Why does magnesium sulfate heptahydrate change color

Magnesium sulfate heptahydrate is generally white, some times due to chemical reactions will lead to the appearance of discoloration, the cause of its discoloration is a variety of environmental, human operation and other factors will lead to this phenomenon, this article will give you a detailed analysis of the causes of discoloration.

1, magnesium sulfate heptahydrate is easily soluble in water, strong activity, when the addition of other colors of metal, there will be other colors significantly highlighted, so that the whole color change.

2, the characteristics of different heavy metals are different, and the sensitivity of magnesium sulfate heptahydrate with different characteristics to impurities is different, and there will be different reactions after incorporation.

3, in the preparation process, many are ionic reactions or oxidation attacks, the body is more active. Once the heavy metal elements are incorporated in it, because these are impurity ions, the lattice curve will be distorted and deformed so that the symmetry is lost and the effect occurs.

4, the general body is white, in use, it will inevitably be mixed with other substances, some heavy metal color is relatively heavy, will have a significant effect on the white degree. For example, chromium, manganese, iron, copper, diamond, cerium, vanadium, lead and other heavy metals, constitute impurities, even a small amount can appear heavy metal color.

5, the amount of heavy metals and different characteristics of magnesium sulfate heptahydrate, the color change is not the same. The effect of rutile type on impurities is more sensitive, if the content of iron oxide in rutile type is greater than 0, 003%, there will be color, and the content in anatase type is greater than 0, 009% before the color response will occur.

The reason for the discoloration of magnesium sulfate heptahydrate is understood by everyone. In fact, as a chemical substance, it can react with many substances to cause changes in color. Of course, in order to prevent its discoloration, we must take corresponding solutions in time to prevent the addition of substances that cause discoloration.

The above content is provided by Jiangsu Mineng Biotechnology Co., LTD., a food additive magnesium sulfate manufacturer