Acetone is poisonous and highly flammable.So, what chemical compounds / elements that can use to stabilize it?

Answer 1

Water. Acetone dissolves in water at any proportion; the higher the content of water the lesser the flammability.
Acetone is not poisonous unless exposed for long time to its vapors.

Answer 2

Acetone is not actually all that toxic: as far as I remember, it comes fairly low down in the list of toxic solvents. (I haven't got my data books with me, as I'm writing this in a library.)

Flammability is a bigger problem, though, and I remember at least one rather nasty accident from the days when I used to work in a chemistry lab.

Acetone is an excellent solvent and dissolving almost any solute in acetone will reduce its vapour pressure and hence will make it less toxic and less likely to catch fire. However, the presence of the solute is likely to interfere with its effectiveness as a solvent and will almost certainly cause problems when you try to evaporate off the solvent.

The best solution is to instal efficient fume extractors and to test them regularly. If there are a number of people using the acetone (in a workshop, say), they should all be trained to understand how the fume extractors work and to know which areas of the workshop are safe for the handling of acetone. If some liquid acetone catches fire, then it is quite safe to use a water-based fire extinguisher on it, as acetone and water are miscible. If there's a build-up of acetone vapour and that ignites, you're in big trouble, man !

I'm not at all clear what you mean by 'stabilize'. Acetone is a very stable compound and, unlike other solvents, such as ethers and some esters, it can be stored for years without any change taking place. Anyway, there is no direct connection between the stability of a substance and its toxicity or its flammability.

Answer 3

It would take a lot of high concentration long term exposure tfor acetone to be poisonous, or else they wouldn't sell nail polish remover.

As for making if less flammable, just add water to it, the more water, the less flammabl it becomes

Answer 4

Foam

Answer 5

depends what you want to use it for.