Related entry: Limon.—Lemon
"The freshly expressed juice of the ripe fruit of Citrus medica, Linné, var. B. Limonum, Hooker filius"—(Br. Pharm., 1898).
Description and Tests.—"A slightly turbid, yellowish liquid, with a sharply acid taste. Specific gravity 1.030 to 1.640. One fluid ounce contains 30 to 40 grains (or 100 cubic centimeters contain 7 to 9 grammes) of citric acid. When lemon juice is evaporated to dryness, and the residue is incinerated, it should yield not more than 3 per cent of ash; 110 minims (or 100 cubic centimeters) of lemon juice are neutralized by about 11 1/2 grains (or 11.4 grammes) of potassium bicarbonate, by about 9 1/2 grains (or 9.5 grammes) of sodium bicarbonate, and by about 16 1/2 grains (or 16.5 grammes) of sodium carbonate"—(Br. Pharm.).
King's American Dispensatory, 1898, was written by Harvey Wickes Felter, M.D., and John Uri Lloyd, Phr. M., Ph. D.