Description

Ascarite(R) CAS NO 81133-20-2 is a specialized, high-purity reagent grade material widely recognized for its exceptional carbon dioxide absorption capacity. This product is critical for applications requiring precise gas analysis and purification, offering reliable and efficient performance. It is an essential consumable for laboratories, industrial gas processing, and environmental monitoring systems where the removal or quantification of CO₂ is paramount.

Application

• Gas Analysis & Purification: Primary absorbent for carbon dioxide in combustion analysis, gas chromatography, and air quality monitoring systems.
• Laboratory Research: Used in classic analytical setups, such as Dumas nitrogen determination and other gravimetric analysis techniques requiring CO₂ removal.
• Industrial Safety: Employed in closed-circuit breathing apparatus and submarine/satellite life support systems to scrub exhaled CO₂.
• Chemical Synthesis: Acts as a drying and CO₂-scrubbing agent in reactions sensitive to carbon dioxide or moisture.
• Calibration & Standard Gases: Used in the preparation of calibration gas mixtures by selectively removing CO₂ from source gases.
• Pharmaceutical & Food Packaging: Applied in modified atmosphere packaging processes to control and absorb excess CO₂.

Basic Information

Product Name	Ascarite(R)
CAS No.	81133-20-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Ascarite; Sodium Hydroxide on Non-Fibrous Silicate; CO₂ Absorbent; Carbon Dioxide Absorbent; Soda Asbestos; Carbosorb; Sodium Hydroxide-Silica Mixture; NaOH-SiO₂ Absorbent
EINECS	Contact for details

Quality Control

Our Ascarite(R) is manufactured under strict quality protocols to ensure consistent, high-performance CO₂ absorption capacity. Each batch is tested for critical parameters including absorption efficiency, particle size distribution, and chemical stability. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store in a cool, dry place at room temperature (15-25°C). The container must be kept tightly sealed in a dry environment to prevent premature absorption of atmospheric moisture and carbon dioxide, which would degrade product performance.

Specification

Item	Specification
Appearance	White to off-white granules
Identification	Complies
CO₂ Absorption Capacity	≥ 20% (w/w)
Loss on Drying	≤ 2.0%
Particle Size (Mesh)	8-20
pH (slurry)	> 12

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