There is a risk of the grinding ball destroying the lid. The grinding stock
can be added to the mortar bowl either dry or in suspension.
CAUTION!
Do not allow any liquids to flow into the device.
To reduce the grinding noise, we recommend using a
sound absorption hood (order no. 00.0130.17).
7.5.1.2
Parameters
Grinding duration
10 ... 30 min (average)
Amplitude
1 ... 2 mm (max.)
Feed quantity
Max. 10 ml (particle feed size
≤
5
mm)
7.5.1.3
Grinding with liquid nitrogen
CAUTION!
Only use grinding vessels and grinding balls made of
stainless steel, tungsten carbide or zirconium oxide for
grinding with liquid nitrogen.
The device for grinding in liquid nitrogen (no. 00.2000.00) should be used
to embrittle the grinding stock in liquid nitrogen. In this thermally-insu-
lated cryo-box, the grinding vessel and the grinding ball can be cooled
down considerably, and only small amounts of liquid nitrogen must be
refilled during grinding.
CAUTION!
When handling liquid nitrogen, the Guidelines for Labo-
ratories, BGR 120, in particular Chapter 5.4.6, must be
observed as well as the other relevant guidelines and
codes of practice.
Suitable protective clothing, particularly safety goggles
and heat-resistant gloves must be worn. Only the
smallest possible amounts should be handled. Make
sure that the laboratory is adequately ventilated.
Accessories
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