Last one I swear. Hydrogen sulfide

[jane78flower]

I'm sorry I am just trying to figure it out. Any experts/chemists. on the Hydrogen Sulfide method pls help me. If there is any question you can answer pls feel free.

1. What are products I can use in USA? How much of each one is way over safe?
2. How far away can you smell this? I think I have a safe spot but need to be sure.
3. How long will it take for them to react? I am under the impression I pour them outside of the tent then place them inside & then how long should I wait before I go in?
4. How long should it take to work? How long do I have safe to not be found & revived?
5. Anything else I need to be aware of/any tips.

I know I'll need a bucket, eyewear, gloves, something to cover my nose and mouth til the concentration builds, the 2 items to mix, an enclosed space, duct tape to seal the tent…
Also what are the risks of this method. I know hurting others is a big thing to be cautious abt

 

[Intoxicated]

2. How far away can you smell this? I think I have a safe spot but need to be sure.

H2S is a very smelly gas, so if you produce it in large amounts, its odor may be perceived from a large distance like 50 - 100 meters or even more (I know, many US people hate the metric system, but for me it's easier to understand than measurements in feet). I can tell this based on my experience of smelling H2S that came from open wells.

The characteristic "rotten egg" odour of hydrogen sulfide is well known. The threshold of perception of this odour varies considerably depending on individual sensitivity, but, under laboratory conditions, it ranges from 0.0008 to 0.20 mg/m3 (0.0005-0.13 ppm).

Source: https://iris.who.int/bitstream/handle/10665/37261/9241540796-eng.pdf (page 7)

0.0005 ppm is just 0.5 parts per billion. If you produce 10 liters of H2S and dissipate it evenly in a volume of 100 m x 100 m x 100 m (10⁶ m³ or 10⁹ liters), you'll get 10 parts per billion that may be enough for perceiving by some people.

3. How long will it take for them to react? I am under the impression I pour them outside of the tent then place them inside & then how long should I wait before I go in?

I guess, that depends on the initial temperature of the reactants. If they're cold, the reaction may go slowly (at least initially). If their temperature is 20 °C or above, 5 - 10 minutes should suffice for making effective concentration, assuming that the reagents were taken in right quantities.

4. How long should it take to work? How long do I have safe to not be found & revived?

Usually acute intoxication occurs from a single, massive exposure to 2,000 ppm (2,781 mg/m³) or more, and unconsciousness occurs within a few seconds, without significant warning or pain. Unconsciousness, termed "knock-down" by workers, is almost immediately followed by respiratory paralysis, and after that by a short period of tonic convulsions (Yant, 1930). The heart continues to beat for several minutes. Death occurs unless the victim is removed from the contaminated area and artificial ventilation is immediately initiated.

Source: https://i.sanctioned-suicide.net/images/2024/11/213513_EPA_-_H2S.pdf (page 8-24)

This old video (at timestamp 4:38) suggests that after 10 minutes since cessation of breathing the chance for recovery becomes very low

View attachment H2S.mp4

 

[wham311]

I'm sorry I am just trying to figure it out. Any experts/chemists. on the Hydrogen Sulfide method pls help me. If there is any question you can answer pls feel free.

1. What are products I can use in USA? How much of each one is way over safe?
2. How far away can you smell this? I think I have a safe spot but need to be sure.
3. How long will it take for them to react? I am under the impression I pour them outside of the tent then place them inside & then how long should I wait before I go in?
4. How long should it take to work? How long do I have safe to not be found & revived?
5. Anything else I need to be aware of/any tips.

I know I'll need a bucket, eyewear, gloves, something to cover my nose and mouth til the concentration builds, the 2 items to mix, an enclosed space, duct tape to seal the tent…
Also what are the risks of this method. I know hurting others is a big thing to be cautious abt

I could be wrong but I do not think the items are readily available for sale anymore and it requires cooking other products down and is sort of a process.

There are YouTube videos on how to create it

 

[EmptyBottle]

This old video (at timestamp 4:38) suggests that after 10 minutes since cessation of breathing the chance for recovery becomes very low

View attachment 170379

Interesting video and rat demo, glad they successfully brought the rat back to life.
Somehow on firefox I had to download the video and open it with ffplay (the simplest video player I know)