Propionic acid, C2H5CO2H (Ka = 1.34 × 10−5), is used in the manufacture of calcium propionate, a food preservative. What is the hydronium ion concentration in a 0.698-M solution of C2H5CO2H? White vinegar is a 5.0% by mass solution of acetic acid in water. If the density of whi...
Herein, we monitored the chemical composition in internally mixed malonic acid/calcium nitrate with the mole ratio of 1:1 as a function of pH and relative humidity (RH). At 30% RH, lower than efflorescence relative humidity (ERH) of pure malonic acid aerosols, malonic acid still exhibits ...
J. Creahan, `Controlling Relative Humidity with Saturated Calcium Nitrate Solutions', WAAC Newsletter 13, 1, 1991, pp. 17-18; J. Creahan, G. Thomson and E.F. Hansen, `Update and Feedback: Controlling Relative Humidity with Saturated Calcium Nitrate Solutions', WAAC Newsletter 13, 2, ...
The hydration caused, over time, an increase in the weight of the materials. This was evaluated through TG and DTG analyses, wherein the mass of water that was lost during heating via a TA Instrument Q600 (Centro Servizi di Ateneo per la Ricerca, CeSAR—University of Sassari) was measured...