Anhydride acétique puriss. p.a. ACS réactif. ISO réag. Ph. Eur. >= 99% (GC)

Name: Anhydride acétique puriss. p.a. ACS réactif. ISO réag. Ph. Eur. >= 99% (GC)
Brand: SIGMA-ALDRICH
SKU: 33214-1l-m
Price: 116.55 USD

Code: 33214-1l-m D2-231

Non disponible en dehors du Royaume-Uni et de l'Irlande

General description

Acetic anhydride is a colorless liquid. On dissolution in water, it undergoes solvolysis to afford acetic acid. It is widely employed as acetylation reage...

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Non disponible en dehors du Royaume-Uni et de l'Irlande

General description

Acetic anhydride is a colorless liquid. On dissolution in water, it undergoes solvolysis to afford acetic acid. It is widely employed as acetylation reagent 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. It is employed as solvent for various organic reactions.

agency	reag. ISO, USP/NF, reag. Ph. Eur.
anion traces	phosphate (PO₄^3-): ≤10 mg/kg, chloride (Cl^-): ≤2 mg/kg, sulfate (SO₄^2-): ≤5 mg/kg
assay	≥99% (GC)
autoignition temp.	629 °F
bp	138-140 °C (lit.)
cation traces	Ca: ≤0.5 mg/kg, Cd: ≤0.05 mg/kg, Ni: ≤0.02 mg/kg, Al: ≤0.5 mg/kg, Ba: ≤0.1 mg/kg, Mg: ≤0.1 mg/kg, Sn: ≤0.1 mg/kg, Zn: ≤0.2 mg/kg, B: ≤0.02 mg/kg, Cr: ≤0.05 mg/kg, Mn: ≤0.02 mg/kg, Co: ≤0.02 mg/kg, Cu: ≤0.02 mg/kg, Pb: ≤0.1 mg/kg, Fe: ≤0.1 mg/kg
density	1.08 g/mL (lit.)
expl. lim.	10.3 %
grade	puriss. p.a., ACS reagent
impurities	≤0.01% KMnO₄ red. matter (as O), ≤0.003% non-volatile matter
InChI key	WFDIJRYMOXRFFG-UHFFFAOYSA-N
InChI	1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
mp	−73 °C (lit.)
Quality Level	100
refractive index	n20/D 1.390 (lit.)
SMILES string	CC(=O)OC(C)=O
suitability	passes test for reaction against H₂SO₄
vapor density	3.5 (vs air)
vapor pressure	10 mmHg ( 36 °C), 4 mmHg ( 20 °C)

Safety Data Sheet for 33214-1L-M
Certificat d'analyse Sigma

Cas Number	108-24-7
Hazard Class	8
Un Number	1715
Pack Group	II

Ce produit répond aux critères suivants pour être admissible aux récompenses suivantes :

Anhydride acétique puriss. p.a. ACS réactif. ISO réag. Ph. Eur. >= 99% (GC)

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