Technical data

Model of a fire extinguisher

Article no: P7154000

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> Unknown Principle

Carbon dioxide has characteristic properties which are used in the technical applications. For example the flame-smothering effect of the carbon dioxide is used for firefighting. In foam extinguishers carbon dioxide is produced and sprayed as a foam into the burning substances to smother the flames (by displacement of atmospheric oxygen). In this experiment students construct the model of a fire extinguisher. The carbon dioxide forms (prepared by the reaction from sodium carbonate and hydrochloric acid) a foam (with some drops of soap) which is sprayed on burning fuel and the flame (by displacement of oxygen) is smothered.

Learning objectives

Principle of an fire-extinguisher
Properties of Carbon dioxide

Benefits

Easy teaching and efficient learning by using interactive experimentation PHYWE-Software
Experiment is part of a complete solution set with experiments for all Inorganic Chemistry matched with international curriculum: all topics are covered

Scope of delivery

Support base, separable for 2 rods	02001-00	1
Stand rods, stainless steel, various sizes	02059-00	1
Boss head	02043-00	2
Evaporating dish, porcelain, various sizes	32516-00	1
Dish, plastic, 150x150x65 mm	33928-00	1
Beakers, Boro, high form, various sizes	46025-00	1
Erlenmeyer flask, stopper bed, 100 mlSB 29	MAU-EK17082301	1
Glass tube,right-angled,.	MAU-10030703	1
Glass tubes, right-angled, 150 x 80 mm	MAU-10022500	1
Dropping funnel with drip nozzle, 50ml	36912-00	1
Universal clamp	37715-01	2
Rubber stopper 26/32, 2 holes 7 mm	39258-02	1
Rubber hose, various diameters	39282-00	1
Protecting glasses, clear glass	39316-00	1
Graduated cylinders, plastic, various sizes	46287-01	1
Glycerol 99% 100 ml	30084-10	1
Sodium carbonate, anhyd. 250 g	30154-25	1
Sulphuric acid, 95-97%, 500 ml	30219-50	1
Butane burner with cartridge, 220 g	32180-00	1
Stand.petrol b.p.60-95 C 1000 ml	31311-70	1