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dwaww(½ð±Ò+1, ·ÒëEPI+1): лÀ² ¿ÉÊÇÖ»ÓÐÒ»¶Îѽ 2011-03-20 19:44:38
Acetic acid was supplied by Sigma and ethanol and ethyl acetate were supplied by Merck. The components were degassed ultrasonically,dried over molecular sieves (type4A,Aldrich),and kept in an inert argon with a maximum water content of 2*10-6mass fraction. Their mass fraction purities were>99 mass% for acetic acid and>99.8 mass% for methanol,ethanol and ethyl acetate. The water was bidistillated and deionized.
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