**Paul Sutton** @zleap@qoto.org · Jul 21, 2023, 18:31

**Paul Sutton** @zleap@qoto.org · Jul 21, 2023, 18:31

Paul Sutton @zleap@qoto.org

Jul 21, 2023, 18:31

A few weeks ago I put some pure Sodium Chloride in a beaker with de-ionised water to dissolve, then pured in to a small glass bowl and lkeft it to evaporate.

All the water has now gone, so I examined the resulting crystals under my USB Microscope.

I think they turned out OK, well some did.

21294e053efa8f75.jpg

**🎓 Doc Freemo 🇳🇱** @freemo@qoto.org · 2023-07-21T18:44:26Z

🎓 Doc Freemo 🇳🇱 @freemo@qoto.org

@zleap You can see the cubic crystals, nice

Jul 21, 2023, 18:44 · · · ·

**Paul Sutton** @zleap@qoto.org · Jul 21, 2023, 18:45

**Paul Sutton** @zleap@qoto.org · Jul 21, 2023, 18:45

Jul 21, 2023, 18:45

Paul Sutton @zleap@qoto.org

@freemo

I can try with other stuff e.g Copper Sulfate. Salt is nice as it is safe, so kids can repeat the experiment.

**Dave T-W** @davoloid@qoto.org · Jul 21, 2023, 18:52

**Dave T-W** @davoloid@qoto.org · Jul 21, 2023, 18:52

Jul 21, 2023, 18:52

Dave T-W @davoloid@qoto.org

@zleap @freemo What does regular salt look like, in comparison?

**🎓 Doc Freemo 🇳🇱** @freemo@qoto.org · Jul 21, 2023, 18:58

**🎓 Doc Freemo 🇳🇱** @freemo@qoto.org · Jul 21, 2023, 18:58

Jul 21, 2023, 18:58

🎓 Doc Freemo 🇳🇱 @freemo@qoto.org

@davoloid @zleap

cc3ce3e884d7b922.jpg

**Dave T-W** @davoloid@qoto.org · Jul 21, 2023, 18:58

**Dave T-W** @davoloid@qoto.org · Jul 21, 2023, 18:58

Jul 21, 2023, 18:58

Dave T-W @davoloid@qoto.org

@freemo @zleap *le sigh*

**Paul Sutton** @zleap@qoto.org · Jul 22, 2023, 17:29

**Paul Sutton** @zleap@qoto.org · Jul 22, 2023, 17:29

Jul 22, 2023, 17:29

Paul Sutton @zleap@qoto.org

@freemo @davoloid

Some table salt also contains Sodium Ferrocyanide (anti caking agent). So I ordered some pure Sodium Chloride from a supplier (Better equipped) who I have bought lots of stuff from, beakers, flasks, etc.