Composite reagent kit for checking textile formaldehyde content

A compound reagent and formaldehyde content technology, which is applied in the direction of material analysis by observing the influence on chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problem of easy deviation or misjudgment of formaldehyde content and inaccurate test results and other problems, to achieve the effect of simple and rapid operation, accurate and reliable results, and convenient use

Inactive Publication Date: 2008-12-31
海南出入境检验检疫局检验检疫技术中心
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  • Application Information

AI Technical Summary

Problems solved by technology

Because the color of the formaldehyde color complex obtained by the existing color reaction is the same color regardless of the formald

Method used

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  • Composite reagent kit for checking textile formaldehyde content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Reagent

[0015] Composite reagent A: Mix evenly commercially available 0.1% butyl phenyl ester and commercially available 2% sodium sulfite in a weight ratio of 1:2.

[0016] Composite reagent B: Mix 0.9% phenylethyl alcohol solution and 0.2% sulfuric acid solution in a weight ratio of 1:1 evenly.

[0017] Equipped with nano titanium dioxide reagent.

[0018] (2) Detection

[0019] Put 100mL of distilled water and 0.15g of compound reagent into a conical flask to prepare compound reagent A solution; use a heater, beaker and thermometer to prepare 40°C distilled water; use an electronic balance to accurately weigh 1g of the sample to be tested and cut it into small pieces .

[0020] Take 100mL of distilled water at 40°C, 5mL of compound reagent A solution and the tested sample into the sampling cylinder, let the butyl phenyl ester in the compound reagent A react with the formaldehyde in the tested sample for 10 minutes; take 5mL of the solution from the sampling ...

Embodiment 2

[0022] (1) Reagent

[0023] Composite reagent A: Mix evenly commercially available 0.1% butyl phenyl ester and commercially available 2% sodium sulfite in a weight ratio of 1:3.

[0024] Composite reagent B: Mix 1.5% phenylethyl alcohol solution and 0.4% sulfuric acid solution in a weight ratio of 1:1 evenly.

[0025] Equipped with nano titanium dioxide reagent.

[0026] (2) detection

[0027] Put 100mL of distilled water and 0.15g of compound reagent into a conical flask to prepare compound reagent A solution; use a heater, beaker and thermometer to prepare 40°C distilled water; use an electronic balance to accurately weigh 1g of the sample to be tested and cut it into small pieces .

[0028] Take 100mL of distilled water at 40°C, 5mL of compound reagent A solution and the tested sample into the sampling cylinder, let the butyl phenyl ester in the compound reagent A react with the formaldehyde in the tested sample for 10 minutes; take 5mL of the solution from the sampling ...

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Abstract

The invention discloses a composite reagent case that is used for detecting formaldehyde content of fabrics, which comprises a composite reagent A, a composite reagent B, a nano titanium dioxide reagent and a standard matching sample; wherein, the composite reagent A is prepared by evenly mixing a commercial 0.1 percent butyl phthalate and a commercial 2 percent sodium sulfite according to the weight ratio between 1 to 1 and 1 to 4; the composite reagent B is prepared by evenly mixing a 0.5 to 2 percent phenethyl alcohol solution and a 0.1 to 0.5 percent sulfuric acid solution according to the weight ratio of 1 to 1; the standard matching sample is a color reaction solution group with standard formaldehyde content or a color comparison card. The composite reagent case has convenient use and fast detection, can obtain final reaction solutions with different colors according to the formaldehyde with different densities, can easily distinguish the formaldehyde content in test samples, and has simple and fast operations as well as accurate and reliable results.

Description

technical field [0001] The invention belongs to the field of formaldehyde detection, in particular to a kit for measuring formaldehyde content in textiles. Background technique [0002] Formaldehyde, also known as wood aldehyde or acetaldehyde, is widely used in the chemical industry, and its synthetic products are widely used in households, such as latex paint in furniture, flame retardants on floors, preservatives in textiles, disinfection products, etc. Wait. However, if excessive use causes the content of formaldehyde to exceed the standard, it will cause serious harm to human health. [0003] Due to the strong anti-corrosion ability of formaldehyde, the use of formaldehyde is involved in the process of resin finishing of textiles. In the production of fabrics, in order to achieve anti-wrinkle, anti-shrinkage, etc., or to maintain the durability of printing and dyeing, or to improve the hand feel Therefore, it is necessary to add formaldehyde to the auxiliary agent. Te...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 何志贵杨建忠王耀武吴天良吴淑良黄云黄海民
Owner 海南出入境检验检疫局检验检疫技术中心
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