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Reagents and method for quickly detecting chlorate in firework drug

A technology for detecting reagents, fireworks and firecrackers, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by causing chemical reactions to occur in materials, etc. The effect of mild reagent solution, high detection sensitivity and fast reaction speed

Inactive Publication Date: 2012-02-15
占春瑞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the 1980s, chlorate was used in the fireworks and firecrackers industry. While promoting the development of the industry, it also caused safety hazards. Due to the instability of fireworks and firecrackers prepared with chlorates, explosion accidents occurred frequently and caused huge losses.
[0003] The ferrous salt reduction-potassium permanganate volumetric method must be carried out in the laboratory, which cannot be applied on-site. The operation is also cumbersome and the detection time is long, so it is not suitable for on-site application.
The reagents used in the aniline hydrochloride method are strong acids, which are inconvenient to carry, and aniline is a toxic product, which is not convenient for on-site application, and the color development is various, and the result judgment is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh 5 grams of color developer ferrous chloride, 2 grams of accelerator ammonium molybdate, and 10 grams of complexing agent glycine in a beaker, add 60 milliliters of water and stir to dissolve, then add 5 milliliters of 0.06mol / L sodium dihydrogen phosphate Buffer (pH=6), mix well, and dilute to 100 ml with water to obtain the detection reagent.

[0015] Detection method:

[0016] Sample preparation: Put the firework and firecracker agent to be tested on the white paper, move the white paper up and down until the coarse and fine particles of the firecracker agent are separated, separate the coarser particles in the upper layer, and leave the finer particles in the lower layer as the sample for testing.

[0017] Detection:

[0018] Take a little (about 0.01-0.1g) of the above-mentioned sample and place it on filter paper (60mm×30mm), add 0.05-0.1ml of detection reagent to the center of the sample, if red appears on the filter paper, it is determined that the sample ...

Embodiment 2

[0020] Weigh 1 gram of color developer ferrous chloride, 0.5 gram of accelerator ammonium molybdate, and 2 grams of complexing agent glycine in a beaker, add 60 ml of water and stir to dissolve, then add 2 ml of 0.1mol / L sodium dihydrogen phosphate Buffer (pH=6), mix well, and dilute to 100 ml with water to obtain the detection reagent.

[0021] Detection method:

[0022] Sample preparation: Put the firework and firecracker agent to be tested on the white paper, move the white paper up and down until the coarse and fine particles of the firecracker agent are separated, separate the coarser particles in the upper layer, and leave the finer particles in the lower layer as the sample for testing.

[0023] Detection:

[0024] Take a little (about 0.01-0.1g) of the above sample and place it on filter paper (60mm×30mm), add 0.2-0.5ml of detection reagent to the center of the sample, if red appears on the filter paper, it is determined that the sample contains chlorate (potassium )...

Embodiment 3

[0026] Weigh 2 grams of color developer ferrous chloride, 1 gram of accelerator ammonium molybdate, and 4 grams of complexing agent glycine in a beaker, add 60 ml of water and stir to dissolve, then add 3 ml of 0.05mol / L sodium dihydrogen phosphate Buffer (pH=6), mix well, and dilute to 100 ml with water to obtain the detection reagent.

[0027] Detection method:

[0028] Sample preparation: Put the firework and firecracker agent to be tested on the white paper, move the white paper up and down until the coarse and fine particles of the firecracker agent are separated, separate the coarser particles in the upper layer, and leave the finer particles in the lower layer as the sample for testing.

[0029] Detection:

[0030] Take a little (about 0.01-0.1g) of the above-mentioned sample and place it on filter paper (60mm×30mm), add 0.1-0.2ml of detection reagent to the center of the sample, if red appears on the filter paper, it is determined that the sample contains chlorate (po...

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PUM

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Abstract

The invention discloses reagents and a method for quickly detecting chlorate in a firework drug. The detection reagents comprise ferrous chloride serving as a color-developing agent, ammonium molybdate serving as an accelerating agent, glycine serving as a complexing agent and monobasic sodium phosphate buffer solution serving as a regulating agent. Every 100 milliliters of detection reagents comprises the following components in part by weight: 1-5 parts of ferrous chloride, 0.5-2 parts of ammonium molybdate, 2-10 parts of glycine, 0.01-0.04 part of monobasic sodium phosphate and the balance of water. The concentration of the monobasic sodium phosphate buffer solution is 0.05-0.1 mol / L. The reagents used in the invention are nontoxic, a prepared kit is convenient to carry, a reagent solution is mild, and the detection sensitivity is appropriate. The method has high detection sensitivity, high reaction speed and sensitive destination, and is suitable for field detection.

Description

technical field [0001] The invention relates to a rapid detection reagent and method for chlorate in fireworks and firecracker medicaments. Background technique [0002] In the 1980s, chlorate was used in the fireworks and firecrackers industry. While promoting the development of the industry, it also caused safety hazards. Due to the instability of fireworks and firecrackers prepared with chlorates, explosion accidents occurred frequently and caused huge losses. So much so that in 2002, the General Office of the State Council issued a notice prohibiting the use of chlorates to prepare pyrotechnic agents. Subsequently, standards for chlorate detection methods were released successively: 1) In 2004, the national standard for the determination of chlorate content in pyrotechnic agents (GB / T 19468-2004) was released, using ferrous salt reduction-potassium permanganate volumetric method ; 2) In 2006, the entry-exit inspection and quarantine industry standard (SN / T1731.4-2006) w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 张晓成占春瑞桂家祥李兵刘捷光
Owner 占春瑞