Organic Vermiculite - Fine Grade

Product Overview

Organic Vermiculite - Fine Grade is a naturally occurring, expanded silicate mineral designed for industrial, construction, and agricultural applications. Through thermal expansion, this material achieves a low-density, porous structure (0.1–0.3 g/mL) that offers superior thermal insulation, fire resistance, and moisture management. As a chemically inert material, it is compatible with a wide range of industrial formulations.

This Fine Grade vermiculite is rigorously tested via gravimetric analysis and ICP-OES to ensure a consistent elemental profile. With a typical specific gravity of 1.0 and neutral pH, it serves as an effective lightweight aggregate for concrete, a texturizing agent in coatings, and a soil amendment for horticultural substrates. The comprehensive analysis ensures low trace metal content, making it suitable for processes requiring strict purity controls.

Key Properties

• Grade: Fine
• Assay wt %: 95–100 (typical 97.5)
• Bulk Density: 0.1–0.3 g/mL
• Specific Gravity (20°C): 0.9–1.2 (typical 1.0)
• Appearance: Light brown to golden flakes, odorless
• Residue After Ignition: Max 3% (typical 1.5%)
• Water Content: 0%
• Available Chlorine: 0%

Technical Specifications & Impurity Profile

Tested via Ion Chromatography (IC) and ICP-OES/ICP-MS.

• Chloride (Cl): Max 50 ppm
• Sulfate (SO₄²⁻): Max 200 ppm
• Heavy Metals (as Pb): Max 5 ppm
• Iron (Fe): Max 200 ppm
• Calcium (Ca): Max 200,000 ppm
• Magnesium (Mg): Max 100,000 ppm
• Potassium (K): Max 40,000 ppm
• Sodium (Na): Max 40,000 ppm

Common Applications

• Construction & Manufacturing: Used as a lightweight aggregate in concrete and plaster to reduce structural weight and improve thermal resistance. Serves as a fireproofing component in manufacturing composites.
• Industrial Insulation: Loose-fill insulation for high-temperature equipment, walls, and enclosures due to non-combustibility and thermal stability.
• Agriculture & Horticulture: Acts as a soil amendment to improve aeration and moisture retention in substrates.
• Packaging & Logistics: Provides shock absorption and liquid retention for hazardous material packaging (vermiculite packing material).

Safety & Handling

Store in a cool, dry environment. While non-hazardous, handling expanded vermiculite may generate dust. Use appropriate industrial hygiene practices, including dust masks or respirators and proper ventilation, to minimize inhalation. Incompatible with strong acids and bases.

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