Reaction of Group 7 non metals with metals

advertisement

Reaction of Group 7 non metals with metals

Reactions of chlorine gas with sodium, aluminium, magnesium and iron wool.

THIS EXPERIMENT MUST BE CARRIED OUT IN A WORKING FUME CUPBOARD

 A steady stream of chlorine is passed over the heated metal.

 There is a vigorous reaction and the metal chloride is obtained.

NOTE

CLEAPSS Hazard Cards recommend that chlorine is made by dropping 5M hydrochloric acid onto sodium chlorate(1) solution.

DANGERS OF CHLORINE

IRRITANT – To the eyes, skin and respiratory system.

May bring on asthma attacks.

TOXIC – if breathed in . May cause severe lung damage.

Alleviate the symptoms by inhaling 1.0M ammonia vapour

Reactions of bromine gas with sodium, aluminium, magnesium and iron wool.

 As bromine liquid readily vapourizes yielding toxic fumes any experiments should be done in a fume cupboard.

 You must use rubber gloves and goggles.

 Have 1.0Msodium thiosulphate available to neutralise any spills.

 Due to the unpredictable nature of the reactions none of these experiments involving bromine can be recommended.

Download
Study collections