Crystal structure test analysis of Ammonium Metatungstate usually includes a series of steps as below.
- Sample Preparation
Obtain a representative sample from Ammonium Metatungstate product, make sure the sample is dry, pure and uncontaminated.
For X-ray diffraction (XRD) analysis, the sample should be in powder or single crystal form in order to obtain accurate crystal structure information.
- Selection of Test Methods
X-ray diffraction (XRD) is one of the most commonly used methods for crystal structure testing and analysis. It can provide important information about the crystal structure, cell parameters, phase purity and so on.
- X-ray diffraction (XRD) analysis
3.1 Sample loading
Place the sample on the sample stage of the X-ray diffractometer and make sure the sample surface is flat.
3.2 Setting parameters
Select an appropriate X-ray source, such as the copper (Cu) Kα line (wavelength λ = 1.5406 Å).
Set the scanning range, usually from a few degrees to a few degrees ten, depending on the crystal structure of the sample.
Set the step angle, usually 0.01° or 0.02°, to obtain sufficiently fine data.
3.3 Making Measurements
Start the X-ray source, begin scanning and record the diffraction pattern of the sample at different angles.
- Data processing
Use the X-ray diffraction software to analyze the obtained pattern and identify the diffraction peaks.
Based on the position, intensity and shape of the diffraction peaks, the crystalline nature of the sample is analyzed.
Bragg’s law was utilized to calculate the lattice constants to know the crystal structure information of the sample. For ammonium metatungstate, it belongs to the cubic crystal system with specific cell parameters.
- Interpretation of results
The positions of the diffraction peaks are analyzed to determine the type of crystal structure and phase purity in the sample.
The results of the crystal structure analysis are further verified in conjunction with other physical and chemical properties.
- Precautions
Ensure that the X-ray diffractometer is properly calibrated before performing experiments.
Follow laboratory safety regulations and use personal protective equipment.
Take care in the preservation and handling of samples to avoid contamination and damage.
- Generalization
Crystal structure testing and analysis of ammonium metatungstate is mainly carried out by X-ray diffraction (XRD) method. Through the steps of sample preparation, selection of test methods, XRD analysis, data processing, and interpretation of results, important information about the crystal structure, cell parameters, and phase purity of ammonium metatungstate can be obtained. This is important for understanding the properties of ammonium metatungstate, optimizing the preparation process, and developing new applications.
More details of ammonium metatungstate product, please visit website: http://ammonium-metatungstate.com/
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