Hydrogen sulfide seems like the best method.

[heyismeman]

The only issue is the danger to others and I don't want to understate that, that's a BIG deal. BUT hydrogen sulfide in a car of all the easy to do methods seems like the most solid. You can very easily produce 30000+ ppm and if 2000ppm really does knock you out in 1 breath, then that should mean one wiff and you're bye bye. Compared to something like hanging etc this feels like the most humane way. Even with nitrogen you're conscious for 30 seconds plus. Anyone else kinda agree here? I know that the first breath will burn but besides that.... not bad

 

[heyismeman]

Bumpeeee

 

[Intoxicated]

In terms of reliability, H2S poisoning is one of the best methods.

I guess, in terms of comfort, it's comparable to orally administered pentobarbital which has disgusting bitter taste. There are more comfortable methods though, this is my subjective estimation:

opioids ≥ N2O > headshot ≥ inert gas ≈ CO > odorized propane/butane ≥ pentobarbital orally ≈ H2S ≥ H2S + HCl

 

[heyismeman]

In terms of reliability, H2S poisoning is one of the best methods.

I guess, in terms of comfort, it's comparable to orally administered pentobarbital which has disgusting bitter taste. There are more comfortable methods though, this is my subjective estimation:

opioids ≥ N2O > headshot ≥ inert gas ≈ CO > odorized propane/butane ≥ pentobarbital orally ≈ H2S ≥ H2S + HCl

Interesting list. You say it's comparable to pentobarb but you rank CO/headshot butane etc as more comfortable. But why would that be the case? Besides tasting bad it should work as a benzo and calms all anxiety before you falling to sleep. I can't imagine those things being more comfortable.

 

[zardoz]

You can very easily produce 30000+ ppm

(Forgive my ignorance of this method)

How do you produce it?
How do you test/know the concentration is strong enough, like this 30000 ppm?

 

[nobodycaresaboutme]

I don't know how painless it is. But I think it is not difficult to find goods for this method.
In Japan, notorious bath preparation named "610 HAP" used to be sold in drug stores. Most of those CTBed in hydrogen sulfide method combined it with bathroom detergents containing hydrochloric acid. Finally "610 HAP" was discontined because the seller went broke.
But the bath preparation was simple colloidal solution of chemical compound and it seems we can diy it.

• Water 729.73 g
• Sulfur 202.5 g
• Calcium oxide 67.5 g
• Casein 0.12 g
• Potassium sulfide 0.15 g

And also lime sulfur can substitute for this coloidal solution.

see also (Japanese)

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Edit: omg see also link text broken...

 

[Intoxicated]

Besides tasting bad it should work as a benzo and calms all anxiety before you falling to sleep.

I think, I'd rather be curious (about the sensations) than anxious during the CTB process. If H2S-induced unconsciousness were safe to test, I'd likely performed such a test to find out how it works out of curiosity, despite preferring a different method of CTB in the end.

 

[GodChallengesMe]

I survived the accidental H2S exposure. I was getting poisoned for days till I found out there was something wrong in the home. I got really sick and the symptoms I felt were no joke. They started to become more dramatic after I left the home and moved to my relatives. I was sick for almost a full month. Each and every day I was anticipating death because of disruption of normal cellular metabolism and central apnea it induced. I couldn't fall asleep without my breathing stopping completely and waking up in panic and gasping for air.

The cascade of symptoms caused irreversible consequences like disruption of normal cellular metabolism and electrolyte imbalances. Since then I feel terrible, the whites of my eyes got dark gray / bluish, my bones started to brake, I got osteoarthritis of hands and shoulders and visible bone thinning which is either caused by bone cell death or is the result of mineral imbalances caused by disrupted metabolism of ions. I tested positive for elevated PTH levels and this means that my organs responsible for mineral homeostasis are screwed completely.

Might as well died instead of surviving this crap. Now I see no option other than to CTB with either CO or H2S itself (but this gas is terrible and not peaceful so I would advice against this method to anyone unless you are okay to endure horrible effects it causes before you get knocked out).

I have tried CO method after I got poisoned by H2S and there's no comparison in terms of peacefulness at all. With CO, you get this sweet numbness feeling that makes you relaxed and euphoric while you're drifting off into unconsciousness whilst with H2S, you get your mucous membranes burned and terrible effects in lungs that causes you to gasp for air and get panicked as hell. Unless you make it so that it causes immediate unconsciousness I wouldn't risk with H2S at all.

 

[zardoz]

I wouldn't know how to go about making CO or H2S, or how to channel that into a CTB method.

Are these methods covered/documented anywhere?
(edit: CO can be made using the charcoal burning method, yes? how about H2S?)

 

[Intoxicated]

I survived the accidental H2S exposure. I was getting poisoned for days till I found out there was something wrong in the home. I got really sick and the symptoms I felt were no joke.

Acute H2S poisoning should work entirely differently than long exposure to relatively small concentrations of this gas. Time before LOC matters a lot. Even nitrogen asphyxiation may produce remarkably bad symptoms like headache or vomiting if too much oxygen is present and unconsciousness is delayed.

 

[pthnrdnojvsc]

chatgpt:
Approximately 5,107 ppm of H₂S would be produced in a 560 mL sealed chamber by mixing:

0.1 mL of 19.5% calcium polysulfide

• 0.1 mL of 9.5% HCl

holy shit the calculation of chatgpt is almost exactly what they tested the liquids with 19.5% and 9.5% hcl from the internet they got 4950 ppm. that's almost exactly the same 5,017 pm and 4950 ppm .so that seems to show chatgpt calculations are very accurate .

[Suicidal poisoning due to hydrogen sulfide produced by mixing a liquid bath essence containing sulfur and a toilet bowl cleaner containing hydrochloric acid] - PubMed

A 21-year-old man was found dead in a car. There were 9 empty bottles of 610HAP (a 440 g bottle of a liquid bath essence containing 160-195 g/kg sulfur) and 10 of Sunpole (a 500 mL bottle of a toilet bowl cleaner containing 9.5% HCl) in the car. The car doors were sealed with tape, and there was...

pubmed.ncbi.nlm.nih.gov

In terms of reliability, H2S poisoning is one of the best methods.

I guess, in terms of comfort, it's comparable to orally administered pentobarbital which has disgusting bitter taste. There are more comfortable methods though, this is my subjective estimation:

opioids ≥ N2O > headshot ≥ inert gas ≈ CO > odorized propane/butane ≥ pentobarbital orally ≈ H2S ≥ H2S + HCl

comfort : headshot if hit head with powerful ammunition (don't hear shot no pain) ≥opioids ≥ ≥ pentobarbital

if can acquire , best method is oral Nembutal Pentobarbital because opiods don't know the purity and shotgun rifle scary and can flinch before shot. however if you practice a lot not flinching then the rifle shotgun method becomes much much more reliable .

opiods least reliable because you don't know what if anything you are getting , don't know oral LD100 even if sure it's pure etc. , tolerance etc. injecting is too difficult and don't know what you are injecting .

 

[Intoxicated]

opiods least reliable because you don't know what if anything you are getting , don't know oral LD100 even if sure it's pure etc. , tolerance etc. injecting is too difficult and don't know what you are injecting .

That's why I choose the next option in my list - nitrous. It's easily and legally purchasable where I live. No troubles with law, no troubles with purity. It would be awesome to spend the last minutes of my life like this