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SILLITIN Z 89 PURISS is a specific type of silica-based powder produced by HOFFMANN MINERAL GmbH. Here's a detailed breakdown based on the provided material specification:

Material Specification Overview

• Producer: HOFFMANN MINERAL GmbH
• Delivery Form: Powder
• Storage Stability: Unlimited

Characteristics and Specifications

• Color Value L*: 95.5 – 97.0 (Tested according to UGR-PV/PT/69 DIN 5033)
• Color Value b*: 2.0 – 6.0
• Residue > 40 µm: ≤ 10 mg/kg (Tested according to UGR-PV/PT/43 DIN EN ISO 787 part 18)
• Volatile Matter at 105 °C: ≤ 0.8% (Tested at RT 20 °C / RH 50% according to UGR-PV/PT/41 DIN EN ISO 787 part 2)
• Particle Size Distribution:
  • D50 (Median Particle Size): 2.4 µm (Tested according to UGR-PV/PT/72 ISO 13320)
  • D97 (97th Percentile Particle Size): 10.5 µm
• pH Value: 7.0 – 9.2 (Tested according to UGR-PV/PT/61 DIN EN ISO 787 part 9)
• > 125 µm Particles: ≤ 0.1% (Tested using Air-jet screening method, UGR-PV/PT/84 DIN EN ISO 4610)
• Electrical Conductivity: ≤ 100 µS/cm (Tested according to UGR-PV/PT/57 DIN EN ISO 787 part 14)

Composition

• Chemical Composition: SiO2 – Al2 [(OH)4Si2O5] mixture
• Main Components: Silica and Kaolinite

Applications

SILLITIN Z 89 PURISS is commonly used in various industrial applications where its specific characteristics are beneficial. Typical applications may include:

• Paints and Coatings: As a functional filler to improve properties like rheology, durability, and matting.
• Plastics: Enhancing mechanical properties and reducing shrinkage.
• Adhesives: Improving bonding strength and stability.
• Rubber: Reinforcing materials to improve wear resistance and flexibility.
• Cosmetics: Used in formulations for its texture-enhancing and absorption properties.

Sillitin® N 82 by Hoffmann Mineral is a functional filler primarily composed of corpuscular silica and lamellar kaolinite. Here are the key details about this product:

Product Description:

• Supplier: Hoffmann Mineral
• Type: Functional filler
• Composition: Mixture of corpuscular silica (quartz) and lamellar kaolinite
• Function: Acts as an extender with low abrasivity and good dispersibility
• Physical Form: Powder
• Product Status: Commercially available

Product Type:

• Fillers / Extenders: Kaolins and Silicas

Properties:

• Molecular Weight: 198 g/mol
• Functionality: 1 (indicating its primary use as a filler/extender)
• Specific Gravity: 0.86 - 0.89 g/cm³ at 25°C
• Acid Value: 0.2 mg KOH/g
• Color (APHA): 60
• Density: 0.86 - 0.89 g/cm³ at 25°C
• Inhibitor Content: 100 - 600 ppm
• Moisture Content: 0.2%
• Viscosity: 2 - 10 mPa-s at 25°C (measured with a Brookfield Viscometer)

Applications:

Sillitin® N 82 is typically used as a functional extender and filler in various industries including:

• Rubber: Enhancing mechanical properties and processing characteristics.
• Plastics: Improving stiffness and dimensional stability.
• Coatings: Providing reinforcement and improving rheological properties.
• Adhesives: Enhancing bond strength and viscosity control.

Additional Information:

• Quality: Offers low abrasivity, facilitating smoother processing and reducing wear on processing equipment.
• Dispersibility: Demonstrates good dispersibility, ensuring uniform distribution within the polymer matrix for consistent product performance.

Summary:

Sillitin® N 82 from Hoffmann Mineral is a versatile functional filler designed to enhance the properties of various materials. Its composition of silica and kaolinite provides a balanced combination of properties suitable for improving performance across different applications in the rubber, plastics, coatings, and adhesive industries.

PoleStar™ 200P is a calcined kaolin product manufactured by IMERYS Kaolin. It is produced by heating highly refined kaolin to temperatures above 1000°C, resulting in various chemical, morphological, and mineralogical changes. This process enhances the properties of the kaolin, making it suitable for specific industrial applications.

Key Properties and Uses:

• Primary Use: Recommended as an opacifying extender for matt emulsion paints, enhancing opacity and improving the visual and functional properties of the paint.
• Brightness: 90.0 ± 1.5 (ISO R457), indicating a high level of whiteness and purity.
• Particle Size:
  • +300 mesh (mass % max.): 0.05
  • +10 μm (mass % max.): 12
• Moisture Content: Maximum of 0.5%, ensuring the product remains dry and free-flowing.

Physical and Chemical Properties:

• Specific Gravity: 2.6
• Surface Area: 8 m²/g (BET method), indicating the available surface area for interactions in formulations.
• pH: Neutral (pH 7), making it suitable for various formulations without altering their pH balance.
• Oil Absorption: 50 g/100g, which affects the product's ability to interact with other components in formulations.
• Water Soluble Salt Content: 0.06%, ensuring low levels of water-soluble impurities.
• Densities:
  • Aerated Powder Density: 330 kg/m³
  • Tapped Powder Density: 600 kg/m³

Chemical Composition (by X-Ray Fluorescence):

• SiO2 (Silicon Dioxide): 55%
• Al2O3 (Aluminum Oxide): 41%

Additional Information:

• EINECS Number: 296-473-8
• CAS Number: 92704-41-1

Notice:

The data provided are typical but not production specifications. The supplier, IMERYS Kaolin, offers this information in good faith but does not provide any warranty or representation regarding the product's suitability for any particular purpose.

This product is particularly valued in the paint industry for its ability to improve the opacity and texture of matt emulsion paints, providing both functional and aesthetic benefits.