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jkl444110

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Standardisation. Dissolve 0.120 g of zinc RV in 4 ml of hydrochloric acid R1 and add 0.1 ml of bromine water R. Drive off the excess of bromine by boiling, add dilute sodium hydroxide solution R until the solution is weakly acid or neutral and carry out the assay of zinc by complexometry (2.5.11).这句话中的zinc RV 是什么东西??
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fengyuzhi

金虫 (小有名气)

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telomerase(金币+3,VIP+0):thanks 2-18 09:25
zinc RV,表示的是一种锌,RV是表示材料的性质
Fighting!
2楼2009-01-16 12:27:41
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yxj0818

金虫 (小有名气)

telomerase(金币+0,VIP+0):thanks 2-18 09:25
氧化锌压敏电阻
3楼2009-01-16 13:43:52
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