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- Rosin and gaseous ammonia occurred the reaction of ammoniation by the catalyst of para-ammonium tungstate,and dehydrating action, which might produce the high-quality rosin nitrile. 松香与气态氨在仲钨酸铵催化剂作用下发生氨化和脱水反应后,可生产出性能优良的松香腈产品.
- rosin nitrile 松香腈
- Gum rosin is distilled from pine gum. 本产品由松脂蒸馏制得。
- Purification of Nitrile Hydratase from Nocardia sp. 腈水合酶的纯化过程研究。
- Research Survey on the Rosin of Pinus L. 天然松树脂的研究进展。
- Fire proofed nitrile rubber boor. 鞋面采用防火丁腈橡胶。
- Dry rosin is best in tropic and soft rosin in cold climate. 干的松香在热带最适用,而软的松香适用于寒冷的气候。
- Nitrile is a copolymer of butadiene and acrylonitrile. 腈是一种丁二烯与丙烯腈的共聚物。
- The world gum rosin production appeares to decline in recent years. 目前世界上脂松香生产在大多数国家出现下降趋势。
- These unions also have a resilent nitrile seal ring. 装有弹性丁晴橡胶密封环。
- Very high activity rosin flux used for difficult to solder metals. 用以对难以焊接金属进行焊接的极高活性松香助焊剂。
- Gloves Protection : Neoprene or nitrile rubber gloves recommended. 防护手套)(建议使用氯丁丁腈橡胶手套.
- Specifications of Gum Rosin Glyceride and Hydrogenated Ros. 松香甘油酯和氢化松香甘油酯的技术指标。
- Epoxy resin toughened by carboxyl nitrile rubber exhibits good... 羧基丁腈橡胶增韧的环氧树脂胶表现出良好的拉伸剪切性能。
- Ballerinas coat their toe shoes with rosin to avoid onstage slips. 芭蕾舞女在她们的舞鞋脚尖端涂上松香,以避免演出时滑倒。
- Shuxiang, Rosin I walked with an unforgettable childhood. 书香,松香伴我走过了难忘的童年。
- Gum rosin is a kind of natural resin with high economic value. 松香是一种具有重大经济价值的天然树脂。
- The nitrile (II) (28 g) was mixed with 26 ml of concentrated sulfuric acid. 将28克腈化物(II)与26毫升浓硫酸进行混合。
- Fort Vale Composite seal with PTFE outer ncapsulating Nitrile inner. 内含腈的复合PTFE密封圈。
- BUNa-N is a general purpose oil resistant polymer known as nitrile rubber. 丁腈橡胶(BUNa-N)是一种多用途抗油品腐蚀聚合物,称为腈橡胶。