Magnesium Hydroxide (CAS 309-42-8) is a versatile inorganic compound with significant applications in both the pharmaceutical and industrial sectors. As a chemical intermediate, its reliable sourcing and consistent quality are paramount for end-users. This article provides a comprehensive overview of its specifications and applications, tailored for procurement managers and R&D professionals seeking to buy this essential material from a reputable China manufacturer.
The physical appearance of Magnesium Hydroxide is a fine white powder, with minimal solubility in water. Its chemical formula, Mg(OH)2, and CAS number, 309-42-8, are standard identifiers in the chemical industry. We offer this product in various grades, including BP2010, USP35, and industrial grades, each with specific quality parameters. For instance, the assay for pharmaceutical grades typically ranges from 95.0% to 100.5%, with strict limits on impurities like heavy metals, iron, and arsenic. These detailed specifications are crucial for its use as an antacid, where purity directly impacts safety and efficacy. For buyers interested in pharmaceutical applications, understanding these parameters is key to selecting the right supplier.
Beyond pharmaceuticals, Magnesium Hydroxide is a highly effective flame retardant. In this application, its ability to release water upon decomposition at elevated temperatures plays a critical role in suppressing flames. It is widely used in plastics, rubber, and coatings to enhance fire safety without the environmental concerns associated with halogenated alternatives. Industrial grade Magnesium Hydroxide is optimized for dispersion and performance in these material applications. When you purchase Magnesium Hydroxide for flame retardant purposes, the particle size and surface area can also be important considerations, which we address through our manufacturing capabilities.
As a leading Magnesium Hydroxide supplier and factory in China, we are committed to providing high-quality products at competitive prices. Our extensive experience in chemical manufacturing ensures a stable supply chain, from raw material sourcing to final product delivery. We encourage potential buyers to reach out to us for detailed product inquiries, sample requests, and to obtain a quote for Magnesium Hydroxide. Our team is ready to assist you in finding the ideal grade of Magnesium Hydroxide to meet your specific application requirements and procurement goals.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.