Method for rapidly and accurately determining hydrogen containing amount of high hydrogen silicone oil

A high-hydrogen silicone oil, accurate measurement technology, applied in measurement devices, chemical method analysis, instruments, etc., can solve problems such as unrealistic feasibility, and achieve the effects of reliable detection results, simple operation and accurate results

Inactive Publication Date: 2018-09-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for general enterprise production workshops and ordinary workers, it does not have practical feasibility in operation

Method used

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  • Method for rapidly and accurately determining hydrogen containing amount of high hydrogen silicone oil
  • Method for rapidly and accurately determining hydrogen containing amount of high hydrogen silicone oil
  • Method for rapidly and accurately determining hydrogen containing amount of high hydrogen silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The hydrogen-containing silicone oil (hydrogen content 1.59%) produced by Zhejiang Hengyecheng Silicone Co., Ltd. was used as the standard sample. Weigh 0.5021g of the standard sample and place it in a 250mL single-port reaction bottle, then measure 60mL of potassium hydroxide solution with a mass fraction of 30% and add it to a 100mL constant pressure dropping funnel, press figure 1 Connect the experimental device well and pay attention to sealing. Start the magnetic stirrer, and drop the liquid in the constant pressure dropping funnel into the single-necked flask at a constant speed. After the reaction was completed, the volume of hydrogen collected was 167 mL. Repeat the test of the standard sample twice, and collect hydrogen volumes of 176mL and 174mL respectively.

[0026] The hydrogen-containing silicone oil produced by Zhejiang Chuangji Silicone Materials Co., Ltd. was used as the standard sample. Weigh 0.5021g of the sample to be tested and place it in a 250m...

Embodiment 2

[0032] Compared with Example 1, the potassium hydroxide solution consumption is changed to 40%, and other conditions remain unchanged.

Embodiment 3

[0034] Compared with Example 1, the mass fraction of potassium hydroxide solution was changed to 80mL, and other conditions remained unchanged.

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Abstract

The invention provides a method for rapidly and accurately determining a hydrogen containing amount of high hydrogen silicone oil used for factory. A principle is characterized in that a Si-H bond inthe high hydrogen silicone oil is reacted with a potassium hydroxide solution to produce hydrogen, a gas volume number can be accurately determined, and then is converted to the gas volume number generated with each gram, and the gas volume number generated with each gram is compared with the volume number per gram of the high hydrogen silicone (a standard sample) with the known hydrogen containing amount, so that the hydrogen containing amount of the sample can be rapidly determined. The method has the advantages of simple operation, and reliable detection result. The method has the advantages of simple, convenient and easy operation, and accurate result, and can be widely used for determining the hydrogen containing amount of the high hydrogen silicone oil for an organosilicon productionenterprise.

Description

technical field [0001] The invention belongs to the technical field of new chemical materials, in particular to a method for quickly and accurately measuring the hydrogen content in high hydrogen-containing silicone oil. Background technique [0002] The hydrogen content (mass fraction of active group hydrogen) in high hydrogen-containing silicone oil is a very important technical indicator, which directly affects the performance of silicone products produced from it. [0003] At present, the determination of hydrogen content in hydrogen-containing silicone oil mainly includes infrared spectroscopy, H-NMR method and chemical method. Infrared spectroscopy is the use of Si-H bonds in hydrogen-containing silicone oil at 2150cm -1 For left and right absorption, use carbon tetrachloride as a solvent to measure the absorbance, and calculate the hydrogen content of the sample according to the calibration curve. H-NMR method is based on deuterated chloroform (CCl 3 D) is a solven...

Claims

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Application Information

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IPC IPC(8): G01N31/00
CPCG01N31/00
Inventor 杨正龙万可希
Owner TONGJI UNIV
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