| 关于用K2Cr2O7+K2CrO4作双指示剂法示例的探讨 |
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| 引用本文： | 谢秋元.关于用K2Cr2O7+K2CrO4作双指示剂法示例的探讨[J].广西科学院学报,1996(Z1):87-89,96. |
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| 作者姓名： | 谢秋元 |
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| 作者单位： | 桂林医学院药学系 |
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| 摘 要： | 在酸碱滴定的双指示剂法示例中，用Ｋ２Ｃｒ２Ｏ７＋Ｋ２ＣｒＯ４取代Ｎａ２ＣＯ３＋ＮａＨＣＯ３，并改用溴甲酚绿和酚酞作指示剂．其结果表明，本法滴定的终点前颜色变化较明显，终点较敏锐，准确度较好．
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| 关 键 词： | 酸碱滴定，双指示剂法，K_2Cr_2O_7＋K_2CrO_4 |
| 收稿时间： | 1995/3/19 0:00:00 |
| 修稿时间： | 1996/2/5 0:00:00 |
On Using K2Cr2O7+K2CrO4 as Means of Double Indication |
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| Xie Qiuyuan.On Using K2Cr2O7+K2CrO4 as Means of Double Indication[J].Journal of Guangxi Academy of Sciences,1996(Z1):87-89,96. |
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| Authors: | Xie Qiuyuan |
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| Institution: | Dept. of Pharmacology, Guilin Medical College, Guilin 541001 |
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| Abstract: | in the use of double indication in acid and alkali titration, using K2CrO7 + K2CrO4.instead of Na2CO3 + NaHCO3, and bromocresol green and phenolphthalein as indicators,the result shows that final colours change evidently in the titration with sharp destination and good accuracy. |
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| Keywords: | acid a nd alkali titration means of double indicators K_2Cr_2O_7 +K_2CrO_4 |
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