You can put the baking soda directly in the acid but SLOWLY. Just a
small pinch at a time or it will bubble up and go everywhere.
NO NO NO. DO NOT ADD THE BAKING SODA TO THE ACID CONTAINER !!!!!!
You will likely get a geyser of acid all over the place if you add
it to the bottle that has the acid in it. You must dilute the acid
down to around 10 percent in a large bucket and then slowly add the
baking soda or better yet sodium carbonate (washing soda) which has
been dissolved into water first.
Well both Alan Revere in his demo's over the decades, and the
Universities of Utah and Az. are all wrong. The key is to use a
larger container by volume, and slowly by very small amounts in
comparison to the acid, add the baking soda. What you get in the
bubbles is water, carbon dioxide, and sodium nitrates (a type of
salt). While I have low sodium, I don't suggest adding more nitrates
to your diet!
Scaring the solid exhaust out of a person is not good. Giving
cautious sensible instructions doesn't cause an excess methane
evacuation. Adding a pinch or small amount of baking soda to a larger
not filled up container with the acid is what we are taught in the
above educational sites. Yes nitric acid is nasty stuff, treat it
with respect. We are not talking setting up a titration, to drop by
drop equalize a solution. I liked your suggestion of a five gallon
bucket, but diluting the acid was over kill for this. It also raises
another problem of not telling her how to properly dilute the acid.
One way is a BIG NO NO. The other is safe. The old like me system of
KISS applies. Simple is best. Good ventilation, proper safety
precautions for skin, and eyes, and slow with excess space for
bubbling. It is causing enough CO2 emissions we don't need methane
added to it.
If sufficiently scared, take it to a hazardous waste facility and
pay for them to dispose of it. Or take it to a University chemistry
department and donate it.
Aggie who has the medical MRI to prove I'm a genuine PIA (between L4