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In a typical experiment, ethanol (75 mL), deionized water (10 mL),and ammonium hydroxide (3.15 mL, 28 %) were charged into a 250 mL round-bottomed flask. The flask was sealed with a septum and put into an oil bath maintained at 45¡æ. The solution was mixed with magnetic stirring for 30 min. Then TEOS (6.0 mL) was put into a glass vial, which was kept at 20¡æ in a water bath for 30 min. TEOS was quickly injected into the solution in the flask by using a syringe and under vigorous stirring
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wonderfulong: ½ð±Ò+2, Ó¦ÖúÖ¸Êý+1, лл»ØÌû£¬»¶Ó­³£À´½»Á÷¡£ 2016-05-19 23:40:53
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5Â¥: Originally posted by 12772512 at 2016-05-19 08:37:57
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