Hebei Messi Biology Co., Ltd. stated that magnesium oxide is mainly used in brominated butyl rubber plugs and halogenated butyl rubber plugs, and its main functions are vulcanization accelerator and acid absorption.
Requirements for magnesium oxide: Generally, both light and active magnesium oxide are used.
Light magnesium oxide requires MgO ≥ 93-95%, CaO ≤ 1.5%, apparent specific volume ≥ 5ml/g, fineness 325 mesh, sieve residue ≤ 0.01, and hydrochloric acid insolubles reach the national standard of superior products.
Requirements for active magnesium oxide: iodine absorption value above 120, other indicators are the same as above.
Clarity and whiteness Generally, the better the whiteness of domestic magnesium oxide, the higher the purity, and relatively speaking, the fewer impurities.
Precautions: The requirements for fineness, mechanical impurities, and black and white spots are very strict. Generally, the number of black and white spots per 10 grams does not exceed 5. Clarity: Mainly related to hydrochloric acid insolubles and purity. It is also related to iron, chloride, sulfate, and other impurities.
In terms of enterprise R&D technology, Hebei Messi Biology Co., Ltd. has its own enterprise R&D center. In terms of technology R&D, it gathers technical elites in the industry and cooperates with the Chinese Academy of Sciences to establish a high-end magnesium salt innovation R&D base, continuously improving its core competitiveness and striving to build an innovative technology-based enterprise. The company has also participated in the revision of industry standards many times and is a standing director unit of the China Magnesium Association and the China Magnesium Salt Association. The independently developed pharmaceutical and food-grade, high-purity nano-grade magnesium salt series products have leading industry levels in various technical indicators and have passed the FDA certification, KOSHER certification, and HALAL certification of the US Food and Drug Administration. The products are widely praised by domestic and foreign customers.
Hebei Messi Biology Co., Ltd. focuses on the construction of standards and systems, and has passed ISO management system, intellectual property management system and other certifications. Since its establishment, economic benefits have shown a leapfrog development trend. So far, it has provided magnesium salt product technical services to more than hundreds of companies, making important contributions to the sustainable development of the domestic magnesium salt industry.