How to detect the activity of magnesium oxide

The activity of magnesium oxide is very important for the production of some raw materials. If the activity is not enough, the quality of the material will not meet the standard. Therefore, it is very important and necessary for us to measure the activity of magnesium oxide. For the uninitiated, how to measure the relevant activity of magnesium oxide? Light Burnt Magnesium Powder

1. In the stock magnesia, take out 100 grams of magnesia samples from different corners and different positions (not less than 3 places), and mix them evenly.

2. Accurately weigh 100g of magnesium oxide powder from the mixed powder, put it in a constant-weight dry beaker, add 400g of pure water to make it completely wet.

3. Put the cup into a drying oven with adjusted temperature (110℃), bake for more than 2 hours, and then adjust the oven to 150℃ to dry the sample to constant weight.

Activity calculation method: active content of magnesium oxide = [(W-100)/45] X100%

In the formula, 100 is the weight of the sample before hydration; W is the weight of the sample after hydration; 45 is the conversion factor.

Note: In order to obtain a more accurate value, you can take three 100g magnesium oxide assays, add the obtained active content values, and divide by 3,

Issues to be aware of:

①During the heating process, avoid the slurry splashing out of the beaker;

② The drying time is as long as possible to ensure that the water is completely evaporated.