Apparatus

Brand

Precision

Magnetic Stirrer

Edmund buhler gmbh

1%

Electronic balance

Golden-Mettler USA

0.001 g

Electric grinder

TRF 300 Super-Trapp

Oven Blue

Blue Pad

1˚C

Muffle Oven

Carbolite Gero

1˚C

Filter paper

Whatman 1

110 mm

Spectrophotometer UV-Visible S23A

Techmel USA

2 nm

Spectrometer

Bruker

4 cm−1

Sieves

ASTM

1 mm et 75 μm