Method for rapidly detecting concentration of industrial hydrochloric acid

A technology of industrial hydrochloric acid and detection method, which is applied in specific gravity measurement, measuring device, instrument and other directions, can solve the problems of multi-assay instruments and time-consuming, and achieves the effect of simple operation steps, convenient operation and cost saving of reagents.

Pending Publication Date: 2021-12-07
HUANENG POWER INTERNATIONAL
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  • Abstract
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Problems solved by technology

[0011] To sum up, although the method currently used in thermal power plants to check the concentration of industrial hydrochloric acid in the factory can obtain accurate concentration values, it takes a long time and requires more laboratory equipment

Method used

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  • Method for rapidly detecting concentration of industrial hydrochloric acid
  • Method for rapidly detecting concentration of industrial hydrochloric acid
  • Method for rapidly detecting concentration of industrial hydrochloric acid

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0032] A kind of rapid detection method of industrial hydrochloric acid concentration, such as figure 1 ,include:

[0033] 1) Put a set volume of industrial hydrochloric acid sample in the glass test tube, and adjust the temperature of the contents of the glass test tube to the set temperature;

[0034] 2) Immerse the hydrometer in the industrial hydrochloric acid sample in the glass test tube, and then calibrate the temperature of the content of the glass test tube to the set temperature after reaching static equilibrium;

[0035] 3) Read the density of industrial hydrochloric acid...

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Abstract

The invention relates to a method for rapidly detecting the concentration of industrial hydrochloric acid. The method comprises the following steps: putting a set volume of industrial hydrochloric acid sample into a container, adjusting the temperature of the content in the container to a set temperature, immersing a hydrometer into the industrial hydrochloric acid sample in the container, calibrating the temperature of the content in the container to the set temperature after static balance is achieved, and reading the density of the industrial hydrochloric acid through the hydrometer, and obtaining the concentration of the industrial hydrochloric acid through the corresponding relation between the concentration and the density of the hydrochloric acid. Compared with the prior art, the method has the advantages of simplicity and convenience in operation, high efficiency, low cost and the like.

Description

technical field [0001] The invention relates to a hydrochloric acid concentration detection technology, in particular to a rapid detection method for industrial hydrochloric acid concentration. Background technique [0002] At present, the method used by power plants to test the concentration of hydrochloric acid in the plant is the volumetric method. The summary of the volumetric method is as follows: [0003] Using methyl orange as indicator, titrate the sample with sodium hydroxide standard solution, calculate the hydrochloric acid content according to the consumption of sodium hydroxide standard solution, the reaction formula is as follows: [0004] HCl+NaOH→NaCl+H 2 o [0005] There are 2 kinds of reagents needed for the test, namely: sodium hydroxide standard solution with a concentration of 1.0mol / L and methyl orange indicator with a 0.1% solution. There are 6 kinds of equipment needed for the test, which are: 250ml Erlenmeyer flasks with stoppers, pipettes, electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/36
CPCG01N9/36
Inventor 朱平李筱
Owner HUANENG POWER INTERNATIONAL
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