| 词汇 | benzoic-acid |
| 释义 | benzoic acid noun[ U ] chemistry specializeduk /benˌzəʊ.ɪk ˈæs.ɪd/ us /benˌzoʊ.ɪk ˈæs.ɪd/ a clear substance found in various resins and berries, used in food preservatives, medical and cosmetic products, etc.苯甲酸（安息香酸）（一种无色物质，可从多种树脂和浆果中提取，用于防腐、医疗和化妆品等） Chemicals, chemical compounds & gases acetic acid acetone acrolein acrylamide activated charcoal adenine agglomerate ethyl alcohol glyphosate H2O HCFC HFC hyaluronic acid hydrochloric acid laughing gas limescale meths oxyacetylene prussic acid tartaric acid Benzoic acid, as it exists in the resin, is the natural production of the plant from which the resin is derived. Dr. Gregory considers the following process for obtaining benzoic acid the most productive. If the solution of the salts of this acid is too dilute and warm, none or only a portion of the benzoic acid will be separated. Then procure a small quantity of benzoic acid, which exists in the shape of snowy crystals. These crystals, except for a slight sweetness of taste, correspond in characters and tests to benzoic acid. |
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