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dem-3882608

铜虫 (正式写手)

[交流] 【求助】翻译求助 已有9人参与

the temperature of solution initially increased by ca. 15 oC
ca 是什么东西?
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dem-3882608

铜虫 (正式写手)

谢谢各位的关注
原文如下
Anhydride  Synthesis:The acyl chloride (6.9 mmol) was  added to a solution
of 20 mL of previously dried benzene and dry pyridine (7.0  mmol)
under  nitrogen.  Stirring was  continued  until 'a finely divided
white precipitate was observed which indicated the formation  of
the reactive acyl halide-pyridinium  complex. The reaction vessel
waa  placed in an ice bath at -10  oC  and the carboxylic acid was
added  all  at once.  The  temperature  of  the  solution  initially
increased by ca. 15 oC, but returned to a lower temperature after
stirring for an additional 20 min at -10  oC. The reaction mixture
was filtered through Celite on a glass frit.  The solvent was then
removed in vacuo  to yield product which was purified as indicated
below.
对于The  temperature  of  the  solution  initially increased by ca. 15 oC
不知是如何升高到15度的
8楼2010-08-08 13:25:17
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Elffeng

金虫 (小有名气)

★
westzilch(金币+1):谢谢交流! 2010-08-08 16:10:09
什么嘛  我觉得你的是ca,而不是CA,化学文摘一般是大学的吧  根据他的句子以为化学文摘似乎有些不太明白,应该联系上下文吧,我觉得有可能是一种方法,或者一种手段。仅供交流。
Elffeng
3楼2010-08-08 10:35:24
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caodaoba2010

木虫 (正式写手)

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westzilch(金币+1):支持新虫~ 2010-08-08 16:10:22
引用回帖:
Originally posted by dem-3882608 at 2010-08-08 09:30:28:
the temperature of solution initially increased by ca. 15 oC
ca 是什么东西?

15后面那个是摄氏度吧,ca 应该是一个时间单位,每多长时间升高15度
4楼2010-08-08 12:56:29
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caodaoba2010

木虫 (正式写手)

引用回帖:
Originally posted by dem-3882608 at 2010-08-08 09:30:28:
the temperature of solution initially increased by ca. 15 oC
ca 是什么东西?

也可能是“大约”的意思,句子意思是“刚开始,溶液温度升高了大约15摄氏度”
5楼2010-08-08 13:00:05
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