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Hartshorn is the horn of male red deer. ==Derivatives== Various substances were made from hartshorn shavings : * Oil of hartshorn is a crude animal oil obtained from the destructive distillation of the deers' bones or horns. * Salt of hartshorn refers to ammonium carbonate, an early form of smelling salts obtained by dry distillation of oil of hartshorn. * Spirit of hartshorn (or spirits of hartshorn) is an aqueous solution of ammonia. Originally this term was applied to a solution manufactured from the hooves and horns of the red deer, as well as those of some other animals. The aqueous solution was a colorless and pungent, consisting of about 28.5 percent ammonia. It was used chiefly as a detergent, for removing stains and extracting certain vegetable coloring agents, and in the manufacture of ammonium salts. Later the term was applied to the partially purified similar products of the action of heat on nitrogenous animal matter generally, and finally the term was applied to any aqueous solution of ammonia. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hartshorn」の詳細全文を読む スポンサード リンク
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