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Adding Piranha Solution as a new acid(oxidizer)/pyrochem (post your thoughts!)
#1
Just an idea to add Piranha Solution (famous acid oxidizer that can eat through and dissolve just about any organic matter) into ss13.

the IRL mix ratio is usually: a 3:1 mixture of sulfuric acid and 30% hydrogen peroxide. And notably, the H2O2 must be added second and at not a too high amount or the mixture will become unstable and bubble out of the beaker or explode. 

I'll just add this here from wikipedia: 

  • Piranha solution must be prepared with great care. It is highly corrosive and an extremely powerful oxidizer. Surfaces must be reasonably clean and completely free of organic solvents from previous washing steps before coming into contact with the solution. Piranha solution cleans by decomposing organic contaminants, and a large amount of contaminant will cause violent bubbling and a release of gas that can cause an explosion.[4]
  • Piranha solution should always be prepared by adding hydrogen peroxide to sulfuric acid slowly, never in reverse order.[5][6] This minimises the concentration of hydrogen peroxide during the mixing process, helping to reduce instantaneous heat generation and explosion risk. Mixing the solution is an extremely exothermic process. If the solution is made rapidly, it will instantly boil, releasing large amounts of corrosive fumes. Even when made with care, the resulting heat can easily bring the solution temperature above 100 °C. It must be allowed to cool reasonably before it is used. A sudden increase in temperature can also lead to a violent boiling of the extremely acidic solution. Solutions made using hydrogen peroxide at concentrations greater than 50 wt % may cause an explosion.[7] The 1:1 acid–peroxide mixtures will also create an explosion risk even when using common 30 wt. % hydrogen peroxide.[8]

currently hydrogen peroxide (H2O2) doesn't exist in the game.... or does it?
Space cleaner is essentially H2O2, but perhaps for a recipe that has potentially explosive and highly corrosive outcomes needs to be a bit more balanced! 
Upon some research, H2O2 in it's consumer form is essentially space cleaner, however, for a highly concentrated version that would be used in Piranha Solution, it would need to be something closer to High-Test Peroxide a chemical itself that is intensely powerful and used as a propellant in modern rocketry. The concentration of this chem would serve as the main balance for creating Piranha Solution, and therefore should arguably take 10 minutes for someone (who knows what they're doing) to synthesize about 200u. 
- Additional info from Wikipedia about High-Test Peroxide:
  • Hydrogen peroxide works best as a propellant in extremely high concentrations (roughly over 70%). Although any concentration of peroxide will generate some hot gas (oxygen plus some steam), at concentrations above approximately 67%, the heat of decomposing hydrogen peroxide becomes large enough to completely vaporize all the liquid at standard pressure. This represents a safety and utilization turning point, since decomposition of any concentration above this amount is capable of transforming the liquid entirely to heated gas (the higher the concentration, the hotter the resulting gas). This very hot steam/oxygen mixture can then be used to generate maximal thrust, power, or work, but it also makes explosive decomposition of the material far more hazardous.
  •  Contact with skin causes immediate whitening due to the production of oxygen below the skin. Extensive burns occur unless washed off in seconds. Contact with eyes can cause blindness, and so eye protection is usually used.
- This chem in itself could drastically change the toxins and atmosphere meta if integrated to this extent, but that is not the focus of this post... 

SO, how does one concentrate H2O2? (space cleaner) 
One way funnily enough it's by adding sulfuric acid, which creates Piranha Solution, but, when both are put in a sealed container in separate beakers with phosphorus pentoxide, after some time (IRL days-weeks) it concentrates it! (it's a lot more convoluted than this, but this is a game, not a chemistry lesson.)

In game, we could see this as a recipe of: space cleaner (H2O2 unconcentrated) + sulfuric acid + a phosphorus based chem that acts as a desiccant, so either smoke powder or Photophosphide (smoke powder makes more sense, but both have their dangers if exposed to their ignition source). + a stabilizer + The final most important ingredient, TIME. 

TLDR recipe for High Test Peroxide (HTP): space cleaner + sulfuric acid + smoke powder + stabilizing agent + time (in a beaker with a lid).

What this process would do is slowly concentrate the space cleaner into HTP, which then (so as not to instantly remove the HTP) would slowly mix with the sulphuric acid to create Piranha Solution. At this point though, as the amount of Piranha solution is created, the hotter the beaker should be getting, causing the smoke powder to ignite if exposed to the air. Another issue is that at a certain temperature, sulphuric acid will break and shatter the beaker! This is where things get a little messy around the dangers of synthesising it, so let's just say if there's an over abundance of HTP to sulphuric acid ratio, causing heat... BOOM!

This synthesis is a bit silly, so perhaps the existence of a stabilizing agent stops the sulphuric acid and HTP from mixing right away, but will slowly deplete as more HTP is synthesised, meaning you would need to continually top it up to avoid explosion.

Another potential recipe is the distillation of the space cleaner in a vacuum under heat.
This would be a much simpler recipe= space cleaner + stabilizing agent + heat ~50-60C + Time in a closed beaker = separating the space cleaner into water and a minimal amount of HTP over some time. 
This is much less dangerous without the presence of smoke powder or sulphuric acid, but it makes a bit more sense.

One property that should be present in HTP is that if left in a sealed container, the build-up of oxygen gas will eventually also cause a  BOOM! This forces a chemist who is synthesising it to constantly be working to move the HTP out of the distillation or desiccation process mix as both methods would eventually explode with a sealed lid.

For more on H2O2 see these vids:
Explosions and Fire Hydrogen Peroxide
Improper Footwear with High Test Peroxide (essentially real life Phlogiston!)

