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采用高效液相色谱法控制二甲双胍中双氰胺杂质的限量。HPLC was used in the determination of Dicyandiamide in Metformin hydrochloride.

以吗啉、盐酸、双氰胺为原料合成盐酸吗啉呱。Morocydine hydrochloride was synthesized with morpholine? hydrochloric acid and dicyandiamide.

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基料是特制的双氰胺-尿素-甲醛共聚物的胶体溶液。The base material was tailor made colloidal solution of dicyandiamide urea formaldehyde copolymer.

采用磷酸双氰胺盐作环氧粉末涂料的固化剂、氟化钠作添加剂。This research uses dicyandiamide as firming agent in epoxy powder coating and sodium fluoride as additive in epoxy.

用双氰胺作固化剂、橡胶为增韧剂与环氧树脂共混后组成单组份胶粘剂。The one component adhesive is made by mixing dicyandiamide as curing agent, rubber as toughening agent and epoxyresion.

用氨基化合物,乙醛酸和双氰胺树脂等分别处理浸酸裸皮的软化裸皮后进行少铬鞣制。The pickled pelt or bated hides were pretreated separately with glyoxylic acid, amino compounds and dicyandiamide resin etc.

研究了酸度对苯胺与双氰胺加成反应生成苯基双胍的影响。The effect of acidity on the synthesis of phenylbiguanide from the additive reaction of aniline with dicyandiamide was studied.

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介绍了GZQ振动流化床干燥机的性能、优点及该机在双氰胺干燥应用中取得的成效。The properties and advantages of GZQ vibration fluidized bed dryer, and its good effects on dicyandiamide drying are introduced.

研究了有机合成阳离子高分子絮凝剂双氰胺-甲醛絮凝剂在污泥处理中的应用。Synthesis organic cation polyelectrolyte dicyandiamide formaldehyde flocculant used in sludge treatment were studied in this paper.

用氨基化合物,乙醛酸和双氰胺树脂等分别处理浸酸裸皮的软化裸皮后进行少铬鞣制。The pickled pelt or bated hides were pretreated separately with glyoxylic acid, amino compounds and dicyandiamide resin etc. , then tanned with less chrome.

改性双氰胺与环氧树脂具有较好的相容性,使环氧树脂固化体系的力学性能具有较大幅度的提高。The treated dicyandiamide have a better compatibility with epoxy adhesive, which contribute to improving the mechanical properties of curing epoxy adhesive greatly.

以双氰胺钠和糖精为起始原料,经过开环、光气化、缩合等一系列反应制备了苯磺隆,合成反应的总收率可达57。Using sodium dicyandiamide and saccharin as raw materials, tribenuron-methyl is synthesized via ring-opening reaction, phosgenation and condensation with total yield of 57.

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合成了一种新型的潜伏性环氧树脂固化剂-间甲苯胺改性的双氰胺衍生物,讨论了反应条件对合成的影响,并通过熔点测定、红外光谱法对其进行了表徵。A new kind of latent curing agent for epoxy resin, the dicyandiamide modified by m-Toluidine was synthesized under different conditions. The product was characterized by melting point, IR spectrum.