Method for measuring concentration of NaSCN solution through conductivity

Abstract

The invention discloses a method for measuring concentration of a NaSCN solution through conductivity. The method comprises steps as follows: the concentration of the NaSCN solution is calculated by measuring the conductivity of the NaSCN solution; when the concentration of NaSCN is 0.5%-5%, the conductivity of the NaSCN solution is measured, and the concentration of the NaSCN solution is calculated according to the formula Y=0.1057X-0.1515; when the content of NaSCN is 30 ppm-5,000 ppm, the conductivity value of the NaSCN solution is measured, and the concentration of the NaSCN solution is calculated according to the formula Y=0.7831X-4.1847. The method is high in speed, convenient to use and low in cost, small errors are caused in the process, a result can serve as a basis for judgment of a production operation condition and technology adjustment, and the method can be widely used in industrial continuous production devices.

Description

technical field [0001] The invention relates to the field of analysis and testing, and furthermore, relates to a method for measuring the concentration of NaSCN solution through conductance. Background technique [0002] At present, methods such as potentiometric titration, ion chromatography and spectrophotometer are mostly used in the quantitative detection of NaSCN solution. The above detection methods can accurately detect unknown solutions of different concentrations, and are suitable for large-scale routine analysis. [0003] The above method generally takes a long time. For example, potentiometric titration needs to go through a series of processes such as instrument preheating, accurate sample weighing, sample dilution, automatic titration and data processing (it takes about 50 minutes from sampling to obtaining results); at the same time, the chemical reagent AgNO 3 solution, which not only increases the cost of sample testing, but also requires collection and trea...

AI Technical Summary

Problems solved by technology

[0003] The above method generally takes a long time

For example, potentiometric titration needs to go through a series of processes such as instrument preheating, accurate sample weighing, sample dilution, automatic titration and data processing (it takes about 50 minutes from sampling to obtaining results); at the same time, the chemical reagent AgNO 3 solution, which not only increases the cost of sample testing, but also requires collection and treatment of waste liquid, which is laborious and uneconomical

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