Technical data

The effect of acids and bases on natural and synthetic indicators

Article no: P7510200

Principle

Indicators are dyes, which identify acids or bases with a change of colour. Indicators can be either synthesized or natural dyes. In this experiment students examine the different effects acids and bases have on natural as well as synthetic indicators.

Learning objectives

Function of acids and alkalis

Benefits

Experiment literature available for pupils and teachers: Minimum preparation time
Simple teaching and efficient learning by using the available interactive experiment literature

Scope of delivery

Pipette with rubber bulb	64701-00	6
Protecting glasses, clear glass	39316-00	1
Wash bottle, 250 ml, plastic	33930-00	1
Laboratory pen, waterproof, black	38711-00	1
Test tube brush w. wool tip,d20mm	38762-00	1
Test tube, laboratory glass, various lengths, 100 pcs.	37658-10	1
Hydrochloric acid 37 %, 1000 ml	30214-70	1
Acetic acid 99...100%, 500 ml	31301-50	1
Sodium hydroxide, pellets, 500 g	30157-50	1
Litmus, powder 25 g	31517-04	1
Phenolphthalein, 0,5% soution in ethanol, 100 ml	31715-10	1
Methyl orange soln., 0.1% 250 ml	31573-25	1
Water, distilled 5 l	31246-81	1
Potassium hydroxide pellets,500 g	30103-50	1