CAS 11097-59-9 Mg-Al Hydrotalcite PVC And CPVC Pipes Stabilizer Hydrotalcite CAS NO.11097-59-9

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CAS 11097-59-9 Mg-Al Hydrotalcite PVC A CPVC Pipes Stabilizer Hydrotalcite

 

Product Description

Hydrotalcite is a layered double hydroxide (LDH) mineral with the general chemical formula [Mg?Al?(OH)??CO?·4H?O]. It is a naturally occurring and synthetic compound widely used as a functional additive in various industries. Hydrotalcite is best known for its application as a heat stabilizer in polymers, especially PVC, and as an acid scavenger. It is also used in pharmaceuticals, catalysis, and environmental applications due to its high surface area, excellent ion-exchange capacity, and thermal stability.

Description

• Chemical Formula: Mg?Al?(OH)??CO?·4H?O
• Structure: A layered double hydroxide (LDH) with positively charged brucite-like layers stabilized by interlayer anions and water molecules.
• Appearance: White or off-white powder.
• Key Function: Acts as a heat stabilizer, acid scavenger, or ion-exchange material.

Technical Data

Property	Value
Molecular Weight	~604 g/mol (varies depending on hydration)
Appearance	White or off-white fine powder
Density	~2.0–2.1 g/cm³
Melting Point	Decomposes at ~220–250°C
Particle Size (D50)	2–10 µm (varies by grade)
Surface Area (BET)	~50–250 m²/g (depending on synthesis method)
pH (10% slurry)	9–10
Thermal Stability	Stable up to 250°C
Water Absorption	~20–30%
Ion Exchange Capacity	High (dependent on interlayer anions)
Solubility in Water	Insoluble; disperses in water
Storage Conditions	Store in a cool, dry place (moisture-sensitive)

Features

1. Heat Stability:
   • Acts as a thermal stabilizer in polymers like PVC and polyolefins, preventing degradation at high temperatures.
2. Acid Scavenging:
   • Neutralizes acidic species formed during polymer degradation or chemical reactions.
3. Ion Exchange Properties:
   • Excellent ion-exchange capacity due to its layered double hydroxide structure.
4. Environmentally Friendly:
   • Non-toxic, non-hazardous, and compliant with environmental regulations; often used as a replacement for heavy metal stabilizers.
5. Versatility:
   • Applicable in a wide range of industries, including plastics, pharmaceuticals, catalysis, and environmental remediation.
6. High Surface Area:
   • Provides excellent adsorption and catalytic properties.

Applications

1. Polymer Industry

• PVC Stabilizer:
  • Used as a heat stabilizer for PVC to replace toxic stabilizers like lead and cadmium.
• Polyolefin Additive:
  • Neutralizes acidic residues during polymer processing, improving product durability and longevity.
• Flame Retardant Synergist:
  • Enhances the performance of flame retardant systems in plastic formulations.

2. Pharmaceuticals

• Antacid:
  • Used in pharmaceutical formulations to neutralize stomach acid.
• Drug Delivery Systems:
  • Acts as a carrier for controlled drug release due to its ion-exchange properties.

3. Environmental Applications

• Adsorbent:
  • Removes heavy metals, dyes, and contaminants from wastewater.
• CO? Capture:
  • Utilized in environmental systems for carbon dioxide adsorption.

4. Catalysis

• Catalyst Support:
  • Used as a support material for catalysts in various chemical reactions.
• Catalyst in Organic Synthesis:
  • Facilitates base-catalyzed reactions, such as transesterification and aldol condensations.

5. Construction Industry

• Corrosion Inhibitor:
  • Used in coatings and cement formulations to reduce corrosion of reinforced steel.

6. Cosmetics

• Skin Care Additive:
  • Provides buffering and stabilizing effects in cosmetic formulations.

Advantages

• Non-Toxic and Safe:
  • Environmentally friendly alternative to traditional heavy metal stabilizers.
• High Efficiency:
  • Provides excellent thermal and acid-scavenging properties with minimal usage levels.
• Versatile Functionality:
  • Suitable for diverse applications, from polymers to environmental remediation.
• Cost-Effective:
  • Offers high performance at competitive costs.
• Sustainable:
  • Derived from abundant and naturally occurring raw materials.

Packaging	1kg-15kg packing	2 PE bag inside + 1 foil bag outside in carton
	25kg-50kg packing	2 PE bag inside + 1 foil bag outside in drum
	Other packing	Customized packing
Drum Size	D38cm*H60cm or customized, 25 kg/ drum
Shipping	1-50kg	International Express	Fast and convenient	Door to Door
	50-500kg	Air Transportation	Fast and cheap	To Air Port
	Above 500kg	Sea Transportation	Cheap and convenient	To Port

 

 

 

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