Description

Magnesium Hydroxide CAS NO 1909-42-8 is a versatile inorganic compound widely recognized for its flame-retardant and acid-neutralizing properties. This high-purity chemical is essential for manufacturers requiring a reliable, non-toxic additive to enhance product safety and performance. It serves as a critical raw material across diverse sectors, including polymer production, environmental remediation, pharmaceuticals, and water treatment.

Application

• Flame Retardant & Smoke Suppressant: A key halogen-free additive in polyolefins (PP, PE), PVC, wires & cables, and rubber compounds.
• Environmental & Wastewater Treatment: Used as an effective neutralizing agent for acidic industrial effluents and in flue gas desulfurization (FGD).
• Pharmaceutical & Nutraceutical: Serves as an active ingredient in antacids and laxatives, and as a magnesium source in dietary supplements.
• Food Industry: Employed as an acidity regulator, color retention agent, and drying agent (FCC grade).
• Agriculture: Functions as a magnesium fertilizer to correct soil deficiencies and adjust pH.
• Specialty Chemicals: A precursor for the synthesis of magnesium oxide and other magnesium salts.

Basic Information

Product Name	Magnesium Hydroxide
CAS No.	1909-42-8
Molecular Formula	Mg(OH)₂
Molecular Weight	58.32 g/mol
Synonyms	Magnesium Dihydroxide; Milk of Magnesia (Suspension); Brucite (Mineral Form); Magnesia Hydrate; Mg(OH)2; Magnesia, hydrated; Magnesium hydrate; E528 (Food Additive)
EINECS	217-622-5

Quality Control

Our Magnesium Hydroxide is produced under a stringent quality management system. We offer various grades, including Industrial, Food (FCC), and Pharmaceutical (USP/EP), each meeting specific purity and performance criteria. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) to ensure traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids. The product is hygroscopic (moisture-sensitive) and should be protected from excessive humidity.

Specification

Item	Specification
Appearance	White fine powder
Identification (IR)	Conforms
Assay (as Mg(OH)₂)	≥ 95.0% - 99.0%
Loss on Drying	≤ 2.0%
Acid Insoluble Substances	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Calcium Oxide (CaO)	≤ 1.0%
Particle Size (D50)	1-10 µm (Customizable)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.