Technical data

Properties of lithium, sodium and potassium

Article no: P1137300

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Principle

In this experiment, the behavior of the alkali metals in the air as well as the flame coloring during their combustion are investigated.
The reaction products are dissolved in water, the pH being estimated using the phenolphtalein indicator.
Finally, the electrical conductivity of the alkali metals is investigated.

Material

Power supply
Glass tubes

Benefits

Experimental literature available for pupils and teachers: Minimum preparation time
Hazard assessment for pupils and teachers available
Easy teaching and efficient learning using the available interactive experiment literature

Scope of delivery

Retort stand, h = 750 mm	37694-00	1
Ring with boss head, i. d. = 10 cm	37701-01	1
Steel sheet, 150x150x3 mm	45149-00	1
Beakers, Boro, high form, various sizes	46027-00	4
Glass rod,boro 3.3,l=300mm, d=7mm	40485-05	4
Knife, stainless	33476-00	1
Tweezers,straight,blunt, 200 mm	40955-00	1
Round filters, 100 pcs., various sizes	32977-05	1
PHYWE Power supply, universal, analog display DC: 18 V, 5 A / AC: 15 V, 5 A	13503-93	1
Lamp holder E10 on base plate	06002-00	1
Filament lamps 4V/0.08A, E10, 10	06154-03	1
Alligator clips, insulated, black, 10 pcs.	07276-15	1
Connecting cable, 32 A, red, various lengths	07361-01	1
Connecting cable, 32 A, blue, various lengths	07361-04	2
Teclu burner, DIN, natural gas	32171-05	1
Safety gas tubing, DVGW, sold by metre	39281-10	1
Lighter f.natural/liquified gases	38874-00	1
Hose clip f.12-20 diameter tube	40995-00	2
Pasteur pipettes, 250 pcs	36590-00	1
Rubber caps, 10 pcs	39275-03	1
Lithium metal, bottle w.can, 25 g	31523-03	1
Sodium, pieces 100 g	48306-10	1
Phenolphthalein, 0,5% soution in ethanol, 100 ml	31715-10	1
Isopropyl alcohol, extra pure, 1000 ml	30092-70	1