A method for quickly distinguishing potassium chloride particles from sodium chloride particles

Abstract

The present invention is a method for rapidly distinguishing potassium chloride particles and sodium chloride particles: the method prepares a sodium tetraphenylborate solution with an organic solvent, and uses the sodium tetraphenylborate solution to wet the surface of the particle to be tested, and whether the liquid on the surface of the particle is Potassium chloride particles and sodium chloride particles can be distinguished by turning turbid or observing whether needle-like precipitates are formed on the surface; among them, potassium chloride particles have needle-like attachments on the surface of the particles; Potassium pellets. The method of the present invention adopts the method of utilizing the alcohol solution of sodium tetraphenylborate to react with potassium chloride to generate a stable white precipitate and adhere to the surface of potassium chloride, so as to realize the rapid distinction of potassium chloride and sodium chloride particles, avoiding the phase When distinguishing coarse-grained potassium chloride and sodium chloride in identification, a lot of work is required to grind thin slices and distinguish potassium chloride and sodium chloride according to the difference in refractive index.

Description

technical field [0001] The invention belongs to the technical field of phase identification, in particular to a method for quickly distinguishing coarse-grained potassium chloride and sodium chloride. Background technique [0002] Potassium chloride and sodium chloride are two of the most widely distributed salt minerals and are the main constituents of salt deposits. It is of great significance to quickly identify these two minerals. These two minerals have similar optical properties and are often closely associated. The common identification method is to grind the salt mine sample into thin slices and compare the refractive index of the two minerals under a high-power microscope. This method takes a long period of time and requires a lot of work. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for quickly distinguishing potassium chloride particles and sodium chloride particles for the deficiencies in...

AI Technical Summary

Problems solved by technology

These two minerals have similar optical properties and are often closely associated. The common identification method is to grind the salt mine sample into thin slices and compare the refractive index of the two minerals under a high-power microscope. This method takes a long period of time and requires a lot of work.