• ⚠️ UK Access Block Notice: Beginning July 1, 2025, this site will no longer be accessible from the United Kingdom. This is a voluntary decision made by the site's administrators. We were not forced or ordered to implement this block.

supergold#2

supergold#2

sapphic, suicidal, and stupid
Oct 20, 2024
85
if you, like me, have been seeing quite the uptick in posts about "H2S" or "hydrogen sulfide", and you maybe even may have considered it a viable option; well i'm here to hopefully provide you with some information (that you're probs not gonna find on pubchem) that might make your bus ride more successful than mine!
first, though, a little about me: i've been a member on and off for like 6 years, i enjoy playing guitar, i am, like, ridiculously mentally ill, and for some reason i just can't seem to die lmao
that being said, i recently tried to ctb with hydrogen sulfide, and here are the things i've learned:

1. unless you have access to decent lab equipment, there's next to no way to calculate when your concoction with reach the LD50 (insufflation, 1 second exposure) dose of 800+ppm (also some reports claim survivability up to 1400ppm, idk)
2. close proximity to H2S causes near immediate noseblindness (and rEaLlY fun burns), which is a MAJOR issure, because H2S becomes orally detectable in the immediate vicinity at preperations as low as 0001ppm; you NEED to be isolated for this to work properly
3. unfortunately, SI most deffinitely is still a factor in this method. While if "perfect" scenarios, you'd pass out immediately, that "perfect" scenario is highly unrealistic (again, unless you have access to a lab), according to most pubmed articles i've read, it usually takes anywhere from 5 seconds to 5 minutes to pass away
4. you might be thinking, "oh that's not THAT long"; it is. i'm not the religious type, but lemme just say, i COMPLETELY understand why Dante described purgatory with sulfur lmao. immediately after inhaling, you will feel ever hair, fiber, and muscle tissue literally burn from your body. H2S is extremely flammable when exposed to oxidizing agents, water, and most metals, which sounds fine until you consider that your lungs provide ALL 3 combustion risks (veinouse gasses fulfill the oxidizers, the iron in your blood, and just water, which you're 72% made of). YOU WILL FEEL IT.
5. after experiencing how it feels to be a creme brulee, unfortunately, you are most likely still alive. if you're like me, you'll be coughing hard enough to black out for a few seconds at a time here and there. it is very important that you CANNOT escape the situation if you're looking for success. i unfortunately can't tell you how long you'll have to tough it, but it most likely will feel like too long. i imagine opiates designed for nerve pain may help in this scenario, maybe tramadol, codeine, or ODSMT?
6. hopefully. you're not me, and you're not at this point: the lasting damage. if you do fail (which, for your sake, i hope you don't), you should be prepared for several casualties, most notably lungs/trachea/asophegus; it's been over a week since my attempt and i still am unable to speak outside of faint whispers (which do actually require quite a bit of effort), and unfortunately no doctors have been able to to even guarantee that my voice will eventually return.
7. teeth. my teeth are HORRIFIC, but, like, inhaling the gasses, i could literally feel the acid burn holes right through them, like, genuinely probably faster than a dentists drill; it's SO fucked
8. the only good part: if you survive all this, you get a nice lil trippy halucinations. i imagine it's kinda what it'd feel like to do ketamine, as a vietkong in the mountians south of ho chi minh city, anytime in the late 60's; kinda cool, but also stupidly fucked up painful

idk how to end this so: the end.
 
  • Hugs
  • Like
Reactions: Forever Sleep and Carrot
H

heyismeman

Specialist
Jan 29, 2025
305
What did you mix and at what quantities?
 
  • Like
Reactions: Carrot
supergold#2

supergold#2

sapphic, suicidal, and stupid
Oct 20, 2024
85
reposted from my status:

as for the mix, it was draino (29%) sulfuric acid, aqueous calcium bicarbonate (to "excite" the mix/increase evaporation rate), and toilet cleanser containing HCL 15%. I mixed 4 parts sulfuric acid with 1 part hcl, then, once settled, i poured the calcium carbonate/water solution (from a high distance, to increase surface area contact) into the H2S reagent solution. I built a "gas chamber" for myself using a PVC mixing bowl, and several garbage bags/duct tape to insulate the chamber; waited about 1 hour (which was calculated using data on reactivity and evaporative rates from pubmed and pubchem) after preparing my mixture and entered the chamber,
it went bad.
spent 2ish weeks in the psych ward, and had the fire department kick down my door bc apparently i didin't dispose of it properly, and they though it was a gas leak lmao
 
  • Like
Reactions: Carrot
H

heyismeman

Specialist
Jan 29, 2025
305
reposted from my status:

as for the mix, it was draino (29%) sulfuric acid, aqueous calcium bicarbonate (to "excite" the mix/increase evaporation rate), and toilet cleanser containing HCL 15%. I mixed 4 parts sulfuric acid with 1 part hcl, then, once settled, i poured the calcium carbonate/water solution (from a high distance, to increase surface area contact) into the H2S reagent solution. I built a "gas chamber" for myself using a PVC mixing bowl, and several garbage bags/duct tape to insulate the chamber; waited about 1 hour (which was calculated using data on reactivity and evaporative rates from pubmed and pubchem) after preparing my mixture and entered the chamber,
it went bad.
spent 2ish weeks in the psych ward, and had the fire department kick down my door bc apparently i didin't dispose of it properly, and they though it was a gas leak lmao
This reaction produces a small about of chloride gas and co2 with the bicarbonate you did not produce h2s at all from this reaction my friend
You basically get a mixture of two acids:

Hydronium ions (H⁺/H₃O⁺)

Chloride ions (Cl⁻)

Sulfate/bisulfate ions (HSO₄⁻, SO₄²⁻)


There is no chemical reaction between the two acids in water.

