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Detection method of purity of bromine trifluoride product

A bromine trifluoride, product purity technology, applied in chemical method analysis, preparation of test samples, material analysis by observing the impact on chemical indicators, etc., can solve the problem that there is no unified standard for bromine trifluoride purity detection. , There are no enterprise standards, industry standards or other standards, etc., to achieve the effect of high safety, low cost and easy operation

Inactive Publication Date: 2018-08-24
天津长芦华信化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, there is no uniform standard for the purity detection of bromine trifluoride at home and abroad, and there are no corresponding enterprise standards, industry standards or other standards

Method used

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  • Detection method of purity of bromine trifluoride product
  • Detection method of purity of bromine trifluoride product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A detection method for bromine trifluoride product purity, comprising the following steps:

[0046] (I) Pretreatment of products

[0047] (i) Pour 2.3747 g of bromine trifluoride from the sample bottle into the PTFE sample tube; put the PTFE sample tube containing the sample and the 500 mL PTFE hydrolysis bottle containing 40 mL of deionized water into the refrigerator Freezing treatment in

[0048] (ii) After the sample in the PTFE sample tube and the water in the PTFE hydrolysis bottle are solidified, unscrew the cap of the PTFE hydrolysis bottle and the cap of the PTFE sample tube, and throw the PTFE sample tube into the In the PTFE hydrolysis bottle, quickly tighten the cap of the hydrolysis bottle, and wait for it to melt and react;

[0049] (iii) Transfer the solution obtained in step (ii) to a volumetric flask, and dilute to 250 mL with deionized water to obtain the sample hydrolyzate;

[0050] (II) Extraction of product hydrolyzate

[0051] Take 100 mL of th...

Embodiment 2

[0055] A detection method for bromine trifluoride product purity, comprising the following steps:

[0056] (I) Pretreatment of products

[0057] (i) Pour 1.8243 g of bromine trifluoride from the sample bottle into the PTFE sample tube; put the PTFE sample tube containing the sample and the 500 mL PTFE hydrolysis bottle containing 40 mL of deionized water into the refrigerator Freezing treatment in

[0058] (ii) After the sample in the PTFE sample tube and the water in the PTFE hydrolysis bottle are solidified, unscrew the cap of the PTFE hydrolysis bottle and the cap of the PTFE sample tube, and throw the PTFE sample tube into the In the PTFE hydrolysis bottle, quickly tighten the cap of the hydrolysis bottle, and wait for it to melt and react;

[0059] (iii) Transfer the solution obtained in step (ii) to a volumetric flask, and dilute to 250 mL with deionized water to obtain the sample hydrolyzate;

[0060] (II) Extraction of product hydrolyzate

[0061] Take 100 mL of th...

Embodiment 3

[0065] A detection method for bromine trifluoride product purity, comprising the following steps:

[0066] (I) Pretreatment of products

[0067] (i) Pour 1.7397 g of bromine trifluoride from the sample bottle into the PTFE sample tube; put the PTFE sample tube containing the sample and the 500 mL PTFE hydrolysis bottle containing 40 mL of deionized water into the refrigerator Freezing treatment in

[0068] (ii) After the sample in the PTFE sample tube and the water in the PTFE hydrolysis bottle are solidified, unscrew the cap of the PTFE hydrolysis bottle and the cap of the PTFE sample tube, and throw the PTFE sample tube into the In the PTFE hydrolysis bottle, quickly tighten the cap of the hydrolysis bottle, and wait for it to melt and react;

[0069] (iii) Transfer the solution obtained in step (ii) to a volumetric flask, and dilute to 250 mL with deionized water to obtain the sample hydrolyzate;

[0070] (II) Extraction of product hydrolyzate

[0071] Take 100 ml of th...

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Abstract

The invention discloses a detection method of purity of a bromine trifluoride product. The detection method comprises the following steps: (I) pretreating the product; (II) extracting product hydrolysis liquid; (III) analyzing the purity of the bromine trifluoride product; and (IV) calculating the purity of the bromine trifluoride product. The detection method of the purity of the bromine trifluoride product is simple and practicable, is convenient to operate, achieves low cost, high safety and high measurement accuracy, and is especially applicable to analysis of the bromine trifluoride product which is prepared from fluorine and bromine through direct reaction, and is low in content of bromine pentafluoride in impurities after the bromine trifluoride product is fully distilled.

Description

technical field [0001] The invention belongs to a method for detecting the purity of interhalogen compounds, in particular to a method for detecting the purity of bromine trifluoride products. Background technique [0002] Bromine trifluoride is the most widely used interhalogen compound, and it is also a good solvent. Many inorganic fluorides can be well dissolved in bromine trifluoride, and can also be used as a fluorinating agent for inorganic and organic substances. A good fluorinating agent. [0003] Bromine trifluoride products have the following special chemical properties: Bromine trifluoride is a very strong oxidizing agent with strong oxidizing properties and strong reactivity. It can produce dense smoke when exposed to the air, and can ignite combustible or organic substances. It can fuel the fire in the fire scene; it will explode when in contact with water or organic compounds, and react violently with water, releasing highly toxic smoke. [0004] Due to the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16G01N21/79G01N1/28
CPCG01N1/28G01N21/79G01N31/162
Inventor 张京周红艳刘美林肖初陈博华
Owner 天津长芦华信化工股份有限公司
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