High-accuracy substance solubility measurement device based on laser refraction

A high-precision, solubility technology, applied in the measurement device, color/spectral characteristic measurement, flow characteristics, etc., can solve the problems of human error, error, volatile solvent, etc., to reduce measurement error, improve accuracy and stability Good results

Inactive Publication Date: 2015-11-18
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of the balance method are: when analyzing the concentration of the supernatant, the solvent is easy to volatilize, which can cause large errors; the chemical analysis operation is relatively cumbersome; when "the concentration values ​​​​measured in cycles remain consistent", it is not checked whether the solution is uniform, so it cannot be determined Whether the measured solution has really reached the dissolution equilibrium point at this time
The disadvantage of the dynamic method is that it needs to judge the dissolution equilibrium point with the naked eye, which has a large human error
Compared with judging the

Method used

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  • High-accuracy substance solubility measurement device based on laser refraction
  • High-accuracy substance solubility measurement device based on laser refraction
  • High-accuracy substance solubility measurement device based on laser refraction

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Embodiment Construction

[0019] The technical solution of the present invention will be further described in conjunction with the accompanying drawings. The present invention includes a dissolution system and a dissolution balance point judgment system.

[0020] 1. Dissolving system

[0021] like figure 1 As shown, the dissolution system consists of a constant temperature water tank (1), a square glass jacket outer bottle (10), a square glass jacket inner bottle (13), a magnetic stirrer (3), a magnetic stirring rotor (9), a precision thermometer (15 ), a solute sampling tube (16), and a solvent sampling tube (17). The circulating water outlet hole (14) and the circulating water inlet hole (8) of the jacketed outer bottle (10) are respectively connected to the constant temperature water tank (1) through conduits, and the precision thermometer (15), the solute sampling tube (16) and the solvent sampling tube Pipe (17) is inserted in the solution of square glass jacket inner bottle (13) respectively, s...

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Abstract

The invention relates to a high-accuracy substance solubility measurement device based on laser refraction. The device comprises a dissolution system and a dissolution balance point judgment system, can judge a dissolution balance point of a solution on the basis of laser refraction under different constant-temperature conditions and further measures substance solubility. The device mainly has the advantages that the measurement accuracy of the dissolution balance point of the solution is improved by detecting uniformity of the solution sensitively on the basis of laser refraction, operation is simple, the applicability is wide, the stability is good, and the measurement accuracy is high.

Description

technical field [0001] The invention belongs to the technical field of testing devices, in particular to a high-precision measuring device for solubility of substances based on laser refraction. Background technique [0002] Solubility of substances is an important research content of chemical thermodynamics. Water softening of soft rock in engineering is closely related to mineral solubility, and the study of the relationship between the two is of great significance for a deep understanding of the nature of soft rock softening and the process of water damage and damage of soft rock. The solubility of soft rock minerals is generally very low at solid-liquid equilibrium, and a very small error in judging the dissolution equilibrium point can have a huge impact on the solubility measurement results. However, it is difficult to accurately determine the dissolution equilibrium point by conventional methods. Therefore, it is necessary to develop a high-precision measuring device...

Claims

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Application Information

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IPC IPC(8): G01N21/27G01N11/00
Inventor 周翠英李拔通刘镇
Owner SUN YAT SEN UNIV
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