. The American encyclopædia of commerce, manufactures, commercial law, and finance. d, deposits a white powder, soluble in acidswithout effervescence. By the action of nitric acid C A- isconverted into oxalic acid When the crystals of C. A. are verydeliquescent, the presence of free sulphuric acid may be sus-pected. This latter may be detected with fiicility by dissolvingthe citric acid in a little water, strongly acidifving the solutionwith hydrochloric acid, and adding chloride of barium, when,if sulphuric acid be , an insoluble precipitate of sul-phate of barium will fall down a(t«r
. The American encyclopædia of commerce, manufactures, commercial law, and finance. d, deposits a white powder, soluble in acidswithout effervescence. By the action of nitric acid C A- isconverted into oxalic acid When the crystals of C. A. are verydeliquescent, the presence of free sulphuric acid may be sus-pected. This latter may be detected with fiicility by dissolvingthe citric acid in a little water, strongly acidifving the solutionwith hydrochloric acid, and adding chloride of barium, when,if sulphuric acid be , an insoluble precipitate of sul-phate of barium will fall down a(t«r a short time. CITRON 1G7 TLA RET WINES Citron [Fr. cedial; Ger. Succmlc; It. confitti(lircdro: Sp. acilioii renh-\, an agreeable fruit, re-sembling a lemon in color, smell, and tasto. Itis the Citrus metlica of botanists (Fig. 80), and isprobably a mere variety of lemon. It is muchlarger than the lemon, of an ovoid shape, and witha very thick rind. The juice too is less acid thanthat of the lemon and lime. The cuticle of therind is full of vesicles containing an essential oil,. Fig. 80. —Citron-Tree. called Oil nf C. or OilofCeihat, on wliich the flavorof the rind depends, and wliich is much used inperfumery. The candied rind of C. is importedfrom Madeira, of the finest quality. The Citrusmedial is a native of Asia; it is now cultivated inwarm climates throughout the world, /m/i. duty,10 per cent; preserved in sugar, 35 per cent; oilof, free. Citronella, an essential oil obtained from thegrass Androjmjoii citratiim, and chiefly importedfrom Ceylon. /;«/>. free. Civaia, the Italian name for pulse, beans, pease,etc. Civanzo, the name in Italy for interest. Civet IDutch, cicet; Ft. cirelte ; Ger. Zibelh : ; Sp. a/(/((/Vi|, a valuable perfume obtainedfrom the civet cat ( Viverra ciirttii), a native of Bra-zil, Guinea,Madagascar,and the Indies ; but ofwhich numbers are kept for commercial purposesin Holland. This perfume is produced by , and is con
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