Appearance inspection of ammonium metatungstate is mainly based on its physical properties and appearance characteristics. Below are some suggested steps and points for the appearance inspection of Ammonium Metatungstate:
Color observation
Ammonium metatungstate usually appears as white or slightly yellow crystalline powder.
Observe whether the color of the sample is uniform or not, and whether there is any obvious color difference or impurity.
Morphological observation
Ammonium metatungstate should be crystalline powder and the particle size should be uniform.
Check whether the sample has lumps, uneven particles or other morphological abnormalities.
Solubility observation
Ammonium metatungstate is soluble in water, but the dissolution rate may vary depending on the particle size and crystallinity.
Try placing a small amount of sample in water and observe its dissolution. Rapid dissolution and a clear, transparent solution usually indicate a good quality sample.
Impurity Check
Under natural light or fluorescent lamps, carefully inspect the sample for visible impurities such as black spots, fibers, particles, etc. If available, use a magnifying glass or microscope for more detailed observation.
Packaging Inspection
Check that the packaging of the sample is intact and free from breakage, leakage or contamination.
Ensure that the labels, logos and instructions on the package are clear, accurate and consistent with the sample.
Record and Judgment
Record the above test results in detail, including color, form, solubility, impurities and packaging.
Judge and evaluate the appearance quality of the sample according to relevant standards and experience. If necessary, combine with other chemical analysis methods for further testing.
The above appearance inspection methods are for reference only, and the specific operation may vary according to the actual situation. In the actual inspection process, it should be operated according to relevant standards and requirements, and judged and evaluated in combination with the actual situation.
More details of ammonium metatungstate product, please visit website: http://ammonium-metatungstate.com/
Please contact CHINATUNGSTEN for inquiry and order of ammonium metatungstate:
Email: sales@chinatungsten.com
Tel.: 86 592 5129595
