Description

Hydrotalcite is a layered double hydroxide (LDH) mineral and synthetic compound, valued for its unique anion-exchange capacity and thermal stability. Its primary commercial significance lies in its versatile functionality as an acid scavenger, halogen scavenger, and catalyst support material. This makes it a critical component for manufacturers in the polymer, pharmaceutical, and environmental remediation industries seeking to improve product stability and process efficiency.

Application

• Polymer Stabilizer: Acts as a highly effective acid and halogen scavenger in polyolefin (e.g., PP, PE) production to neutralize catalyst residues and prevent polymer degradation.
• Pharmaceutical Antacid: Used as an active pharmaceutical ingredient (API) in antacid and anti-ulcer formulations due to its acid-neutralizing capacity and gastric mucosal protective effects.
• Catalyst & Catalyst Support: Serves as a catalyst for base-catalyzed reactions (e.g., transesterification) or as a support material for other catalytic species, leveraging its high surface area and tunable basicity.
• Anion Exchanger & Adsorbent: Employed in water treatment and environmental applications to remove contaminants like arsenic, chromium, and other oxyanions from wastewater.
• Flame Retardant Additive: Functions as a smoke suppressant and flame retardant filler in polymer composites, releasing water and carbon dioxide upon thermal decomposition.
• PVC Heat Stabilizer: Used as a co-stabilizer in polyvinyl chloride (PVC) formulations to absorb and neutralize hydrochloric acid released during thermal processing, preventing "zinc burning."
• Controlled Release Agent: Utilizes its interlayer structure for the controlled release of agrochemicals, pharmaceuticals, or corrosion inhibitors.

Basic Information

Product Name	Hydrotalcite
CAS No.	11097-59-9
Molecular Formula	Mg6Al2(CO3)(OH)16 · 4H2O (Typical)
Molecular Weight	~603.98 g/mol (Anhydrous basis)
Synonyms	Aluminum Magnesium Carbonate Hydroxide; Aluminum Magnesium Hydroxide Carbonate; Layered Double Hydroxide (LDH); Mg-Al Hydrotalcite; HT; Carbonate Hydrotalcite; Hydrotalcite (Mg6Al2(OH)16CO3·4H2O); Synthetic Hydrotalcite
EINECS	234-319-3

Quality Control

Our Hydrotalcite is manufactured under a strict quality management system. Each batch is tested to ensure consistent chemical composition, particle size distribution, and functional performance. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay (MgO and Al2O3 content), anion content, loss on ignition, and specific surface area. Production can be aligned with cGMP guidelines for pharmaceutical applications upon request.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, the material must be stored in a cool, dry place at room temperature (15-25°C/59-77°F) with low humidity. Opened containers should be resealed immediately under a dry atmosphere to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White fine powder
Identification (IR)	Conforms to standard
Assay (as MgO & Al2O3)	Contact for details
Carbonate Content	Contact for details
Loss on Ignition (LOI)	Contact for details
Particle Size (D50)	Customizable (e.g., 1-10 µm)
Specific Surface Area (BET)	Customizable (e.g., 5-50 m²/g)
Heavy Metals (as Pb)	< 20 ppm
Acid Neutralizing Capacity	> 12 mEq/g

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