Description

Perlite is a naturally occurring, amorphous volcanic glass that expands significantly when heated, forming a lightweight, porous material. This unique property makes it an exceptionally versatile industrial mineral with critical applications in filtration, insulation, and horticulture. It is essential for manufacturers and processors in the construction, chemical, agricultural, and food & beverage industries seeking reliable, inert, and high-performance functional fillers and filter aids.

Application

• Filtration Aid: Widely used as a filter aid in the food & beverage, pharmaceutical, and chemical industries to improve clarity and flow rates in the filtration of liquids such as beer, wine, juices, and oils.
• Horticulture & Soil Amendment: Acts as an excellent soil conditioner and growing medium component in hydroponics and potting mixes, improving aeration, drainage, and moisture retention.
• Construction Insulation: A key component in lightweight insulating concrete, plasters, and loose-fill insulation for its superior thermal and acoustic properties.
• Cryogenic Insulation: Used as an effective insulator for tanks and pipes storing liquefied natural gas (LNG) and other cryogenic fluids.
• Functional Filler: Serves as an inert, lightweight filler in paints, coatings, plastics, and building materials to reduce density and modify texture.
• Industrial Abrasive: Employed in mild abrasive blasting applications and as an additive in cleansers and soaps.
• Catalyst Support: Provides a stable, porous substrate for catalysts in various chemical processes.

Basic Information

Product Name	Perlite
CAS No.	12427-27-9
Molecular Formula	Not applicable (complex aluminosilicate mineral)
Molecular Weight	Not applicable
Synonyms	Expanded Perlite; Perlite Ore; Volcanic Glass; Hydrated Obsidian; Horticultural Perlite; Filter Perlite; Insulation Perlite; Agronomic Perlite
EINECS	235-465-0

Quality Control

Our Perlite products are processed and graded under strict quality protocols to ensure batch-to-batch consistency and performance for your specific application. We adhere to industry best practices and can supply material meeting various commercial and food-grade standards. A comprehensive Certificate of Analysis (COA) detailing physical and chemical specifications is available for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. As a porous material, protect from excessive moisture to prevent caking.

Specification

Item	Specification
Appearance	White, free-flowing granules/powder
Bulk Density	30 - 150 kg/m³ (varies by grade)
pH (in water)	6.5 - 8.0
Moisture Content	< 1.0 %
Water Absorption	> 300 % (by weight)
SiO₂ Content	> 70 %
Al₂O₃ Content	12 - 16 %
Screen Analysis	Custom grades available (coarse to fine)

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