Description

Asbestos CAS NO 1332-21-4 is a collective term for a group of naturally occurring fibrous silicate minerals. Its historical significance stems from its unique combination of properties, including high tensile strength, flexibility, and exceptional resistance to heat, fire, and chemical corrosion. Due to these characteristics, it was once widely utilized in a variety of industrial and construction applications. Today, its use is heavily restricted or banned globally, and it is primarily handled for research, analysis, and specialized remediation purposes.

Application

• Reference Standard and Analytical Testing: Serves as a critical material for calibration, method validation, and quality control in laboratories analyzing environmental samples, building materials, and occupational exposure.
• Scientific and Medical Research: Used in controlled studies to understand mineralogy, fiber toxicology, disease mechanisms, and to develop advanced detection and safety protocols.
• Forensic Analysis: Employed in material identification for legal and insurance investigations related to historical contamination and product liability.
• Remediation and Abatement Training: Provides essential material for training professionals in safe handling, encapsulation, and removal procedures in accordance with strict regulatory frameworks.
• Specialized Industrial Legacy Applications: Supplied under stringent controls for critical, non-substitutable uses in specific high-temperature or friction products where alternatives are not yet viable, subject to full regulatory compliance.

Basic Information

Product Name	Asbestos
CAS No.	1332-21-4
Molecular Formula	Variable (Hydrated Silicate Minerals)
Molecular Weight	Variable
Synonyms	Asbestos Fibers; Chrysotile (CAS 12001-29-5); Crocidolite (CAS 12001-28-4); Amosite (CAS 12172-73-5); Tremolite (CAS 14567-73-8); Actinolite (CAS 13768-00-8); Anthophyllite (CAS 17068-78-9); Fibrous Silicates; White Asbestos (Chrysotile); Blue Asbestos (Crocidolite); Brown Asbestos (Amosite)
EINECS	215-481-4

Quality Control

Every batch of material is rigorously characterized to ensure identity, purity, and fiber morphology consistency, which is critical for reliable research and analytical results. Our quality protocols are designed to meet the exacting requirements of reference material producers and analytical laboratories. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing parameters such as mineralogical composition, fiber length distribution, and analytical-grade purity. We adhere to ISO 17034 principles for reference material production where applicable.

Storage

Preserve in a tightly closed, clearly labeled container, protected from light and physical damage. Store in a cool, dry, well-ventilated area dedicated for hazardous materials, away from incompatible substances. The storage area must comply with all local and international regulations for carcinogenic and hazardous substances.

Specification

Item	Specification
Appearance	White, Gray, Green, or Brown Fibrous Solid
Identification (XRD)	Conforms to Chrysotile / Crocidolite / etc. (as specified)
Mineralogical Purity	≥ 95% (by XRD)
Fiber Length Distribution	Reported on COA
Loss on Drying	≤ 2.0 %
Ash Content	≥ 90 %

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