Help Table salt does not dissolve (just practicing), why is that and can this also happen with SN?

[http-410]

To get an idea for the salt/water ratio and taste for the SN method, I tried mixing normal table salt in water (no, I won't drink it). In doing so, I noticed that it doesn't quite dissolve. I think I have been stirring for 10-15 minutes, but there is still a thick layer of salt on the bottom. Is it because it is iodized salt or is it the anti caking agent?

Is this different with SN (mine has a purity of 98,5%)?

Stan's Guide states:

It is important that all of the SN is dissolved. If there are crystals still at the bottom of the glass, add small bits of water and keep stirring. The aim is to use as little water as possible.

Actually, I would not be comfortable adding more water if the goal is to use as little water as possible. I wonder if in the end I am really too stupid to kill myself...

 

[Choco]

I guess sn Is easier to dissolve

 

[Cheza_mus]

Pure table salt should be able to dissolve even if iodised...my view is that perhaps the water was not pure

 

[http-410]

No, the water could not be purer.

In retrospect, I suspect I took too much salt. I'll try again later. What a waste.

 

[Circles]

If you're using cold water then regular salt isn't going to dissolve as much as in warm water. Use a spoon to stir it and then it'd be dissolved better. As for SN I've read it's okay to use room temperature water cause the grains are much smaller and powder-y than the grains of regular salt. Unless it's hardened or something then idk.

 

[willitpass]

water has a limit for how much solute it can dissolve by volume. think of it in terms of molecular number. if there are 50 water molecules, that means there are 100 hydrogen molecules and 50 oxygen molecules. table salt is sodium chloride, or NaCl. if you have 250 molecules of salt in 100 molecules of water, the water will run out of salt molecules to bind to. when dissolving salt, one molecule of sodium binds to oxygen and one molecules of chlorine bonds to each hydrogen, breaking down the NaCl compound. that means 1 water molecule can break down 1.5 salt molecules. if you put more salt in water than there is water, the water can no longer break down NaCl any further and the excess salt will gather at the bottom as it is more dense