1) potassium dichromate oxidation titration
重铬酸钾氧化法
1.
Determination of Organic carbon in organic-inorganic compound fertilizers by potassium dichromate oxidation titration,in order to overcome the interference of carbon in urea,the test showed it was silitable when the heating temperature is controlled at 100℃,the consistency and the volume of potassium dichromate is 0.
用重铬酸钾氧化法测定有机无机复混肥中有机质的含量 ,为消除测定过程中尿素中碳的干扰 ,确定了实验条件 :重铬酸钾溶液的浓度 0 。
2) potassium dichromate method passivation
重铬酸钾法钝化
3) potassium dichromate method
重铬酸钾法
1.
The comparison of monitoring COD in water with rapid monitoring method and potassium dichromate method is finished.
比较了快速测定法与国家标准方法重铬酸钾法(GB11914-89)测定化学需氧量。
2.
Based on the operation and management experience of on-line COD_(Cr) analyzer,several suggestions are put forward,including replacing ferrous ammonium sulfate by potassium hydrogen phthalate as range-measured solution,replacing zero offset by beginning offset,and inspecting the compatibility of analyzer to water quality when the potassium dichromate method is not used.
根据水质CODCr在线分析仪运行管理工作的经验,提出以邻苯二甲酸氢钾代替硫酸亚铁铵作为量程测定液,以始点漂移代替零点漂移,以及对于非重铬酸钾法测定CODCr仪器检验,要考察其对水质的适应性的几点建议。
3.
the improved method had advantages of fewer quantity of acid,less heating time and low cost over the potassium dichromate method of national standard.
废水中化学耗氧量的测定 ,国标用重铬酸钾法 ,该方法不仅酸介质用量大 ,而且需 2h加热。
4) potassium dichromate
重铬酸钾法
1.
Discussion of influencing factors on COD_(Cr) determination in industrial waste drainage by potassium dichromate;
用重铬酸钾法测定工业废水中COD_(Cr)影响因素的探讨
2.
Rapid determination of COD in water sample by using potassium dichromate;
改进重铬酸钾法快速测定水样CODcr
5) dichromate method
重铬酸钾法
1.
The common methods to measure include dichromate method which is used to determinate the more serious pollution of industrial waste water; and permanganate method which is applicable to the determination of surface water pollution and sewage.
常用的测定方法有重铬酸钾法和高锰酸钾法,前者适用于测定污染较为严重的工业废水,后者适用于测定污染较轻的地表水和生活污水。
6) potassium dichromate redo
重铬酸钾氧化还原
1.
The position of “tri out”is confirmed by the amount of europium which is determined by potassium dichromate redox.
在分离过程中 ,采用了“三出口”技术富集氧化铕〔2、3、4〕,三出口位置是由重铬酸钾氧化还原快速测定铕的含量确定其出口位置 ,该方法简便、快捷 ,为钐铕钆分离及时反馈槽体内铕的变化 ,根据该数据调整工艺参数 ,确保槽体正常运转 ,稳定产品质
补充资料：重铬酸盐法
分子式：
分子量：
CAS号：
性质：氧化还原滴定法的一种。用标准重铬酸钾溶液滴定还原性质物的方法。主要用于测定铁。用二苯胺磺酸钠为指示剂。滴定终点是由浅绿色变为紫蓝色。重铬酸钾溶液比高锰酸钾溶液稳定，并可在盐酸溶液中进行滴定，但需用指示剂，应用范围较小。
分子量：
CAS号：
性质：氧化还原滴定法的一种。用标准重铬酸钾溶液滴定还原性质物的方法。主要用于测定铁。用二苯胺磺酸钠为指示剂。滴定终点是由浅绿色变为紫蓝色。重铬酸钾溶液比高锰酸钾溶液稳定，并可在盐酸溶液中进行滴定，但需用指示剂，应用范围较小。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条