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zjb-lufia

金虫 (正式写手)

笨笨猪

[求助] 作分析的达人们帮我翻译一段美国质量标准

Dibasic salt and calcium oxide— Weigh accurately about 1.5 g, and dissolve by
warming with 25.0 mL of 1 N hydrochloric acid VS. Cool, and slowly titrate the excess of 1N hydrochloric acid, while agitating constantly, with 0.1 N sodium hydroxide VS to a pH of 4.0, determined potentiometrically. Not less than 13.0 mL and not more than 14.3 mL of 1N hydrochloric acid is consumed for each g of salt, calculated on the ignited basis.
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suchang198

银虫 (小有名气)

引用回帖:
6楼: Originally posted by zjb-lufia at 2013-07-05 10:26:08
每克盐按炽灼品计算,就是每克炽灼残渣盐消耗的盐酸量?
如果是炽灼残渣,那么1.5g样品的炽灼品量又是多少,该怎么算?...

这应该是一个检查项,和你炽灼后的量没有关系,只要你称1.5g,盐酸的消耗量就应该在规定的范围
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7楼2013-07-05 15:36:41
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zjb-lufia

金虫 (正式写手)

笨笨猪

引用回帖:
7楼: Originally posted by suchang198 at 2013-07-05 15:36:41
这应该是一个检查项,和你炽灼后的量没有关系,只要你称1.5g,盐酸的消耗量就应该在规定的范围...

同意
自然
8楼2013-07-08 11:58:14
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