Description

Hydrotalcite is a synthetic, layered double hydroxide (LDH) of magnesium and aluminum, known for its versatile anion-exchange and adsorption properties. This material is highly valued for its ability to act as a thermal stabilizer, acid scavenger, and catalyst support across multiple high-performance industries. Key industrial users include polymer manufacturers, pharmaceutical formulators, and environmental technology developers seeking reliable functional additives.

Application

• Polymer Additive: Primary application as a highly effective acid scavenger and thermal stabilizer in PVC and polyolefin processing.
• Pharmaceutical Antacid: Active ingredient in solid oral dosage forms for the treatment of hyperacidity and gastroesophageal reflux disease (GERD).
• Catalyst & Catalyst Support: Utilized in base-catalyzed organic synthesis reactions and as a support material for heterogeneous catalysts.
• Anion Exchanger: Employed in water treatment and environmental remediation for the removal of contaminants like nitrates, phosphates, and chromates.
• Adsorbent: Used for the purification of gases and liquids, including the removal of acidic components and dyes.
• Flame Retardant Synergist: Enhances the performance of primary flame retardants in various polymer composites.
• Nanocomposite Precursor: Serves as a precursor for creating advanced polymer-clay nanocomposites with improved barrier and mechanical properties.

Basic Information

Product Name	Hydrotalcite
CAS No.	12304-65-3
Molecular Formula	[Mg6Al2(OH)16]CO3·4H2O (Typical)
Molecular Weight	Contact for details
Synonyms	Aluminum Magnesium Hydroxide Carbonate; Magnesium Aluminum Hydroxide Carbonate Hydrate; Layered Double Hydroxide (LDH); Carbonate Hydrotalcite; DHT-4A; MGAL-HT; ALMAGATE; Synthetic Hydrotalcite; Anionic Clay
EINECS	235-374-6

Quality Control

Our Hydrotalcite is manufactured under a stringent quality management system. Each batch is tested to ensure it meets precise specifications for chemical composition, particle size, and anion exchange capacity. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metals, and loss on drying are provided with every shipment. We can supply grades compliant with relevant pharmacopeial (e.g., USP/Ph. Eur.) or industrial standards 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 a controlled room temperature (15-25°C). Keep the container tightly sealed immediately after use to minimize exposure to atmospheric moisture, which can affect flow properties and performance.

Specification

Item	Specification
Appearance	White fine powder
Identification (IR)	Conforms
Assay (as MgO & Al2O3)	Contact for details
Carbonate Content	Contact for details
Loss on Drying	≤ 2.0 %
Particle Size (D50)	Customizable
Heavy Metals (as Pb)	≤ 20 ppm
Anion Exchange Capacity	≥ 3.0 meq/g

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