Name: ACETIC ANHYDRIDE ACS REAGENT >=98.0% (C005B-006749)
SKU: C005B-006749
Availability: OutOfStock

ACETIC ANHYDRIDE ACS REAGENT >=98.0% (C005B-006749)

Catalog No.

C005B-006749

Manufacturer No.

242845-1KG

Manufacturer Name

Sigma-Aldrich

Quantity

Unit of Measure

Acetic anhydride is an organic solvent. On dissolution in water it undergoes solvolysis to afford acetic acid.

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Description
Specifications

General description

Acetic anhydride is an organic solvent. On dissolution in water it undergoes solvolysis to afford acetic acid. It is widely employed for the acetylation of various alcohols. Wacher process (starting reagent + a ketene) and Knapsack process (starting reagent = acetaldehyde) have been reported for the industrial preparation of acetic anhydride.

Application

Acetic anhydride has been used as one of the reaction components in the preparation of:

2-acetylamino-5-aminobenzenesulfonic acid
3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene (BSBCA)
10-acetoxy-9-nitro-octadecanoic acid, allyl ester
9-nitro-oleic acid

It may be used for acetylation of anisole over HBEA zeolite in a batch reactor.

Molecular Weight: 102.09. Empirical Formula: C₄H₆O₃. linearFormula: (CH₃CO)₂O. grade: ACS reagent. Quality Level: 200. vapor density: 3.5 (vs air). vapor pressure: 10 mmHg ( 36 Â°C), 4 mmHg ( 20 Â°C). Assay: ≥. 98.0%. form: liquid. autoignition temp.: 629 . Â°F. expl. lim.: 10.3 . %. impurities: MnO₄^- reducers, passes test. evapn. residue: ≤. 0.003%. refractive index: n20/D 1.390 (lit.). bp: 138-140 . Â°C (lit.). mp: −. 73 . Â°C (lit.). solubility: H₂O: slightly soluble. density: 1.08 . g/mL (lit.). anion traces: chloride (Cl^-): ≤. 5 . ppm, phosphate (PO₄^3-): ≤. 0.001%, sulfate (SO₄^2-): ≤. 5 . ppm. cation traces: Fe: ≤. 5 . ppm, heavy metals: ≤. 2 . ppm. web metadata keyword.default: microbialanalysis
microbialanalysis. SMILES string: CC(: O)OC(C): O. InChI: 1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3. InChI key: WFDIJRYMOXRFFG-UHFFFAOYSA-N. Pictograms: GHS02,GHS05,GHS06. Signal Word: Danger. Hazard Statements: H226 - H302 - H314 - H330. Precautionary Statements: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338. Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B. Storage Class Code: 3 - Flammable liquids. WGK: WGK 1. Flash Point(F): 120.2 Â°F - closed cup. Flash Point(C): 49 Â°C - closed cup. Personal Protective Equipment: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter.