dcybroz said:
I have also been shocked by 220v dc (it's not as bad as you think)
Au contraire, it is as bad as I think.
If you were lucky enough once to not have had as bad an experience that 220 v can deliver, the second time ( let's just hope there is no second time ).
Put that experience down as " I will give safety the utmost importance and perform with diligence so as to not harm myself or anyone else"
There is a saying in carpentry
Measure twice.
Cut once.
I would recommend you first try with household mixing of reactants found at home first and become adept at that measuring quantities correctly and accurately, recording the reactions, and hone that first before moving on to more potent chemicals.
You have lots right there
vinegar
baking soda
ammonia
bleach
table salt
oil(s)
water
protein
sugar
soap
gelatin
lemon juice
...
And some of those are toxic, even if they are readily available, and widely used.
Chemistry is not just about making flashes and smoke, or stinky smells, and the ohh, aww.
Take for example the oils in your kitchen.
Lots to do there.
Which oil is lighter than the other, and will float on the top.
Why.
What is its density, and how do I find out.
At what temperature, when heated does the oil start smoking.
Is wax more dense then the liquid oil.
if you really get into it, that would take you months of experimentation.
Get some litmus paper and check items for acidity or alkalinity.
Is tea or coffee an acid or a base.
What about other beverages, lemon juice, milk, tap water.You really don't have to go out and buy stuff right off the mark.
As
@Mayhem mentioned keep records of everything you do, for future re-consideration.
Also,
Check the MSDS of each chemical you will be using.
https://en.wikipedia.org/wiki/Safety_data_sheet
Sometimes they go overboard will the hazard relevant to certain chemicals, but at least the information does give one a sense of what to do for spills and proper handling as per the manufacturer.