Dashiqiao Hongkai Refractories Co., Ltd.
Contact number: +86-13841720502
Zip code: 115100
Site: Nanlou Economic Development Zone, Dashiqiao City, Liaoning Province
Office Address: Building No. 5, Fenghua Yihe Village, Dashiqiao City, 105
Physical properties: white light powder, odorless, tasteless, insoluble in water and ethanol, melting point 2852 C, boiling point 3600 C, magnesium oxide (light burning powder) has a high refractory insulation performance. It can be transformed into crystals by high temperature burning above 1000 C, and then into dead burning magnesia (light burning powder) or sintered magnesia (light burning powder) when it rises above 1500 C. Specific surface area testing is actually a time-consuming work. Because of the different adsorption capacity of samples, some samples may take a whole day to test. If the testing process is not fully automated, the tester can not leave at any time, and should be highly concentrated, observe the dashboard and control the knob. A little inattention will lead to the failure of the test process, which will waste a lot of valuable time of testers.
Chemical Properties: Magnesium oxide (light burnt magnesia powder) is an alkaline oxide, which has the general properties of alkaline oxide.
Exposed to air, it is easy to absorb water and carbon dioxide and gradually become basic magnesium carbonate. Light products are faster than heavy products, and combine with water to form magnesium hydroxide (light burning powder), which is slightly alkaline, and the pH of saturated water solution is 10.3. Soluble in acid and ammonium salt, insoluble in water, its solution is alkaline. It is insoluble in ethanol.
It reacts slowly with water to produce magnesium hydroxide (light burnt magnesium powder has strong refractive property in the visible and near ultraviolet light range).
Classification: Light magnesia (light burning powder) and heavy magnesia (light burning powder). Light bulk, white amorphous powder. It is odorless, tasteless and non-toxic. The density was 3.58g/cm3. It is insoluble in pure water and organic solvents, and its solubility in water increases with the presence of carbon dioxide. It can dissolve in acid and ammonium salt solution. It is transformed into crystals by high temperature burning. When exposed to carbon dioxide in the air, magnesium carbonate compound is formed. Heavy compact, white or beige powder. It is easy to combine with water and absorb water and carbon dioxide in exposed air. It is easy to gel and harden when mixed with magnesium chloride solution.
Application: It is a method for the determination of sulfur and arsenic in coal, pyrite and steel. Standard for white pigments. Light magnesia (light burning powder) is mainly used as raw materials for preparing ceramics, enamels, refractory crucibles and refractory bricks. It is also used as a polishing agent, adhesives url], fillers for paper, accelerators and activators for chloroprene rubber and fluororubber. After mixing with magnesium chloride and other solutions, magnesium oxide (light burning powder) can be prepared for water regulation. It is used in medicine as an antacid and laxative, in gastric acid excess and gastrointestinal ulcer, and in chemical industry as a catalyst and raw material for making magnesium salt. It is also used for glazing, dyeing meal, phenolic plastics and so on. Heavy Magnesium Oxide (Light Sintered Powder) is used for grinding and semi-roller in rice milling industry. The construction industry is used to make artificial chemical floor, artificial marble heat-proof board, sound-proof board, plastic industry as filling material. It can also be used to produce other magnesium salts.