The activity of magnesium oxide is very important for the production of some raw materials. If the activity is not enough, the material quality will not meet the standard. Therefore, it is very important and necessary for us to measure the activity of magnesium oxide .For the layman, how to measure the related activity of magnesium oxide?
1. Take out 100 grams of magnesium oxide samples from different corners and different positions (no less than 3 places) and mix them evenly.
2. Accurately weigh 100g of magnesium oxide powder from the mixing powder and put it in a constant weight dry beaker. Add 400g of pure water to make it completely moist.
3. Put the cup into the baking box with the adjusted temperature (110℃) for more than 2 hours, then set the oven to 150℃ to dry the sample to constant weight.
Activity calculation method: The activity content of magnesium oxide = [(W-100) /45] x 100%, where 100 is the sample weight before hydration; W is the sample weight after hydration;
45 is the conversion factor.
Note: In order to obtain a more accurate value, three parts of 100g magnesium oxide can be tested. Add the final active content value and divide it by 3.
Issues to note:
(1)During the heating process, avoid the slurry splash out of the beaker;
(2) drying time as long as possible, to ensure the complete evaporation of water.
Meishen is the world's leading producer of magnesium oxide, Magnesium oxide is an oxide of magnesium, an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in the form of periclase in nature and is a raw material for magnesium smelting. Magnesium oxide is white or light yellow powder, odorless, tasteless, this product is insoluble in water and ethanol, melting point 2852 ° C, boiling point 3600 ° C, magnesium oxide has high refractory insulation properties. It can be converted into crystal by burning at a temperature above 1000 ° C. If it rises above 1500 ° C, it will form a burnt magnesia or sintered magnesia.
Magnesium oxide can be used in the manufacture of metallurgy, smelting, advanced magnesia bricks, refractory materials and moisturizing materials. It is also widely used in rubber, rubber sheet, rubber products, pharmaceutical industry, food industry, plastic sheet accelerator, glass fiber reinforced plastics and Surface coating of silicon steel sheet, paper production, steel ball polishing, leather treatment, insulation materials, grease, dyes, ceramics, desiccant, resin, flame retardant, etc.
Hebei Meishen Chemical Technology Group is the main magnesium oxide producer in the world. It is also the largest magnesium salt producer in China and has won the ISO9002 quality system certification. It also has GMP-Certification.
With rich experience in the research, development, production, management and operation of magnesium oxide products, Meishen Group has always attached great importance to the research and development of new products and strict requirements on product quality. Meishen has a high-level sales team. The business covers more than 20 countries and regions around the world. It is widely welcomed by new and old customers.
Meishen has a high-level sales team. The business covers more than 20 countries and regions around the world. It is widely welcomed by new and old customers.