Baking soda + citric acid in a bag

[jane78flower]

Hey for making co2 in bag with baking soda & citric acid can anyone tell me how much of each I would need. I am gonna put them in a tupperware & close it & allow it to react or should i use smth else - i dont have ziplock. Anything I should know? How long should it take to pass out? What r the risks? If I pass out can I wake up like will the reaction still be going? How much discomfort should I feel or should it be relatively instant pass out w a high concentration in a small space. Tysm
@Intoxicated I hope you see this lol, you are like the master of chemistry. Are u a chemist?

 

[Darkover]

you need to make 30,000 co2 parts per million for it to be lethal
for a room with width 2 meters height 2 meters and length 2 meters
To raise CO₂ to 30,000 ppm in an width 2 meters height 2 meters and length 2 meters
room, you'd need to mix approximately:

640 grams of citric acid

840 grams of baking soda

With enough water to dissolve and react (about 1–2 liters is usually sufficient for this scale)

 

[jane78flower]

you need to make 30,000 co2 parts per million for it to be lethal
for a room with width 2 meters height 2 meters and length 2 meters
To raise CO₂ to 30,000 ppm in an width 2 meters height 2 meters and length 2 meters
room, you'd need to mix approximately:

640 grams of citric acid

840 grams of baking soda

With enough water to dissolve and react (about 1–2 liters is usually sufficient for this scale)

Thank u I appreciate that however I am trying to do this with my head in a bag. What would those amounts be?

 

[Darkover]

Let's say the black bag is a typical large trash bag, around:

Width: 0.6 m

Height: 1 m

Depth (if puffed out): ~0.3 m

Approximate volume:
V=0.6×1×0.3=0.18 m³=180liters

To reach 30,000 ppm CO₂:

~14.4 g citric acid

~18.9 g baking soda

A bit of water (50–100 mL) to dissolve and initiate the reaction

This will produce about 5.4 liters of CO₂, raising the bag's concentration to ~30,000 ppm.

 

[jane78flower]

Thank you! I pmed you. <3

 

[Darkover]

Thank you! I pmed you. <3

just use chatgpt to ask how you need of each ingredient and whats required to reach 30,000 ppm

 

[jane78flower]

just use chatgpt to ask how you need of each ingredient and whats required to reach 30,000 ppm

Thank you, I am sorry just want to be cautious… thank you for your knowledge

 

[Darkover]

Thank you, I am sorry just want to be cautious… thank you for your knowledge

just be careful co2 (carbon dioxide) poisoning cause suffocating panic

 

[jane78flower]

just be careful co2 (carbon dioxide) poisoning cause suffocating panic

is there no way to avoid it? I am aware ofc that it causes panic but if the concentration is high enough can't it knock u out? Or was I misinformed

is there no way to avoid it? I am aware ofc that it causes panic but if the concentration is high enough can't it knock u out? Or was I misinformed

just be careful co2 (carbon dioxide) poisoning cause suffocating panic

Also kind of confused abt the water to be honest. Im sorry

 

[Darkover]

is there no way to avoid it? I am aware ofc that it causes panic but if the concentration is high enough can't it knock u out?

Here's a general idea of CO₂ concentration effects:

• 400–1,000 ppm: Normal atmospheric levels (safe).
• 1,000–2,000 ppm: Mild drowsiness, stale air.
• 2,000–5,000 ppm: Headaches, sleepiness, stale air, poor concentration.
• 5,000 ppm: OSHA 8-hour workplace exposure limit.
• 10,000 ppm (1%): Shortness of breath, increased heart rate.
• 30,000 ppm (3%): Very noticeable symptoms — dizziness, nausea, reduced cognitive ability.
• 50,000 ppm (5%): Loss of consciousness may occur in minutes.
• >80,000 ppm (8%+): Rapid unconsciousness, risk of death from respiratory failure.

So yes — CO₂ can render someone unconscious if it builds up to around 5% or more of the air you're breathing. This is especially dangerous in enclosed or poorly ventilated spaces, where CO₂ from sources like dry ice, fermentation, or chemical reactions can accumulate.

 

[jane78flower]

Here's a general idea of CO₂ concentration effects:

• 400–1,000 ppm: Normal atmospheric levels (safe).
• 1,000–2,000 ppm: Mild drowsiness, stale air.
• 2,000–5,000 ppm: Headaches, sleepiness, stale air, poor concentration.
• 5,000 ppm: OSHA 8-hour workplace exposure limit.
• 10,000 ppm (1%): Shortness of breath, increased heart rate.
• 30,000 ppm (3%): Very noticeable symptoms — dizziness, nausea, reduced cognitive ability.
• 50,000 ppm (5%): Loss of consciousness may occur in minutes.
• >80,000 ppm (8%+): Rapid unconsciousness, risk of death from respiratory failure.

