Are kitchen hotplates which you can buy on Amazon any good for cosmetic chemistry?
This is for home use and not for lab use.
I'm assuming the main problem with these is that they have horrible heat accuracy but I could be wrong.
(Edit)
This is one of the hotplates that I am referring too:
https://www.amazon.ca/Maxi-Matic-ESB-301F-Cuisine-Single-1000-Watt/dp/B000B2WOWE/ref=sr_1_1?crid=1GCA3QM160J38&keywords=hot+plate+electric&qid=1558219247&s=gateway&sprefix=hotplate%2Caps%2C205&sr=8-1
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I think I will try a cheap hotplate since I could afford to break it or dislike it.
I can't seem to find any digital hotplates for anything under $200USD which translates to over $260CAD without taxes (I would need to buy two of them as well).
If I need to, then I will buy digital but for the meantime, I shall try my luck.
Remember you never heat anything in the beaker directly. Always use a water bath.
https://en.wikipedia.org/wiki/Bain-marie
https://en.wikipedia.org/wiki/Heated_bath
https://en.wikipedia.org/wiki/Laboratory_water_bath
If you must warm something above water boiling point, or if you're working with an anhydrous product, use oil instead of water to prevent water vapor from contaminating the formulation.