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- It is not necessary to use natural pure abietic acid and dehydroabietic acid and they are not easily obtained as standard substances. 该法不仅可以克服松香中各异物体及同系物的干扰,而且不必用极难制备和保存的天然纯枞酸和脱氢枞酸作标样。
- The results show that these oleoresins have common characteristics of that of subgen.Pinus, but all their amount of abietic acid are more than 20 %. 发现它们基本上具有油松亚属松树松脂的共同特征,唯枞酸含量较高,均超过20%25;
- The results of the analysis show the main product is a dehy- drogenated abietic acid, whose quality is up to the requirement of the potassium soap of rosin. 分析结果表明，反应产物主要为脱氢枞酸，其质量符合作为歧化松香钾皂的要求。
- From rosin purified abietic acid was prepared by using abietic acid as stared material acylamino surfactant was synthesized by maleric anhydride and diethanolamine. 用松香纯化得到的松香酸(枞酸)与马来酸酐反应得马来海松酸;再与二乙醇胺反应制得松香马来酰胺基乙醇表面活情剂.
- The best technical condition of the reed pulp is in 47°SR, wipped off primary fines and added secondary fines up to 10%, meanwhile, adding stuffings (abietic acid, vitriolic aluminium, French chalk). 漂白芦苇浆抄造文化用纸的最佳工艺条件为：在打浆度为47°SR时去除一级细小纤维，加入10%25的二级细小纤维，同时加入填料（松香胶、硫酸铝、滑石粉）。
- Using abietic acid as beginning material, by the reaction of deoxidize, substitution and quaternarization, we get two new chiral quaternary ammonium salts as phase transfer catalyst : PTC-lc and PTC-Id. 以去氢枞酸为初始原料，经还原、取代、季铵化等反应，合成了两种新型手性一元季铵盐相转移催化剂：PTC-1c和PTC-1d。
- Abietinylglycine,a surface active agent,was synthesized by the reaction of glycine and abieting chloride using abietic acid as starting material. 研究以松香为原料,经松香酰氯和甘氨酸反应合成松香酰甘氨酸表面活性剂。
- A New Method of Purifying Abietic Acid 提纯枞酸的新方法
- Keywords C60;abietic acid;dehydrogenation;decarboxylation; 枞酸;脱氢;脱羧;
- Keywords dehydroabietic acid;abietic acid;chiral catalyst; 脱氢枞酸;松香酸;手性催化剂;
- Keywords rosin;abietic acid;dehydroabietylamine;fullerene;bioactivity; 松香;枞酸;脱氢枞胺;富勒烯;生物活性;
- Keywords Abietic Acid;rosin maleinamide ethanol;surfactant;synthesis; 松香酸;松香马来酰胺基乙醇;表面活性剂;合成;
- Keywords mixed rosin;disproportionation;abietic acid;dehydroabietic acid; 混合松香;歧化反应;枞酸;去氢枞酸;
- Keywords rosin;rosin esters;abietic acid;glycol;synthesis technology; 松香;松香酯;乙二醇;枞酸;合成工艺;
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- Research progress on abietic acid, dehydroabietic acid and their bioactive derivatives 枞酸和去氢枞酸生物活性衍生物研究进展
