Specific gravity calcium chloride solution

FIGURE R4. Specific gravity of calcium chloride solutions. (Courtesy of Japan Soda Industry Association.)... 

To obtain ordinary commercial acetic add, acetate of lime is mixed with calcium chloride in proper proportions, and the solution concentrated until it crystallizes. The mother liquid is poured off and concentrated with the production of a second crop of crjstals this is repeated Until about four crops have been obtained. The crystals are then dissolved in water, filtered through animal charcoal mixed with about 10 per cent, of calcium chloride and recr . S callized. The crystals are distilled with a mixture of T part sulphuric acid of specific gravity i S4 and 2 parts water, and the resulting acetic acid concentrated. This acid should contain 33 per cent, by weight of hydrogen acetate. 

Benzaldehyde is a liquid with an agreeable odor, which boils at 179°, and has the specific gravity 1.0504 at 15°. It can be formed by oxidizing benzyl alcohol, or distilling calcium benzoate with calcium formate. It is manufactured by heating benzal chloride with milk of lime, or by oxidizing benzyl chloride with a solution of lead nitrate. It has been prepared from toluene directly by electrolytic oxidation or by oxidation with air in the presence of a catalyst. 

Synonyms Calcium Chloride, Anhydrous Calcium Chloride Hydrates Chemical Formula CaCVxHjO where x=o to 6 (ii) Observable Characteristics— Physical State (as normally. shipped) Solid or water solution Color White to off-white Odor None (Hi) Physical and Chemical Properties — Physical State at 15 Cand I atm. Solid Molecular Weight 110.99 (solute) Boiling Point at I atm. Not pertinent Freezing Point. Not pertinent Critical Temperature Not pertinent Critical Pressure Not pertinent Specific Gravity 2.15 at 20°C (solid) Vapor (Gas) Density Not pertinent Ratio of Specific Heats of Vapor (Gas) Not pertinent Latent Heat of Vaporization Not pertinent Heat of Combustion Not pertinent Heat of... 

---