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Method for determining the chemical composition of liquid water glass

A technology of chemical composition and water glass, applied in the field of spectral analysis, can solve the problems of manpower, material resources, long analysis time, environmental pollution, etc., achieve high precision and accuracy, fast analysis speed, and improve the efficiency of analysis and testing

Active Publication Date: 2015-10-28
WUHAN TEMO WELDING CONSUMABLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This series of tests will consume a lot of manpower and material resources (hydropower, chemical reagents, etc.), and the analysis time is also long, about 2 days, and there is a certain pollution to the environment.

Method used

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  • Method for determining the chemical composition of liquid water glass
  • Method for determining the chemical composition of liquid water glass
  • Method for determining the chemical composition of liquid water glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take the detection of high modulus liquid water glass samples produced by a certain factory as an example:

[0038] Firstly, the viscosity of the high modulus liquid water glass is detected. After testing, its viscosity is 3850mPa.s, so the sample needs to be diluted. Accurately weigh 30g of the high modulus liquid water glass sample and place it in a polytetrafluoroethylene beaker. Add 30g of deionized water to it, place the polytetrafluoroethylene beaker on an electric heating plate and heat it at a low temperature, the temperature does not exceed 80°C, and at the same time stir with a glass rod to promote dissolution. After fully dissolving, cool and stand for later use.

[0039] Spread a piece of filter paper on the loading tray of the electronic balance, place the liquid measuring cup on the filter paper, weigh 15g of the prepared liquid water glass sample into the measuring cup, cover the plastic cover, let it stand for 3 minutes, pass Observe whether the filter p...

Embodiment 2

[0046] Take the detection of low-mode liquid water glass samples produced by a certain factory as an example:

[0047] First, the viscosity of the low-mode liquid water glass is tested, and its viscosity is 500mPa.s, so there is no need to dilute the sample.

[0048] Spread a piece of filter paper on the loading plate of the electronic balance, place the liquid measuring cup on the filter paper, weigh 15g of liquid water glass sample into the measuring cup, cover the plastic cover, let it stand for 3 minutes, and observe whether the filter paper has Absorb water to confirm that there is no liquid sample leakage from the measuring cup.

[0049] Start the working software that comes with the instrument. Before the measurement, change the analytical medium to helium, check the parameters of the instrument, and start the quantitative working curve analysis program after the startup is stable, and use the drift correction sample to calibrate the instrument. Select a standard sampl...

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Abstract

The invention discloses a method for measuring chemical components of liquid sodium silicate. The method comprises the following steps: (1) setting a constant value of a liquid sodium silicate standard sample; (2) preparing the liquid sodium silicate sample and determining the sampling amount; (3) drawing a working curve by employing an X-ray fluorescence spectrophotometer; (4) measuring contents of Na2O, SiO2, K2O and S in the liquid sodium silicate sample. The method has the characteristics of high rapidness and accuracy and simple operation, the sample is not required to be subjected to special treatment and can be directly subjected to sample injection and analysis, and various types of sodium silicate can be well measured; moreover, by employing the method, the application range of the X-ray fluorescent spectrometry is widened, and compared with the traditional wet process chemical analysis, the method has the advantages that sampling is simple and convenient, analysis speed is fast, the precision and the accuracy are high, the analytical testing efficiency is greatly improved, and the detection cost is saved.

Description

technical field [0001] The invention belongs to the technical field of spectral analysis, and relates to a method for measuring the chemical composition of liquid water glass. Background technique [0002] Liquid water glass is sodium polysilicate containing water, which is a viscous liquid. It is often used as a bonding agent or adhesive in construction, and it is also one of the important raw materials for the production of acid-resistant cement. Liquid water glass is also an important adhesive and arc stabilizer in the production of welding materials, and its quality is directly related to the performance of the product. For the detection of the chemical composition of liquid water glass, the chemical industry standard HG / T2830-2009 "Industrial Potassium Sodium Silicate" is generally used at present, and the gravimetric method is used to determine K 2 Determination of SiO by O and acid-base neutralization titration 2 and Na 2 O. Determination of S by nephelometric meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/223G01N1/28
Inventor 吴浩魏艳吕奎清袁艺张佑富朱文刚黄志芳
Owner WUHAN TEMO WELDING CONSUMABLES CO LTD
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