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Trace hydrogen sulfide detection reagent and preparation method thereof

A detection reagent and hydrogen sulfide technology, applied in the field of detection reagents, can solve the problems of undetectable trace hydrogen sulfide and long detection time, and achieve the effects of short detection time, sensitive detection and reasonable formula

Inactive Publication Date: 2015-03-04
DONGCHEN LEADER TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many kinds of hydrogen sulfide detection kits on the market, but there are many shortcomings in the detection of hydrogen sulfide: the detection time is too long, and trace hydrogen sulfide cannot be detected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Trace hydrogen sulfide detection reagent, including the following raw materials in parts by mass: 14 parts of copper sulfate pentahydrate, 10 parts of butyl acetate, 1 part of zinc sulfate, 4 parts of sulfamic acid, 8 parts of sodium citrate, 5 parts of calcium sorbate 3 parts, 3 parts of citric acid, 3 parts of dodecanol, 32 parts of water.

[0025] The preparation method of the trace hydrogen sulfide detection reagent comprises the following steps: adding copper sulfate pentahydrate, sodium citrate, calcium sorbate, and zinc sulfate into water in sequence according to the mass ratio, stirring evenly, and then adding butyl acetate in sequence , sulfamic acid, citric acid and dodecanol, heated up to 50°C, stirred evenly, and allowed to cool naturally to obtain the trace hydrogen sulfide detection reagent.

[0026]

Embodiment 2

[0028] Trace hydrogen sulfide detection reagent, including the following raw materials in parts by mass: 26 parts of copper sulfate pentahydrate, 18 parts of butyl acetate, 5 parts of zinc sulfate, 12 parts of sulfamic acid, 24 parts of sodium citrate, 12 parts of calcium sorbate 12 parts of citric acid, 10 parts of dodecanol, 42 parts of water.

[0029] The preparation method of the trace hydrogen sulfide detection reagent comprises the following steps: adding copper sulfate pentahydrate, sodium citrate, calcium sorbate, and zinc sulfate into water in sequence according to the mass ratio, stirring evenly, and then adding butyl acetate in sequence , sulfamic acid, citric acid and dodecanol, heated up to 60°C, stirred evenly, and allowed to cool naturally to obtain the trace hydrogen sulfide detection reagent.

[0030]

Embodiment 3

[0032] Trace hydrogen sulfide detection reagent, including the following raw materials in parts by mass: 16 parts of copper sulfate pentahydrate, 12 parts of butyl acetate, 2 parts of zinc sulfate, 6 parts of sulfamic acid, 10 parts of sodium citrate, 6 parts of calcium sorbate 5 parts, 5 parts of citric acid, 5 parts of dodecanol, 34 parts of water.

[0033] The preparation method of the trace hydrogen sulfide detection reagent comprises the following steps: adding copper sulfate pentahydrate, sodium citrate, calcium sorbate, and zinc sulfate into water in sequence according to the mass ratio, stirring evenly, and then adding butyl acetate in sequence , sulfamic acid, citric acid and dodecanol, heated up to 55°C, stirred evenly, and allowed to cool naturally to obtain the trace hydrogen sulfide detection reagent.

[0034]

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PUM

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Abstract

The invention relates to a trace hydrogen sulfide detection reagent and a preparation method thereof, belonging to the field of detection reagents. The trace hydrogen sulfide detection reagent is prepared from the following raw materials in parts by weight: 14-26 parts of copper sulfate pentahydrate, 10-18 parts of butyl acetate, 1-5 parts of zinc sulfate, 4-12 parts of sulfamic acid, 8-24 parts of sodium citrate, 5-12 parts of calcium sorbate, 3-12 parts of citric acid, 3-10 parts of dodecyl alcohol and 32-42 parts of water. The trace hydrogen sulfide detection reagent has a reasonable formula, is extremely sensitive to the detection of hydrogen sulfide, and can be used for detecting trace hydrogen sulfide; and the lowest detection amount of hydrogen sulfide can be 0.01mg / L, the detection time is short and the detection efficiency is high.

Description

technical field [0001] The invention belongs to the field of detection reagents, in particular to a trace hydrogen sulfide detection reagent and a preparation method thereof. [0002] Background technique [0003] Hydrogen sulfide, molecular formula H 2 S, with a molecular weight of 34.076, is a flammable acid gas under standard conditions. It is colorless and has the smell of rotten eggs at low concentrations. It is highly toxic. Hydrogen sulfide is an important chemical raw material with great solubility in organic amines. , It also has greater solubility in caustic solution. Combustion in excess oxygen produces sulfur dioxide and water, and produces water and free sulfur when the supply of oxygen is insufficient; it is stable at room temperature, soluble in water, and the aqueous solution is weakly acidic, and it will gradually become cloudy due to oxidation and precipitation of sulfur when in contact with air. Combustion in air produces a blue flame and produces SO 2...

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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