Does BS dissolve better in cool or warm water?

[sphinxie]

I was under the impression that BS would dissolve better in warm or hot water, so when making the solution I use to wash my hair I warm up the water and then mix the BS in it. It never quite dissolved. At first I thought the BS must just not dissolve totally, but lately I've been taking BS as an antacid... I mix it with tepid/cool water and it dissolves completely in a few minutes.

Does BS dissolve better in cool or warm water? Anyone know what's going on?

[Meiri]

In my experience, temperature doesn't matter.

I mix mine with water in the shower, and invaribly it goes cold as soon as the dissolving starts. The other thing I've noticed with baking soda is that it's less a true solution and more a suspension that's going on. In other words, it settles out if you leave it sitting for any length of time.

[Spastica]

It dissolves better in warm or hot water, but you don't put as much in your water when you're taking it as an antacid (btw, if you have tendencies toward high blood pressure, don't make a habit of using baking soda as antacid -- it's mostly sodium).

When using it for hair, you're probably putting a lot into the water, so some still remains. It could also be your water quality, who knows. I have a hunch it's the quantity.

[sphinxie]

Ah okay. I wondered also because it seemed to foam in slightly hot water, and I wondered if it was crystalizing or something.

That's good to know about high blood pressure... I tend more towards low blood pressure, but you never know when that information could come in handy. Mainly I'm working on not needing it

Today I tried the hair quantity in cool water. It seemed to dissolve better, but there was still plenty that didn't dissolve. Curious that only some can dissolve? I've kept this stuff around for several days and shaken it quite a bit...