(You will help other colleagues find this blog). The pi system linkage through the central oxygen offers very weak resonance stabilization compared to the dipole-dipole repulsion between the two carbonyl oxygens. Acetic anhydride reacts with water and, therefore, will not move into air from moist soil and water surfaces and is not expected to build up in fish. ASTM,171,Atomic-Mass,327,Atomic-Number,436,Atomic-Radius,86,Atomic-Symbol,329,Atomic-Volume,94,Boiling-Point,94,Chemical-Elements,100,Chemical-Symbol,217,Coefficient-of-Thermal-Expansion,85,Covalent-Radius,87,Crystal-Structure,109,Density,309,Elastic-Modulus,30,Electrical-Conductivity,79,Electro-Affinity,87,Electron-Configuration,109,Electronegativity,102,Electrons-per-Shell,112,Enthalpy-of-Fusion,93,Enthalpy-of-Vaporization,95,Group-Number,218,Heat-of-Fusion,87,Heat-of-Vaporization,85,Ionic-Radius,78,Ionization-Energy,102,Ionization-Potential,101,Melting-Point,96,Oxidation-States,104,Period-Number,107,Properties,40,Specific-Gravity,83,Specific-Heat,92,Specific-Weight,1,Tests,2,Thermal-Conductivity,105,Valence-Electrons,98, https://1.bp.blogspot.com/-6hRScF9lviw/XPgK3WdwgAI/AAAAAAAAMgI/H_Ucg8hhvUk0Cuzy8xIH2A6n8TJxbY36QCLcBGAs/s320/density%2Bof%2Bacetic%20anhydride%2Banhydride.jpg, https://1.bp.blogspot.com/-6hRScF9lviw/XPgK3WdwgAI/AAAAAAAAMgI/H_Ucg8hhvUk0Cuzy8xIH2A6n8TJxbY36QCLcBGAs/s72-c/density%2Bof%2Bacetic%20anhydride%2Banhydride.jpg, https://materials.gelsonluz.com/2019/06/density-of-acetic-anhydride.html. Gelson Luz is a Mechanical Engineer, expert in welding and passionate about materials. = 1.0751 g/ml. Acetic anhydride is typically used for acetylation of alcohols or amines. Search for "Gelson Luz" in your favorite browser to learn more. Density: 1.08 g/mL at 20 C Acetic anhydride (Ac2O) is a liquid with a strong acetic acid smell (acetic acid is liberated during the hydrolysis of acetic anhydride by moisture in the air). Acetic anhydride (Ac2O) is a liquid with a strong acetic acid smell (acetic acid is liberated during the hydrolysis of acetic anhydride by moisture in the air). It is not expected to be broken down by sunlight. If acetic anhydride is released to the environment, it will be broken down in air. acetic anhydride - cas 108-24-7, synthesis, structure, density, melting point, boiling point = 67.1163 lb/ft³. 2,2,6,6-tetramethyl-4-piperidinone 1-oxide, (4E)-4-(cyclohexylimino)-2,2,3,3-tetramethylcyclobutanone, 2-(1-benzothiophen-2-yl-phenylmethylidene)propanedinitrile, 2,2-di(2,4,6-cycloheptatrien-1-yl)malonic acid, 5-ethyl-1-(methoxymethyl)-5-phenyl-2,4,6(1H,3H,5H)-pyrimidinetrione (42013-65-0), methyl 1-(diethylaminomethyl)-2-oxocyclohexane-1-carboxylate, N,N-dimethyl-2-oxo-2-phenylacetamide (51579-87-4), 1-(2,4-dihydroxy-6-methyl-3-pyridinyl)-1-hydroxyacetone, 7-amino-1,3-dimethylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (52294-86-7), 4-(acetyloxy)-6-methyl-2-oxobicyclo[3.2.0]hept-6-yl acetate, ethyl (6-methoxy-1-oxo-1H-inden-2-yl)acetate. = 1075.1 kg/m³. 2) www.sigmaaldrich.com: Acetic anhydride (link), 3) www.emdmillipore.com: Acetic anhydride (link), 4) Pearson, A. J.; Roush, W. R.; Handbook of Reagents for Organic Synthesis; Activating Agents and Protecting Groups. The energy barriers to bond rotation between each of the optimal aplanar conformations are quite low.

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