The mix just becomes a more strongly acidic solution.



---

2. Case: Concentrated sulfuric acid + concentrated HCl

When you pour concentrated H₂SO₄ into concentrated HCl, the situation changes:

(a) H₂SO₄ is more "dehydrating"

Sulfuric acid has a much stronger affinity for water than HCl.

It can strip water from HCl, and concentrated heat can drive off HCl gas (white fumes).


This is the same principle used in labs to generate HCl gas.


---

(b) Heat generation

Mixing concentrated acids is strongly exothermic.

If added too quickly, it can cause boiling, splattering, and release of acid fumes.



---

3. What does not happen

No H₂S is formed. Neither H₂SO₄ nor HCl contain sulfide (S²⁻).

No new chemical compound like "HCl + H₂SO₄" forms in solution; they remain separate species.



---

4. Effect on other reactions

If you use this acid mixture with a carbonate or bicarbonate, you get CO₂ (bubbling
 
Last edited:
supergold#2

supergold#2

sapphic, suicidal, and stupid
Oct 20, 2024
85

multiple sources here state otherwise
plain water increases the evaporation rate of sulfuric acid into hydrogen sulfide, which is further potentiated by the water source being in an unstable state of suspended gas, which increases surface area and therefore evaporative rate when acted upon (and possibly may have lowered the flash point to some degree, once exposed to the c02 from the tums water)

i respect the hell out of your chemistry degree, like genuinely, but i do think you're incorrect in this scenario
 
H

heyismeman

Specialist
Jan 29, 2025
305

multiple sources here state otherwise
plain water increases the evaporation rate of sulfuric acid into hydrogen sulfide, which is further potentiated by the water source being in an unstable state of suspended gas, which increases surface area and therefore evaporative rate when acted upon (and possibly may have lowered the flash point to some degree, once exposed to the c02 from the tums water)

i respect the hell out of your chemistry degree, like genuinely, but i do think you're incorrect in this scenario
I am truly truly telling you the truth here bro. Sulfuric acid does NOT produce h2s when in contact with hcl. This is not something that is arguable.
This down here is sulfuric acid.
H₂SO₄
It is Proton H and sulfate/bisulfate ions
This chemically speaking with 100% certainty CANNOT produce h2s gas. You need sulfide S2- to create hydrogen SULFIDE. I'm not trying to be arrogant or anything like but you can truly be sure that absolutely you did not produce even one molecule of hydrogen sulfide. It's like saying "you can cook an egg with an apple". The link you send is a massive page that I couldn't get a feel for what you are saying.

This is actually good news for you man because likely you didn't even produce any chloride gas with those concentrations but you did make co2

multiple sources here state otherwise
plain water increases the evaporation rate of sulfuric acid into hydrogen sulfide, which is further potentiated by the water source being in an unstable state of suspended gas, which increases surface area and therefore evaporative rate when acted upon (and possibly may have lowered the flash point to some degree, once exposed to the c02 from the tums water)

i respect the hell out of your chemistry degree, like genuinely, but i do think you're incorrect in this scenario
This means you likely cause very very little damage to your body or any at all assuming the reaction didn't react to make some chloride gas.
 
supergold#2

supergold#2

sapphic, suicidal, and stupid
Oct 20, 2024
85
Update: i'm a big ol' dumb idiot lmao
did a bunch of digging and spent, like, a STUPIDLY long time just trying to learn how to use the calculators on chemicalaid lmao
you're defs right that it probably wasn't H2S being produced, though i'm still not convinced it was simply just CO2.
i know it's defs a reach (from what i understand IS *technically* possible), but given the "rotten egg aroma" that apparantly saturated my entire house, the chemical burns in my lungs/throat, and a whole lot of unwaranted confidence, i think i possibly may have made (some of the shittiest) chlorosulfonic acid in some small amount?
i know it's usually produced with gaseous sulfur trioxide and HCI, though am i reaching to far to think that the sulfuric acid oxidized before the HCI (i didn't mix them at all lmao), given that it had time to condensate/precipitate back into the solution from inside the sealed plastic bag?
idk, i might be talking out of my ass, but hey, i did my whole, like, 4 hours of research, <s>ooobbbbviously I'm an expert now</s>
edit: meant to add that i posted the wrong pubchem link lmao, meant to link to
in which it talks about rapid oxidization producing various sulfic oxides (including trioxide, despite being, like, really rare), even from "depleted"/other low chemical content sources; what if i just got really [un]lucky?

EDIT: EDIT: totes letting this get to my head after seeing a DEA controlled chemical watchlist entry on chlorsulfonic acid; might have to start writing a manifesto about the flaws of industrialization now lol
 
Last edited:
pthnrdnojvsc

pthnrdnojvsc

Extreme Pain is much worse than people know
Aug 12, 2019
3,569
did you make those bags taped to stand up like a tent ?

how did you make your gas chamber?
 

Similar threads

H
Replies
19
Views
874
Suicide Discussion
nobodycaresaboutme
nobodycaresaboutme
AnimeSlayersFan
Replies
13
Views
276
Recovery
AnimeSlayersFan
AnimeSlayersFan