Porto Petroli - Attività 6 - identificazione di plastiche diverse misurandone la densità

Polymer

Density range g /cm ^–3

EPS – expanded polystyrene

0.02 – 0.06

PP – polypropylene

0.89 – 0.91

LDPE – low density polyethylene

0.91 – 0.93

HDPE – high density polyethylene

0.94 – 0.96

PS – polystyrene

1.04 – 1.11

nylon 6

1.14 – 1.16

PVC – polyvinyl chloride

1.20 – 1.55

PET – polyethylene terephthalate

1.38 – 1.40

Liquido

Densità in g/cm ³

Composizione di 1000 cm ³ di soluzione

1

0.79

Ethanol (IDA)

2

0.91

471 g (596 cm³) ethanol in 439 cm³ deionised/distilled water

3

0.94

354 g (448 cm³) ethanol in 586 cm³ deionised/distilled water

4

1.00

Deionised or distilled water

5

1.15

184 g potassium carbonate in 965 cm³ deionised/distilled water

6

1.38

513 g potassium carbonate in 866 cm³ deionised/distilled water (Irritant at this concentration)