Description

Apiezon H CAS NO 65154-51-0 is a high-performance, high-vacuum grease widely recognized for its exceptional chemical and thermal stability. This product is critical for applications requiring a reliable, non-volatile lubricant and sealant in demanding environments. It is essential for industries such as analytical instrumentation, semiconductor manufacturing, and high-vacuum research, where consistent performance under extreme conditions is non-negotiable.

Application

• High-vacuum system seals and lubricants for analytical instruments (e.g., mass spectrometers, electron microscopes).
• Lubrication and sealing for glassware joints and stopcocks in laboratory and industrial settings.
• General-purpose, inert grease for applications involving strong acid/organic solvent exposure.
• Sealant for rotary vane and diffusion pumps in semiconductor fabrication equipment.
• Lubricant for bearings and gears operating in high-temperature or corrosive environments.
• Protective coating for metal surfaces to prevent oxidation and corrosion during storage or transport.

Basic Information

Product Name	Apiezon H
CAS No.	65154-51-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Apiezon Grease H; High Vacuum Grease H; Apiezon H Grease; Hydrocarbon High Vacuum Grease; Apiezon Type H; 65154-51-0; Mineral Oil Grease (High Vacuum Grade); Paraffin Grease (High Vacuum)
EINECS	Contact for details

Quality Control

Our Apiezon H is manufactured under strict quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes rigorous testing for key parameters including viscosity, volatility, and chemical inertness. A Certificate of Analysis (COA) detailing these specifications is available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. Ensure the container is kept tightly sealed when not in use to prevent contamination.

Specification

Item	Specification
Appearance	Translucent to pale yellow grease
Density (g/cm³)	~0.86 - 0.88
Vapor Pressure (20°C)	< 10⁻⁸ Torr
Drop Point	> 200 °C
Volatility (100°C, 24h)	< 0.1 %
Solubility	Insoluble in water; Soluble in hydrocarbons

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