Technical data

Breathing of human being

Item No. P9620800

Principle

When you breathe in, oxygen enters the lungs and is released into the blood. The blood distributes oxygen throughout the body and carries carbon dioxide back. Carbon dioxide is a waste product of metabolism. When exhaled, the carbon dioxide is then released from the body.

In this experiment, students detect the carbon dioxide content in inhaled and exhaled air. This is achieved with the help of calcium hydroxide by first making lime water. By blowing exhaled air into the lime water, the carbon dioxide is detected.

Scope of supply
Beaker, 250 ml, plastic (PP)	36082-00	2
Spoon, special steel	33398-00	1
Graduated cylinders, plastic, various sizes	36629-01	1
Test tube 160x16 mm, 10 pcs	37656-03	1
Rubber stopper, d = 22/17 mm, 1 hole	39255-01	1
Rubber hose, various diameters	39282-00	1
Protecting glasses, clear glass	39316-00	1
Glass rod, boro 3.3, l=200mm, d=6mm	40485-04	1
Rubber bulb, with glass tube	64170-00	1
Calcium hydroxide 500 g	30054-50	1
Water, distilled 5 l	31246-81	1

Breathing of human being

Scope of supply

France

Netherlands

Belgium

Denmark

Finland

Sweden

Switzerland