Back to Piranha Solution:

The major reaction upon applying the solution to organic matter (flesh, clothes, anything made of carbon) should be after a cycle or two, the release of water vapor, CO2 and Hydrogen gas, the intense heat generated by the reaction, and finally the conversion of all organic matter into carbon liquid, bones and all. As the solution is used up, it is replaced with the liquid carbon from the organic source until there is nothing left but carbon and sulphur (the sulphuric acid reducing back into it's elemental form).

When mixed incorrectly, depending on the concentration of H2O2, there would be a small 1x1 to 3x3 explosion that would additionally spray the solution as a liquid around, best you or your friends aren't around when this happens!

On TOUCH I would imagine quite a bit of BURN damage, on higher concentration it may even melt arms and legs (or skin!), causing BRUTE damage.
On INGEST I would imagine similar or worse BURN damage with the addition of melting your organs like your stomach which would then need to be replaced. (not sure why you would drink this but to each their own).
Bathing in it would result in a total liquification of your body after some time, but you will probably be dead from BURN damage before this happens.

With these properties I realise it can be absolutely over powered, but I believe the danger in mixing the solution, and the time spent concentrating the H2O2 to High-Test Peroxide makes up for it. 

Why should this be added?
- It gives chemistry a fun new (unstable!) chemical that has various uses for destructive, cleaning, or monkey liquifying purposes. It could arguably be the "final tier" acid, that requires a bit more nuance to get the mix right or it will blow up in your face (along with your face).
- To the trained traitor chemist, (that doesn't let the mix blow up in their face) a perfect compound to reduce a corpse to a messy, but untraceable puddle of carbon. Or a potential deadly mix for a chembomb!
- It's a very cool and well known chemical experiment that fits with the aesthetic of SS13.

EDIT: upon further inspection, it is in fact NOT an acid, but an oxidizer, which in chemistry means it interacts with electrons differently... main take away is that it's the reason why it causes a violent exothermic reaction.
---


Let me know what you think everyone!

here's some youtube vids to show the power of piranha solution:

Mythbusters breaking bad bathtub myth

Periodic videos banana in solution

Nilered making piranha solution
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#2
Do I think the idea of something called piranha solution would be cool in goonstation? Absolutely
Do I think one element of the creation of it should involve some weird link to angling because funny? You know it.
Do I at the very least think that you should be able to fish Piranha solution for Piranha? Yes.

Am I capable of commenting on whether we need another powerful acid in the general chemistry library and one that would be reasonably powerful? I have no idea sorry.

Summary: That sounds cool but I honestly don't know either way if it's actually a good idea to add it or not.
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#3
(12-26-2024, 03:10 AM)Lefinch Wrote: Do I think the idea of something called piranha solution would be cool in goonstation? Absolutely
Do I think one element of the creation of it should involve some weird link to angling because funny? You know it.
Do I at the very least think that you should be able to fish Piranha solution for Piranha? Yes.

Am I capable of commenting on whether we need another powerful acid in the general chemistry library and one that would be reasonably powerful? I have no idea sorry.

Summary: That sounds cool but I honestly don't know either way if it's actually a good idea to add it or not.

I love the idea of fishing being involved, maybe fish oil should be part of the recipe
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#4
i don't think it needs a massively complicated reaction series. but i do think it is an interesting, well known, and spooky enough chemical to be an acid with genuinely special effects.

idea: it could be poured on the floor, and standing in it when it's sufficiently concentrated will apply a sizzling DoT that steadily escalates in damage.
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#5
To be honest, acids are in a very bad place anyway, huge splashes being very effective while small continuous application (like... taking a fucking bath in it) doing jackshit. I would rather revisit the acids we have already and make them appropriately effective than adding just stronger variants on top of an already shaky foundation.
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#6
(12-27-2024, 03:43 AM)Lord_earthfire Wrote: To be honest, acids are in a very bad place anyway, huge splashes being very effective while small continuous application (like... taking a fucking bath in it) doing jackshit. I would rather revisit the acids we have already and make them appropriately effective than adding just stronger variants on top of an already shaky foundation.

I would agree, however the current acids while effective in melting clothes and faces, will simply not dissolve organics to any extent like piranha solution does IRL, even if you take a bath in the acids. This is due to the difference between acids, and oxidizers. Where oxidizers instead of slowly decomposing the substance, will remove atoms from the molecules into their base form in a FAST violent reaction, this due to the presence of the oxidizer H2O2, which when in an acidic environment (sulfuric acid) concentrates it.

Having a bath in the strong acids available (Sulfuric, Hydrochloric, Flurosulfuric, and Aqua tenebrae) I agree should cause BURN DoT if lying in it, but don't (as to why I'm going to assume coding and cycles of liquid), but I believe they still do when moving around in it as each movement counts as a TOUCH. 

But apart from this inaccuracy, I'm having trouble as to what you mean by "very bad place", "appropriately effective", or "shaky foundation". All current acids have various levels of burn damage associated, and while sulfuric and hydrochloric share the same behavior, all have unique uses and synthesis properties that set them apart. I could be wrong, but they all seem to act in essentially the way that they would do IRL. Please elaborate and let me know what you mean.

The only change I could see making is to change hydrochloric acid to have these differing properties from sulfuric:
Corrosion: Hydrochloric acid is more corrosive than sulfuric acid, meaning more BURN damage.
Dilution: Diluting hydrochloric acid doesn't produce as much heat as diluting sulfuric acid, and therefore should not heat in the same way or at all.
Concentration: Hydrochloric acid can be used at higher concentrations than sulfuric acid, and therefore shouldn't cause the beaker to shatter or smoke until a much higher heat.
Fuming: Hydrochloric acid fumes, creating noxious corrosive odors, more BURN and TOX damage when aerosolised or ingested.
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