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- abietic acid anhydride [医] 松香酸酐
- 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.
- 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;
- N-Carboxy-alanine acid anhydride (NCA) was synthesized by L-alanine and Triphosgen. 摘要利用L-丙氨酸和三聚光气反应制备了N-羧基-丙氨酸-环内酸酐(NCA)。
- Phosphorus Pentoxide, also called Phosphoric Acid Anhydride, is a white, spiculate crystal. 五氧化二磷又名磷酸酐，白色针状晶体。
- 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。
- The organic compounds are mainly benzoic acid anhydride, benzophenone, and so on. 生成的有机化合物成分比较复杂,主要成分有苯甲酸酐、二苯甲酮等。
- Compared with the amine curing agent, the casting epoxy resin cured by the acid anhydride has higher flashover voltage. 实验结果表明:酸酐固化的试样比胺类固化试样闪络电压要高；
- The effects of the poly(l,2-butadiene) oligomer carboxylated with maleic acid anhydride (MLPB) on the cork powder filled NBR and on the IIR recipes were researched in this paper. 本文简要介绍了马来酸酐化聚丁二烯(MLPB)在软木填充丁腈橡胶制品和丁基橡胶配方改性中的应用效果。
- 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）。
- Maleic anhydride is the important organic chemical material, is the third largest acid anhydride behind the phthalic anhydride and acetic anhydride. 顺丁烯二酸酐，简称顺酐或者马来酐，是重要的有机化工原料，是仅次于苯酐和醋酐的第三大酸酐。
- 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。
- Phthalein acid anhydride Photophobic pharmaceutical and has special protective action on the ultraviolet ray. It can cure sunlight dermatitis, eczema, etc. 酞酐避光剂，对紫外线具有特殊的保护功效，可治疗日光性皮炎，湿疹等。
- A lot of decomposition products are formed, such as dioxoimidazole, dioxopiperazine, acid anhydride, cyanuric acid, ammonium, four, five and six-membered ring lactam etc. 可能产生二氧咪唑环、毗嗪二酮、尿氰酸、铵盐及四元环、五元环和六元环内酰胺结构的产物。
- The adhesive made of epoxy resin, polyazelaic acid anhydride, 2,4-methylimidazole and modified agent.It can be solidified quickly at the middle temperature. 以环氧树脂、酸酐、咪唑等为主要原料并添加改性剂，配制了一种能在中温下快速固化的胶粘剂；
- 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。
- In this paper, the various kinds of accelerators which were used for curing epoxy resin with acid anhydride, and the accelerative mechanism in the epoxy resin curing system were introduced. 摘要评述了几类用于酸酐固化环氧树脂的促进剂及其在酸酐/环氧体系中的固化促进机理。
- A New Method of Purifying Abietic Acid 提纯枞酸的新方法
- Arsenous oxide;Arsenic trioxide;Arsenious acid anhydride;White arsenic;acide arsenieux;anhydride arsenieux; ... 氧化亚砷;三氧化二砷;亚砷酐;砒霜;白砒香港
