You can buy it at a pharmacy.
Table salt crystals growing.
Adding the vinegar and growing the crystals on a sponge alters the appearance a bit.
Instead of using a sponge try growing the crystals on another surface.
To grow your own salt crystals you ll need.
So without some trick you ll never get big and relatively transparent crystals like ones at the photo above.
You can experiment with different types of salt such as sea salt iodized salt himalayan salt and other.
First you need to start with hot water so this is an adult only step if needed.
Though you can see from the above right photo we did not use all of our solution for our tray.
How to grow salt crystals table salt sodium chloride water clean clear container a piece of cardboard optional string and pencil or butter knife optional.
Table salt crystals have a cubic shape.
Epsom salt grows into smaller needle like crystals and faster than table salt.
Yellow substance is inclusions of the iron iii chloride.
Now it s time to add the salt.
The biggest one is about 2cm in size.
Iodized salt won t work as well but will still form crystals.
Table salt takes a few days to grow.
Making a super saturated solution for growing salt crystals.
We microwaved about 2 cups of water for 2 minutes.