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Hydrogen sulphide detecting reagent and preparation method thereof

A detection reagent and technology for hydrogen sulfide, applied in the field of hydrogen sulfide detection reagent and preparation thereof

Inactive Publication Date: 2015-03-25
DONGCHEN LEADER TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the technical solution disclosed in this invention is to use organic compounds and hydrogen sulfide to generate stable complexes, and then measure them. The minimum detection concentration is 100mg / m3, It can be seen that the sensitivity is low, and a very small amount of hydrogen sulfide in the environment will cause harm to the human body. Therefore, this hydrogen sulfide detection reagent is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A hydrogen sulfide detection reagent, comprising the various components of the following parts by mass:

[0022] 15 parts of polyvinyl ammonium phosphate, 6 parts of zinc sulfate, 7 parts of ferric chloride, 12 parts of potassium iodate, 8 parts of sodium thiosulfate, 3 parts of sodium phosphate, 3 parts of iron sulfate, 8 parts of ethanol and 15 parts of water .

[0023] A preparation method of a hydrogen sulfide detection reagent, the preparation steps are as follows:

[0024] (1) Add polyvinyl alcohol ammonium phosphate, zinc sulfate and sodium thiosulfate into water, and stir continuously until completely dissolved to obtain a transparent solution;

[0025] (2) Heat the transparent solution in a water bath at a temperature of 60°C, add ferric chloride, potassium iodate, sodium phosphate and ferric sulfate in sequence, stir continuously, add ethanol and mix evenly to obtain a premixed solution;

[0026] (3) Take out the premixed solution, place it at room temperatu...

Embodiment 2

[0029] A hydrogen sulfide detection reagent, comprising the various components of the following parts by mass:

[0030] 5 parts of polyvinyl ammonium phosphate, 2 parts of zinc sulfate, 3 parts of ferric chloride, 5 parts of potassium iodate, 4 parts of sodium thiosulfate, 1 part of sodium phosphate, 1 part of iron sulfate, 3 parts of ethanol and 5 parts of water .

[0031] A preparation method of a hydrogen sulfide detection reagent, the preparation steps are as follows:

[0032] (1) Add polyvinyl alcohol ammonium phosphate, zinc sulfate and sodium thiosulfate into water, and stir continuously until completely dissolved to obtain a transparent solution;

[0033] (2) Heat the transparent solution in a water bath at a temperature of 60°C, add ferric chloride, potassium iodate, sodium phosphate and ferric sulfate in sequence, stir continuously, add ethanol and mix evenly to obtain a premixed solution;

[0034] (3) Take out the premixed solution, place it at room temperature, a...

Embodiment 3

[0037] A hydrogen sulfide detection reagent, comprising the various components of the following parts by mass:

[0038] 12 parts of polyvinyl ammonium phosphate, 5 parts of zinc sulfate, 6 parts of ferric chloride, 10 parts of potassium iodate, 7 parts of sodium thiosulfate, 3 parts of sodium phosphate, 3 parts of iron sulfate, 7 parts of ethanol and 13 parts of water .

[0039] A preparation method of a hydrogen sulfide detection reagent, the preparation steps are as follows:

[0040] (1) Add polyvinyl alcohol ammonium phosphate, zinc sulfate and sodium thiosulfate into water, and stir continuously until completely dissolved to obtain a transparent solution;

[0041] (2) Heat the transparent solution in a water bath at a temperature of 60°C, add ferric chloride, potassium iodate, sodium phosphate and ferric sulfate in sequence, stir continuously, add ethanol and mix evenly to obtain a premixed solution;

[0042] (3) Take out the premixed solution, place it at room temperatu...

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PUM

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Abstract

The invention discloses a hydrogen sulphide detecting reagent and a preparation method thereof, and belongs to the field of gas detecting technologies. The detecting reagent comprises the following components in parts by weight: 5-15 parts of polyvinyl alcohol ammonium phosphate, 2-6 parts of zinc sulfate, 3-7 parts of ferric trichloride, 5-12 parts of potassium iodate, 4-8 parts of sodium thiosulfate, 1-3 parts of calcium phosphate, 1-3 parts of iron sulfate, 3-8 parts of ethyl alcohol and 5-15 parts of water. The preparation method of the hydrogen sulphide detecting reagent comprises the following steps: dissolving, heating in a water bath and determining volumes. The hydrogen sulphide detecting reagent provided by the invention has the characteristics of high sensitivity and high stability, besides, the measuring result is more accurate, and the reagent can be used for detecting hydrogen sulphide in air.

Description

technical field [0001] The invention belongs to the technical field of gas detection, in particular to a hydrogen sulfide detection reagent and a preparation method thereof. Background technique [0002] Hydrogen sulfide is a by-product of many industrial productions. It is a flammable acid gas, colorless, and has the smell of rotten eggs at low concentrations, and is highly toxic. Currently, more than 70 occupations have opportunities to be exposed to hydrogen sulfide. These occupations include mining, oil extraction and refining, leather manufacturing, rubber synthesis, gas extraction, man-made fibers, paper making, dyestuffs, printing and dyeing, sugar refining, food processing, etc. In addition, hydrogen sulfide is also produced in organic matter corruption sites, so when cleaning garbage, gutters, septic tanks, and vegetable cellars, hydrogen sulfide will also be exposed. Hydrogen sulfide is a strong nerve poison, the main way of invading the human body is inhalation,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 熊开胜张海防谢建庭
Owner DONGCHEN LEADER TESTING
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