So yes — CO₂ can render someone unconscious if it builds up to around 5% or more of the air you're breathing. This is especially dangerous in enclosed or poorly ventilated spaces, where CO₂ from sources like dry ice, fermentation, or chemical reactions can accumulate.

Thank you its helpful. So is there no way to get it to 80,000 then? Wouldnt it be instant? Tysm.

 

[Darkover]

Also kind of confused abt the water to be honest. Im sorry

(50–100 mL) water use a measuring jug to measurer out 50 to 100 milliliters

Thank you its helpful. So is there no way to get it to 80,000 then? Wouldnt it be instant? Tysm.

i don't know what time frame your looking at to be full unconscious
yes you can get 80,000ppm just ask chat gpt how much of each ingredient is need within a given space or room size to reach 80,000 ppm co2

 

[hankly]

just use chatgpt to ask how you need of each ingredient and whats required to reach 30,000 ppm

Oh my god

 

[ladylazarus4]

just use chatgpt to ask how you need of each ingredient and whats required to reach 30,000 ppm

These calculations are really very easy. More accurate to just do by hand.

Also would strongly recommend against CO2. It would be the opposite of a peaceful death. There are better ways to go that are equally accessible.

 

[jane78flower]

These calculations are really very easy. More accurate to just do by hand.

Also would strongly recommend against CO2. It would be the opposite of a peaceful death. There are better ways to go that are equally accessible.

I don't have many options available to me…

 

[Darkover]

These calculations are really very easy. More accurate to just do by hand.

please show me how you can do these calculations with a calculator
what the correct formula is expressed as an equation

 

[Intoxicated]

Hey for making co2 in bag with baking soda & citric acid can anyone tell me how much of each I would need.

100 g of baking soda + 200 g of citric acid should be enough for producing effective concentration of CO2 inside a 20 L or smaller bag quickly. Alternatively, it's possible to use a soda siphon with 8g CO2 chargers to inflate the bag - this would be an easier way actually.

I am gonna put them in a tupperware & close it & allow it to react or should i use smth else - i dont have ziplock.

I'd rather carry out the reaction in a plastic bottle with a plastic bag attached to the bottle's neck. Once the bag is inflated enough, it can be placed over the head and sealed around the neck with a PVC electrical tape or something like that while holding breath. When sealing is done, you resume breathing and just wait for LOC, trying not to rip off the bag.

How long should it take to pass out?

Within half a minute. Maybe a bit more if you're unlucky.

What r the risks?

A failed attempt may result in complications with lungs, brain, heart, and possibly other organs.

If I pass out can I wake up like will the reaction still be going?

In a sealed environment, you'll be exposed to CO2 all the time. At high concentrations, this gas induces narcosis, even when it's mixed with a lot of oxygen, such as 30% CO2 + 70% O2. Waking up from such a narcosis without stopping yourself to be exposed to critical levels of CO2 further is very unlikely. Besides, CO2 produces respiratory arrest, which may occur in 1 - 1.5 minutes according to some sources. After cessation of breathing, the concentration of CO2 around your head won't matter much.

How much discomfort should I feel or should it be relatively instant pass out w a high concentration in a small space.

I recommend to read https://i.sanctioned-suicide.net/images/2025/03/224148_NIOSH_-_CO2.pdf starting from page 25 (Effects on Humans).

you need to make 30,000 co2 parts per million for it to be lethal

30000 ppm is just a STEL (Short-Term Exposure Limit) value

Carbon dioxide - IDLH | NIOSH | CDC

The revised IDLH for carbon dioxide is 40,000 ppm based on acute inhalation toxicity data in humans

www.cdc.gov

Short-Term Exposure Limit (STEL) refers to the acceptable concentration of a hazardous substance in workplace air for a short period, typically 15 minutes. This limit is designed to prevent acute health effects that might arise from short-term exposure to high levels of a toxic substance. STEL is especially relevant for substances that can cause immediate health effects, such as irritation, dizziness, or respiratory issues, after a brief exposure.

It would take eternity to lose consciousness and die from this concentration of CO2, compared to plain plastic bag suffocation that could render LOC within 10 - 15 minutes. The whole point of CTB via acute CO2 poisoning is that this gas can produce unconsciousness in half a minute, which is a relatively short time, making the method worthwhile for those people who don't mind to perceive some possibly severe discomfort as long as its duration is short and death is almost certain. To gain this efficiency, you need to add one more "0" in 30000.