| 单词 | methane sulphonic acid | 
| 释义 | > as lemmasmethane sulphonic acid   methane sulphonic acid  n. 		(also methane sulfonic acid)	 a corrosive substance, CH3SO2OH, which melts at around room temperature (&c.20°C) and is used as a catalyst in esterification, alkylation, and polymerization reactions. ΚΠ 1892    H. F. Morley  & M. M. P. Muir Watts' Dict. Chem. 		(rev. ed.)	 III. 252/2  				Methane sulphonic acid,..syrup which decomposes above 130°. 1987    New Scientist 26 Nov. 33/3  				Traces of methanesulphonic acid (MSA) found in cores drilled from the Antarctic ice have provided more information about biological activity in the oceans during the most recent ice age. < as lemmas | 
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