Butyric acid

[Thioacetone]

How long does this last on skin?
I read somewhere it doesn't last long but somewhere else that someone couldn't get the smell out for 1 week haha.

 

[RSG]

Butyric acid does not last long at all in a 1% solution. But as you can see it's rather high impact. Sure if you spill the pure stuff on a piece of wood, etc. you will smell it a week lol

 

[Thioacetone]

I received my order of butyric acid but it does not smell that bad. I made a 20% solution in propylene glycol that I was testing for vape juice flavoring.

I put some on my skin to test. It is interesting. It doesn't really smell like vomit at that concentration. In fact it smelled more like vomit (a faint smell though) when I smelled the sealed bottle that was holding the shrink wrapped and then wax sealed glass bottle of butyric acid. It smells quite fruity and has a sharp acetic nuance.

What seems to smell 20 times worse is rancid butter. I made some rancid butter by saponifying butter then acidifying the fatty acid salts to release the carboxylic acids. That smelled horrible. Much more vomit-like in nature. Also with a more animal/manure/gross kind of smell that is physically repulsive. I theorise this is due to longer chain carboxylic acids probably mainly hexanoic, maybe also octanoic, that are present in butter in addition to butyric acid.

Maybe I am just not that sensitive to butyric acid. But it doesn't really smell that bad to me. Like I am almost a bit disappointed lol. I read all these reports about it being horrible and making people puke so I am quite surprised.

 

[Flavorsthenfrags]

Neat butyric is extremely hard to get off skin. Even after washing with water, soap, ethanol, etc multiple times, it'll last for 2-3 days.

After the first day or so, it doesn't project much, but you'll smell like you haven't showered in a few days.

 

[Thioacetone]

Omg U shouldn't be putting neat butyric acid on your skin, it will burn! It's an acid, similar in strength to acetic acid

Neat butyric is extremely hard to get off skin. Even after washing with water, soap, ethanol, etc multiple times, it'll last for 2-3 days.

After the first day or so, it doesn't project much, but you'll smell like you haven't showered in a few days.

I quite like the smell of butyric acid. Sucks that nobody else does

 

[RSG]

Acetic acid is vinegar. It's ok on skin and people even use it in food and drink it. I mean I wouldn't recommend swimming in it for 6 hours but it's also not quite that dangerous.

I wouldn't say I like or love butyric acid but I also don't hate it. To me it reminds of commodity butter that's been in a fridge for like a year lol That smell.

 

[Thioacetone]

Acetic acid is vinegar. It's ok on skin and people even use it in food and drink it. I mean I wouldn't recommend swimming in it for 6 hours but it's also not quite that dangerous.

I wouldn't say I like or love butyric acid but I also don't hate it. To me it reminds of commodity butter that's been in a fridge for like a year lol That smell.

Vinegar is fine to put on skin it is only 5-10% acetic water and the remainder is water. Glacial acetic acid (100%) is quite acidic and will burn. Not like sulfuric acid but still should be handled with caution. Same goes for 100% butyric which I assume is what the other poster meant by "neat"

Yeah it is weird, my nose seems to desensitise quite rapidly to butyric acid. If I smell the outside of the bottle after not smelling it for a while, it will smell quite strong.

 

[Flavorsthenfrags]

Omg U shouldn't be putting neat butyric acid on your skin, it will burn! It's an acid, similar in strength to acetic acid

I quite like the smell of butyric acid. Sucks that nobody else does

Oh yeah, definitely wasn't intentional! I was compounding a flavor at work and dripped a drop.