Description

Aluminum Magnesium Hydroxide is a high-purity, mixed-metal hydroxide compound with the CAS registry number 39366-43-3. This versatile inorganic material serves as a highly effective acid scavenger and flame retardant synergist in demanding polymer applications. It is essential for manufacturers in the plastics, rubber, and specialty chemical industries seeking to enhance material stability and safety performance.

Application

• Flame Retardant & Smoke Suppressant: A key component in halogen-free flame retardant (HFFR) systems for polyolefins (PP, PE), PVC, wire & cable compounds, and synthetic rubbers.
• Acid Scavenger/Stabilizer: Used to neutralize acidic by-products generated during the processing of polymers like PVC and polyolefins, preventing equipment corrosion and polymer degradation.
• Pharmaceutical Antacid: Acts as an active pharmaceutical ingredient (API) in antacid and anti-ulcer formulations due to its gastric acid-neutralizing properties.
• Wastewater Treatment: Employed as an adsorbent and coagulant aid for the removal of phosphates, fluorides, and heavy metal ions from industrial effluent.
• Ceramic & Glass Precursor: Serves as a precursor material in the synthesis of advanced ceramics, glasses, and catalysts requiring mixed metal oxide compositions.
• Polymer Filler: Functions as a functional filler to modify the thermal and mechanical properties of composite materials.

Basic Information

Item	Details
Product Name	Aluminum Magnesium Hydroxide
CAS No.	39366-43-3
Molecular Formula	AlMg(OH)5 • xH2O
Molecular Weight	119.28 (Anhydrous basis)
Synonyms	Aluminum Magnesium Hydroxide; Magnesium Aluminum Hydroxide; Hydrotalcite (a related mineral form); AlMg Hydroxide; Magnesium Aluminium Hydroxide; Al-Mg Mixed Hydroxide; AIMg(OH)5; Antacid Magaldrate (Pharmaceutical Grade)
EINECS	254-442-1

Quality Control

Our Aluminum Magnesium Hydroxide is manufactured under a stringent quality management system. Each batch is tested to ensure it meets precise specifications for chemical composition, purity, and physical properties. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metal content, and loss on drying are provided with every shipment. We can supply grades compliant with industrial, technical, and pharmaceutical (e.g., USP/EP for Magaldrate) standards upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture and carbon dioxide, which can affect performance.

Specification

Item	Specification
Appearance	White to off-white fine powder
Identification (IR)	Conforms to standard
Assay (as AlMg(OH)5)	≥ 96.0 %
Aluminum (Al) Content	Contact for details
Magnesium (Mg) Content	Contact for details
Loss on Drying (105°C)	≤ 5.0 %
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Particle Size (D50)	Contact for details
pH (5% suspension)	8.0 - 10.5

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