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- The synthesis of styralyl propionate can be achieved by microwave with ferric chloride and p toluenesulfonic acid as the catalysts. 报道以三氯化铁、对甲苯磺酸为催化剂,在微波辐射下合成丙酸苏合香酯。
- Triarylmethane structure polymer can be prepared from pyrene, phenol respective, and bezaldehyde as cross linking agent in the presence of p toluenesulfonic acid catalyst. 分别以芘、苯酚为原料，以苯甲醛为交联剂，对甲基苯磺酸为催化剂合成出具有三芳基甲烷结构的聚合物。
- Benzaldehyde(0.049mol) was treated with isopropylthiol(12mL) in the presence of p toluenesulfonic acid (3mmol) to give 84.9% benzaldehyde isopropyl mercaptal. 苯甲醛和异丙硫醇在对甲苯磺酸催化下发生反应，合成相应的缩硫醛，产率达84．9%25。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids,such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid. 研究了氨基磺酸、氟硼酸及对甲苯磺酸的助催化作用,并探讨了其催化机理。
- What color is copper sulphate solution? 硫酸铜溶液是什么颜色？
- Copper and gold are both metals. 铜和金都是金属。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- What color is copper sulfate solution? 硫酸铜溶液是什么颜色？
- A copper coin formerly used in India and Pakistan. 安那旧时在印度和巴基斯坦使用的铜币
- I mind my p's and q's whenever I see him. 每当我见到他我都谨慎行事。
- Ornamental copper pans hung on the wall. 墙上挂着装饰性的铜盘。
- This mountain road leads to the copper mine. 这条山路通向那个铜矿。
- In English, b, p, m and w are bilabials. 英语中的b、p、m、w为双唇音。
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- We fuse copper and tin to make bronze. 我们把铜和锡熔制成青铜。
- They will mine copper there in the valley. 他们将在那边的山谷开采铜矿。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- AB and CD intersect at (the point) P. AB线和CD线在P点相交。
- The time now is 10:00 p, m, sharp. 现在的时间是晚上10点整。
