Method for identifying four kinds of dioxynaphthalene isomeride

A technology of isomers and dihydroxynaphthalene, which is applied in the field of identification, can solve the problems that the identification has not yet been reported.

Active Publication Date: 2017-08-01
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the identification of the four isomers of 1,5-dihydroxynap

Method used

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  • Method for identifying four kinds of dioxynaphthalene isomeride
  • Method for identifying four kinds of dioxynaphthalene isomeride
  • Method for identifying four kinds of dioxynaphthalene isomeride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This example verifies the four dihydroxynaphthalene isomers 1,5-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 1,4-dihydroxynaphthalene according to the following steps The feasibility of the identification method:

[0055] (1) Preparation solution

[0056] First use 98% concentrated sulfuric acid and distilled water to prepare 0.025mol / L sulfuric acid as a stock solution, then use 0.025mol / L sulfuric acid solution as a solvent to prepare 0.15mol / L potassium iodate solution and 0.017mol / L [NiL ](ClO 4 ) 2 Solution, 2mol / L malonic acid solution, 4mol / L hydrogen peroxide solution.

[0057] At the same time, using absolute ethanol as a solvent, prepare 0.05 mol / L solutions of 1,5-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 1,4-dihydroxynaphthalene, respectively.

[0058] (2) Oscillation spectrum

[0059] Add magnetons to a 50mL small beaker, then add 15.5mL 0.025mol / L sulfuric acid solution, 5.5mL 0.15mol / ...

Embodiment 2

[0071] This example verifies the four dihydroxynaphthalene isomers 1,5-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 1,4-dihydroxynaphthalene according to the following steps The feasibility of the identification method:

[0072] (1) Preparation solution

[0073] First use 98% concentrated sulfuric acid and distilled water to prepare 0.025mol / L sulfuric acid as a stock solution, then use 0.025mol / L sulfuric acid solution as a solvent to prepare 0.15mol / L potassium iodate solution and 0.017mol / L [NiL ](ClO 4 ) 2 Solution, 2mol / L malonic acid solution, 4mol / L hydrogen peroxide solution.

[0074] At the same time, using absolute ethanol as a solvent, prepare 0.075 mol / L solutions of 1,5-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 1,4-dihydroxynaphthalene, respectively.

[0075] (2) Oscillation spectrum

[0076] Add magnetons to a 50mL small beaker, then add 15mL 0.025mol / L sulfuric acid solution, 6mL 0.15mol / L p...

Embodiment 3

[0088] This example verifies the four dihydroxynaphthalene isomers 1,5-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 1,4-dihydroxynaphthalene according to the following steps The feasibility of the identification method:

[0089] (1) Preparation solution

[0090] First use 98% concentrated sulfuric acid and distilled water to prepare 0.025mol / L sulfuric acid as a stock solution, then use 0.025mol / L sulfuric acid solution as a solvent to prepare 0.15mol / L potassium iodate solution and 0.017mol / L [NiL ](ClO 4 ) 2 Solution, 2mol / L malonic acid solution, 4mol / L hydrogen peroxide solution.

[0091] At the same time, using absolute ethanol as a solvent, prepare 0.1 mol / L solutions of 1,5-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 1,4-dihydroxynaphthalene.

[0092] (2) Oscillation spectrum

[0093] Add magnetons to a 50mL small beaker, then add 15.5mL 0.025mol / L sulfuric acid solution, 5.5mL 0.15mol / L potassium iod...

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Abstract

The invention discloses a method for identifying four kinds of dioxynaphthalene isomeride. The method is characterized in that an H2SO4-KIO3-[NiL](ClO4)2-propane diacid-H2O2 nonlinear chemical oscillation system is utilized as identifying solution, and the four kinds of dioxynaphthalene isomeride can be further identified according to different oscillation responses generated by the four kinds of dioxynaphthalene isomeride of 1,5-dioxynaphthalene, 2,3-dioxynaphthalene, 2,7-dioxynaphthalene and 1,4-dioxynaphthalene. The L in the [NiL](ClO4)2 is 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraaza tetradecane-4,11-diene. An oscillation pattern provided by the identifying method has more intuition, not only can conveniently and quickly identify the four kinds of dioxynaphthalene isomeride of 1,5-dioxynaphthalene, 2,3-dioxynaphthalene, 2,7-dioxynaphthalene and 1,4-dioxynaphthalene, but also can be further widely applied to other isomeride; furthermore, the identifying method is simple in equipment and high in accuracy, and is easy to operate and observe.

Description

technical field [0001] The present invention relates to a kind of identification method, specifically a kind of nickel complex [NiL](ClO 4 ) 2 Catalytic nonlinear chemical system for the identification of four dihydroxynaphthalene isomers 1,5-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 1,4-dihydroxynaphthalene . It belongs to the field of qualitative analytical chemistry. Background technique [0002] 1,5-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene and 1,4-dihydroxynaphthalene have the same molecular formula and belong to aromatic isomers, and their structures are as follows: I) as shown. Each other plays a pivotal role in their respective fields. 1,5-dihydroxynaphthalene is used in organic synthesis, dye intermediates, pharmaceutical intermediates, and photographic industry; 2,3-dihydroxynaphthalene is used in the production of azo dyes; 2,7-dihydroxynaphthalene is used in color reaction testing Oxalic acid...

Claims

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Application Information

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IPC IPC(8): G01N27/26
Inventor 胡刚张望宁胡林孙璇璇沃奇张慧吴蓝宋继梅
Owner ANHUI UNIVERSITY
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