report details for FRITSCH laboratory instruments

Planetary Micro Mill PULVERISETTE 7 premium line

1100 rpm

Equipment:

20 ml zirconium oxide (ZrO2) bowl with 20g of 3 mm balls (ZrO2).

Feed quantity:

< 100mg

Feed Size:

< 500 µm

Additive:

+2ml H2O + 3ml Ethanol

Grinding time:

60 min*1

Final fineness:

d50 < 650 nm*2

Comments:

*1: Because of the small amount of sample you will find a lot of abrasion on the grinding set. Grinding steps: 10min grinding + 15min pause (x 6 repetitions).

*2: see the particle size analysis with our Laser-Partikel-Sizer ANALYSETTE 22 -NanoTec on separate page (Meas.-nr. 6709).

Download:

090096_Coal.pdf

Protocol number:	M090096
Industry:	Geology / mineralogy
Feed Size:	< 500µm
Desired Fineness:	d50 < 650nm