This experiment to be performed by students themselves,
demonstrates how a mixture of salt and sand can be separated into
its components. This involves adding some water to a mixture of
solid salt and solid sand to make a suspension which is then poured
through a filter paper. The sand will remain in the filter while
the salt will dissolve into a solution which passes through the
filter into a beaker underneath.
| Materiallist (Excerpt) |
Product |
Amount |
|
Support base variable
|
02001-00
|
1
|
|
Bar magnet, l = 72mm
|
07823-00
|
1
|
|
Standard sand,coarse 2500 g
|
31826-79
|
1
|
|
Rock salt, granular, 1 kg
|
31851-70
|
1
|
|
Iron powder, techn. 500 g
|
30067-50
|
1
|
|
Sodium chloride 250 g
|
30155-25
|
1
|
|
Ring with boss head, i. d. = 10 cm
|
37701-01
|
1
|
|
Universal clamp
|
37715-00
|
1
|
|
Boss head
|
02043-00
|
1
|
|
Support rod, stainless steel, d = 10 mm, l = 400 mm
|
02039-00
|
1
|
|
Test tube rack f. 6 tubes, wood
|
37685-10
|
1
|
|
Protecting glasses, clear glass
|
39316-00
|
1
|
|
Circular filter,d 150 mm,100 pcs
|
32977-06
|
1
|
|
Test tube, 18x188 mm, 10 pcs
|
37658-03
|
1
|
|
Glass beaker DURAN®, short, 150 ml
|
36012-00
|
1
|
|
Rubber gloves, size 7
|
39325-00
|
1
|
|
Spatula, powder, steel, l=150mm
|
47560-00
|
1
|
|
Lab. pencil, waterproof
|
38711-00
|
1
|
|
Wash bottle, plastic, 250 ml
|
33930-00
|
1
|
|
Triangle w.pipeclay, l 50mm
|
33277-00
|
1
|
|
Test tube brush w. wool tip,d25mm
|
38762-00
|
1
|
|
Filter funnel, PP, d=60 mm
|
47318-00
|
1
|
|
Rubber stopper, d=22/17 mm, without hole
|
39255-00
|
1
|
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