M003057 | |
Chemistry | |
<50µm *1 | |
aerosis /high pressure !!*2 |
|
Planetary Micro Mill PULVERISETTE 7 classic line800 rpm |
|
Equipment: |
45 ml zirconium oxide ZrO2 |
|
|
15 g | |
|
<50 µm *1 | |
|
+ water 15ml | |
|
15 min | |
|
aerosis /high pressure !!*2 | |
|
*2: Attention: the sample can not be ground with water as after a time of app. 15min a reaction with a strong aerosis comes out. The whole sample was pushed out through the seals of the lid!! A corrosion of the grinding bowl has to be expected!! |
|
Planetary Micro Mill PULVERISETTE 7 classic line800 rpm |
|
Equipment: |
45 ml zirconium oxide ZrO2 |
|
|
15 g | |
|
<50 µm *1 | |
|
+ benzin (Kp.100°C) 18ml | |
|
120 min | |
|
20%< 1 µm*1 | |
|
*3: In order to avoid a possibly reaction through higher temperature the p-7 was programmed as follows: grinding time 5min + 15min pause + 5x repetition = 30min grinding time a.s.o. for 60min resp. 120min. |