Magnesium sulfate is generally white, but sometimes due to chemical changes it will cause discoloration.there are many different reasons for the discoloration, such as Natural environment, human factors and other factors. The details is as follows:
1. Magnesium sulphate is easily soluble in water and has strong activity. Adding metal of different colors, other colors are obviously enhanced, and the integral color is changed.
2. Depending on the characteristics of heavy metals, the sensitivity of magnesium sulphate is also different.
3. During the preparation process, the main body is active through ion reaction and oxidation. If heavy metal elements are infiltrated, since they are impurity ions, the lattice curve deforms and loses symmetry, showing an effect.
4. Generally, magnesium sulfate is white, and it is inevitable to interfere with other substances in application. The color of heavy metals is heavy, and the whiteness has a significant effect. For example, chromium, manganese, iron, copper, drill bits, cerium, vanadium, lead and other heavy metals constitute impurities. Even a small amount can cause the appearance of heavy metals colors.
5. Magnesium sulphate heptahydrate with different addition amount and characteristics of heavy metals has different color changes. The rutile type is sensitive to the influence of impurities. When the content of rutile type iron oxide exceeds 0,003%, a color appears, and when the content of anatase type exceeds 0,009%, a color reaction occurs.
