Hydrophobic sand

Done the moiré animations and want some more DIY amazing stuff? Look no further.

If I had access to trimethylsilanol when I was growing up, playtime would have been far more exciting. When you combine the compound ((CH3)3SiOH)) with beach sand, hydrophobic sand is born; colourful, impervious, and a tonne of fun!

Hydrophobic sand was originally developed to trap ocean oil spills near the shore. By sprinkling sand on floating petroleum, the sand would mix with the oil and make it heavy enough to sink. It has also been tested by utility companies in the Arctic areas as a foundation for junction boxes, as it never freezes.

‘Magic Sand’ have turned hydrophobic sand into a toy, but it’s really easy to make. Here’s how:

Try it yourself!

Warning – Hydrophobic sand is rubbish for making sand castles.

Info via wikipedia
Vid from Scientific Tuesdays via Household Hacker

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