摘要
HG2- 1400- 80 精蒽蒽含量测定过程中滴定终点不明显,结果偏差大,经研究实验,在加指示剂滴定前加适量溶剂,可使滴定终点更明显,与原方法比较蒽含量结果相同。
According to the standard of HG 2 -1400-80 to determine the content of fined anthracene,the terminal point of titration is not distinct,the measure deviztion is considerable this study is conducted to add additive solvent before nitration.The result shows the terminal point is distinct and the measure results of parallel samples are in close proximity by this way.
出处
《河北化工》
1999年第4期48-49,31,共3页
Hebei Chemical Industry
关键词
精蒽
蒽
含量
测定方法
refined anthracene
anthracene content
determination
improved method
