a salt of acetic acid yields acetic anhydride and
a salt.
- Acetic anhydride is
manufactured in North America by two processes. Most of the production
uses the ketene - acetic acid technology, which involves thermal
cracking acetic acid to ketene and the subsequent reaction of the ketene
with additional acetic acid to form acetic anhydride. Methyl acetate
carbonylation is a second route. Some acetic acid is produced as a
co-product in the methyl acetate carbonylation process.
- Acetic anhydride,
largest application is for the conversion of cellulose to cellulose
acetate, which is a component of photographic film and other coated
materials.
- Acetic anhydride is
used in the production of aspirin, acetyl salicylic acid, which is
prepared by the acetylation of salicylic acid and it is also used as a
wood preservative.
- The primary use of
acetic anhydride is used in the manufacture of cellulose acetate for
films and plastic goods; about 75 percent of the acetic anhydride
produced annually in the United States is used for this purpose.
- Approximately 1.5
percent of the annual acetic anhydride production is used in the
synthesis of aspirin.
- Acetic anhydride other
uses include the manufacture of industrial chemicals, pharmaceuticals,
perfumes, plastics, synthetic fibers, explosives, and weed killers.
- Acetic anhydride reacts
with water, it is sometimes used as a dehydrating agent in reaction
mixtures where removal of water is necessary.
- Most acetic anhydride
is used captively in the production of cellulose acetate for filter tow
and fiber. Eastman capacity includes 1,200 million pounds of material
based on synthesis gas from coal, and 600 million pounds based on the
ketene process.
- About 42 percent of
acetic anhydride is consumed in cellulose acetate flake used to produce
filter tow.
- Acetic anhydride is a
mature product with over 85 percent of production going into cellulose
acetate flake, which in turn, serves well-established markets in
filament yarn, cigarette filter tow and cellulose ester plastics.
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General
- About acetic
anhydride
- Information about
acetic anhydride
- Acetic anhydride
- General information
about acetic anhydride
Process
- Acetic acid and acetic
anhydride
- The action of acetic
anhydride and pyridine on amino acids
- Labeling of high
density lipoproteins with acetic anhydride
- Liquid phase
acetylation of thioanisole with acetic anhydride to 4-(methylthio)
acetophenone (4-MTAP) using H-beta catalyst
- Acetic anhydride
- Nitration of
Phenanthrene in Acetic Anhydride
- Synthesis of Esters
Using Acetic Anhydride
Patent
- Recovery of acetic
anhydride
- Process for the
purification of crude acetic anhydride
- Process for the
separation of ethylidene diacetate from acetic anhydride
- Process for the
manufacture of acetic anhydride
- Acetone removal from
acetic anhydride production process
- Acetic anhydride and
acetate ester co-production
- Process for the
preparation of acetic anhydride from methyl formate
- Preparation of acetic
anhydride
- Process for the
preparation of acetic acid and acetic anhydride
Material Safety Data
Sheet
- Acetic Anhydride
- Material safety data
sheet on acetic anhydride
- MSDS for acetic
anhydride
- Acetic anhydride
reagent
- Safety data for acetic
anhydride
- Acetic acid safety data
sheet
Company
Profiles
- Company From
Argentina
- Company From
China
- Company From
Delhi
- Company From
India
- Company From
Texas
- Company From USA
Technology
- Newer gasification and
liquefaction technology
- Radiolabeling of
Proteins and Viruses in Vitro by Acetylation with Radioactive Acetic
Anhydride
- Reaction Calorimetry as
a Tool in Process Development, Research and Safety Analysis
- Carbohydrate
histochemistry studied by acetylation techniques
Consultants
- Consultant from
California
- Consultant from
Illinois
- Consultant from
Minnesota
- Consultant from
UK
- Consultant from
India
Plant
- Plant from India
- Plant from
Mumbai
- Plant from
Punjab
- Plant from Saudi
Arabia
- Plant from
Sweden
- Plant from Texas
Turnkey Offers
- Turnkey from
India
- Turnkey from Saudi
Arabia
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Function
- A Green Catalyst for
Solventless Acetylation of Alcohols and Phenols with Acetic
Anhydride
- An efficient
Acetylation of Primary and Secondary Aliphatic Alcohols with Acetic
Anhydride in the Presence of Graphite Bisulphate
- Holoprotein Formation
of Human
Chorionic Gonadotropin: Differential
Trace Labeling with
Acetic Anhydride
- Reaction of
tetrahydrofuran and acetic anhydride catalyzed by electro generated
acid
- Simultaneous
quantification of lyso-neutral glycosphingolipids and neutral
glycosphingolipids by N-acetylation with acetic anhydride
- Synthesis of Banana Oil
Using Green Chemistry
Products
- Product description of
acetic anhydride
- Acetic anhydride
- Acetic anhydride
ReagentPlus®, ≥99%
- Acetic anhydride
product specification
Applications
- Acetylation of Raw
Cotton for Oil Spill Cleanup Application
- Synthesizing aspirin:
The acetylation of salicylic acid
- Synthesizing Aspirin
and Oil of Wintergreen
- Preparation of
aspirin
- Wood preservation by a
mixed anhydride treatment
- On the mechanism of
cellulose acetylation
Report
- Acetic anhydride
- Investigation of Solid
Wood Impregnation with Acetic Anhydride
by Mathematical
Modelling
- Nanjing Chemical
Complex Grand Opening Investor Presentation
- Project data on eastman
chemical company's chemicals from coal complex in kingsport
- Occupational safety and
health guideline for acetic anhydride
- Acetylation of
wood
- Acetic anhydride
Hazards
- Acetic anhydride
- Safety data on acetic
anhydride
- Information on acetic
anhydride
Raw Material
Suppliers
- Methyl iodide
suppliers
- Suppliers of Methyl
iodide in India
- Methyl acetate
suppliers
- Methyl acetate selling
leads
- Acetic acid
suppliers
Equipment
Suppliers
- Acetic anhydride
- Air Sampling Pump
suppliers
- Air check 2000
- Air flow
calibrators
- Coated Filters in
Preloaded Cassettes suppliers
- Pocket pump
series
- AirChek XR5000
suppliers
Suppliers &
Buyers
- Suppliers of acetic
anhydride
- Selling leads of acetic
anhydride
- Exporters of acetic
anhydride
- Acetic anhydride
suppliers
- Acetic anhydride
selling leads
- Acetic anhydride
buyers
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