Manganese-containing formaldehyde detection reagent and preparation method thereof

A technology for detecting reagents and reagents, which is applied in the field of manganese-containing formaldehyde detection reagents and its preparation, can solve the problems of low sensitivity and slow response, and achieve high detection efficiency

Inactive Publication Date: 2015-03-11

DONGCHEN LEADER TESTING

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AI-Extracted Technical Summary

Problems solved by technology

The biggest advantage of this method is easy operation, stable performance, small error, no interference from acetaldehyde, and the colored solution can exist stably for 12 hours; the disadvantage is that...

Abstract

The invention discloses a manganese-containing formaldehyde detection reagent and a preparation method thereof. The manganese-containing formaldehyde detection reagent comprises a first reagent and a second reagent, wherein the first reagent comprises the components in parts by weight: 40-60 parts of sulfamide benzoic acid, 50-70 parts of isocyanate, 90-100 parts of an organic solvent, 20-40 parts of amino acid chelate manganese, 10-20 parts of monopotassium phosphate and 60-90 parts of parabromobenzoic acid; the second reagent comprises the components in parts by weight: 30-40 parts of primary arylamine, 40-60 parts of cyclic carboxylic acid, 80-120 parts of inorganic salt, 20-50 parts of succinic acid, 20-30 parts of superphosphate and 80-100 parts of a pyridine derivative. The preparation method comprises the steps: diluting the first reagent by 90-100 times, adding the second reagent, and uniformly mixing the reagents. The detection reagent disclosed by the invention can be used for quickly detecting whether the formaldehyde content is overproof, and the operation is carried out by only 49-54 seconds; compared with the prior art, the manganese-containing formaldehyde detection reagent disclosed by the invention is higher in detection efficiency.

Application Domain

Material analysis by observing effect on chemical indicator

Technology Topic

Inorganic saltsPerylene derivatives +16

Examples

Experimental program(3)
Comparison scheme(1)

Example Embodiment

[0024] Example 1

[0025] Manganese-containing formaldehyde detection reagent, including the first reagent and the second reagent, the components described below are calculated in parts by weight,

[0026] The first reagent includes components: 50 parts of sulfonamide benzoic acid, 60 parts of isocyanate, 95 parts of organic solvent, 30 parts of amino acid chelated manganese, 15 parts of potassium dihydrogen phosphate, and 75 parts of p-bromobenzoic acid;

[0027] The second reagent includes components: 35 parts of primary aromatic amine, 50 parts of cyclic carboxylic acid, 100 parts of inorganic salt, 35 parts of succinic acid, 25 parts of superphosphate, and 90 parts of pyridine derivatives.

[0028] The isocyanate of the first reagent is toluene diisocyanate.

[0029] The organic solvent of the first reagent is acetone.

[0030] The inorganic salt of the second reagent is sodium carbonate.

[0031] The pyridine derivative of the second reagent is 3-pyridinesulfonic acid.

[0032] The cyclic carboxylic acid of the second reagent is benzoic acid.

[0033] The preparation method of the above-mentioned manganese-containing formaldehyde detection reagent includes the following steps:

[0034] (1) Preparation of the first reagent: mix sulfonamide benzoic acid, isocyanate, organic solvent, amino acid chelated manganese, and p-bromobenzoic acid, add potassium dihydrogen phosphate, and mix well;

[0035] (2) Preparation of the second reagent: mix the components uniformly, heat to 110°C, and cool to 45°C.

[0036] (3) Dilute the first reagent to 95 times, add the second reagent, and mix well.

[0037] Detection method: Take a sample of the air to be tested, pass the sample into the detection reagent, and observe the color change of the solution.

Example Embodiment

[0038] Example 2

[0039] Manganese-containing formaldehyde detection reagent, including the first reagent and the second reagent, the components described below are calculated in parts by weight,

[0040] The first reagent includes components: 40 parts of sulfonamide benzoic acid, 50 parts of isocyanate, 90 parts of organic solvent, 20 parts of amino acid chelated manganese, 10 parts of potassium dihydrogen phosphate, and 60 parts of p-bromobenzoic acid;

[0041] The second reagent includes components: 30 parts of primary aromatic amines, 40 parts of cyclic carboxylic acids, 80 parts of inorganic salts, 20 parts of succinic acid, 20 parts of superphosphate, and 80 parts of pyridine derivatives.

[0042] The isocyanate of the first reagent is diphenylmethane diisocyanate.

[0043] The organic solvent of the first reagent is butanone.

[0044] The inorganic salt of the second reagent is potassium nitrate.

[0045] The pyridine derivative of the second reagent is hexahydropyridine.

[0046] The cyclic carboxylic acid of the second reagent is p-dibenzoic acid.

[0047] The preparation method of the above-mentioned manganese-containing formaldehyde detection reagent includes the following steps:

[0048] (1) Preparation of the first reagent: mix sulfonamide benzoic acid, isocyanate, organic solvent, amino acid chelate manganese, and p-bromobenzoic acid, add potassium dihydrogen phosphate, and mix well;

[0049] (2) Preparation of the second reagent: mix the components uniformly, heat to 100°C, and cool to 40°C.

[0050] (3) Dilute the first reagent to 90 times, add the second reagent, and mix well.

[0051] Detection method: Take a sample of the air to be tested, pass the sample into the detection reagent, and observe the color change of the solution.

Example Embodiment

[0052] Example 3

[0053] Manganese-containing formaldehyde detection reagent, including the first reagent and the second reagent, the components described below are calculated in parts by weight,

[0054] The first reagent includes components: 60 parts of sulfonamide benzoic acid, 70 parts of isocyanate, 100 parts of organic solvent, 40 parts of manganese amino acid chelate, 20 parts of potassium dihydrogen phosphate, and 90 parts of p-bromobenzoic acid;

[0055] The second reagent includes components: 40 parts of primary aromatic amine, 60 parts of cyclic carboxylic acid, 120 parts of inorganic salt, 50 parts of succinic acid, 30 parts of superphosphate, and 100 parts of pyridine derivatives.

[0056] The isocyanate of the first reagent is isophorone diisocyanate.

[0057] The organic solvent of the first reagent is N-methylpyrrolidone.

[0058] The inorganic salt of the second reagent is calcium carbonate.

[0059] The pyridine derivative of the second reagent is hexahydropyridine.

[0060] The cyclic carboxylic acid of the second reagent is p-dibenzoic acid.

[0061] The preparation method of the above-mentioned manganese-containing formaldehyde detection reagent includes the following steps:

[0062] (1) Preparation of the first reagent: mix sulfonamide benzoic acid, isocyanate, organic solvent, amino acid chelated manganese, and p-bromobenzoic acid, add potassium dihydrogen phosphate, and mix well;

[0063] (2) Preparation of the second reagent: mix the components uniformly, heat to 120°C, and cool to 50°C.

[0064] (3) Dilute the first reagent to 100 times, add the second reagent, and mix well.

[0065] Detection method: Take a sample of the air to be tested, pass the sample into the detection reagent, and observe the color change of the solution.

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Manganese-containing formaldehyde detection reagent and preparation method thereof

A technology for detecting reagents and reagents, which is applied in the field of manganese-containing formaldehyde detection reagents and its preparation, can solve the problems of low sensitivity and slow response, and achieve high detection efficiency

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

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Description & Claims & Application Information

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