BRAND: PHYWE
CODE: P7170200
Description: Principle
The oxidation of non-decomposable organic substances and the detection of the carbon as carbon dioxide was carried out long ago by Justus von Liebig. When urea is heated above its melting point, biuret is formed: 2 CO(NH2)2 → H2N-CO-NH-CO-NH2 + NH3
What you can learn about
Carbon cannot always be detected directly in organic substances.
ln such cases, it can be oxidized to carbon dioxide with copper(ll) oxide, carbon dioxide can then be detected with limewater.
Benefits
Easy teaching and efficient learning by using interactive experimentation PHYWE-Software
Experiment is part of a complete solution set with experiments for the topic Organic Chemistry matched with international curriculum: all topics are covered
Scope of Delivery:
1 Butane burner with cartridge, 220 g / 32180-00
Air regulation
Needle valve for adjustment of the fuel gas
T = 1400 ° C
Including 400 ml (220 g) cartridge propane / butane
Height: 23 cm with cartridge
A cartridge is sufficient to burn for about 3 h
With safety valve at the cartridge for removing from the burner
1 Support base, variable/ 02001-00
1 Support rod, stainless steel, different lenghts | Length: 370 mm /
02059-00
1 Boss head / 02043-00
1 Combustion spoon, l=300 mm / 33346-00
1 Spoon, special steel / 33398-00
1 Test tube,180×20 mm, PN19 / 36293-00
1 Glass tubes,right-angled, 10 / 36701-59
1 Test tube, 18×100 mm, 10 pcs | Length: 180 mm / 37658-10
1 Test tube brush w. wool tip,d20mm / 38762-00
1 Test tube rack for 12 tubes, holes d= 22 mm, wood / 37686-10
1 Universal clamp / 37715-00
1 Test tube holder, up to d 22mm / 38823-00
1 Rubber stopper, d = 22/17 mm, 1 hole / 39255-01
1 Protecting glasses, clear glass / 39316-00
1 Glycerol, 250 ml / 30084-25
1 Urea, 250 g / 30086-25
1 Copper-II oxide,powder 100 g / 30125-10
1 Calcium hydroxide solution 1000ml / 31458-70
