Instrument: Hetoholten model safe 2010-1.2 class II safety cabinet

Desktop, closed-safe work environment

Specifications

Instrument: Thermo Scientific 371 Forma Steri-Cycle

Surface Characterization

Atoms in solids are arranged in a fixed position by the electrical attraction forces of neighboring atoms. However, atoms on the surface of solid matter have fewer neighboring atoms than those below them. Surface atoms try to attract surrounding gas atoms to compensate for this electrical force imbalance. This leads to a process called adsorption, which provides useful information for the characterization of solids.

This device has not been put into use yet.

Helium pycnometry aims to find volume and true density using Archimedes' fluid overflow principle and Boyle's Law. For maximum accuracy of measurements, the overflowing fluid must be an inert gas that can enter all but the smallest pores. Therefore, Helium gas with small atomic dimensions approaching recesses and pores with a diameter of 0.25 nm is considered suitable for measurements. Helium's behavior as an ideal gas is also a reason for preference. Even when other gases are used (such as nitrogen), there is usually no measurable difference.

Instrument: Attension Theta

The goniometer is used to determine the properties of liquids and solids in various industries and research areas.

Specifications