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ProfessorGAC

(77,182 posts)

17. Too Dilute

Reply to RockRaven (Reply #14)

Sun Apr 5, 2026, 01:46 PM

Apr 5

The concentration of peroxide that causes the rapid O2 release you describe is at industrial strength like 35, 50, or 70.
There's too much dilution with drug store peroxide. Too much water means far inferior mass transfer rate, making the reaction too slow to explode.
The rest of your cautionary statements are well-placed.

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MacGyver moment - today. Peroxide, dish soap, vinegar, and Ajax [View all] underpants Apr 5 OP

How fun. 😦😦 good thing you didn't breathe it in. Srkdqltr Apr 5 #1

Yeah there were some fumes when I opened it up on the floor underpants Apr 5 #5

You forgot dweller Apr 5 #2

No rubber band either underpants Apr 5 #8

You wear the rubber band dweller Apr 5 #12

😃😃😃 underpants Apr 5 #16

Whatever you do, don't add bleach. The fumes will kill you. Lochloosa Apr 5 #3

Yes luckily I left that out. And baking soda (which I had in the counter/lab) underpants Apr 5 #7

I edited my post with a PDF. Bleach should never be mixed. Lochloosa Apr 5 #9

I saw that. Thanks. underpants Apr 5 #10

I think Ajax contains bleach. Mixing bleach and peroxide is outright dangerous. Wicked Blue Apr 5 #4

My daughter, so you were making a bomb? underpants Apr 5 #6

Wow! Sounds amazing! Faux pas Apr 5 #11

With a paper towel. The peroxide I think was the key. underpants Apr 5 #13

Yeah peroxide is my most Faux pas Apr 5 #22

Rule of thumb: don't mix common cleaning liquids. They often make bad things when combined. RockRaven Apr 5 #14

Too Dilute ProfessorGAC Apr 5 #17

Thank you for the correction. RockRaven Apr 5 #18

43 Years As A Chemist Forned Hard Habits To Beeak. ProfessorGAC Apr 5 #19

Vinegar? ProfessorGAC Apr 5 #15

I repeat " my complete lack of scientific knowledge " underpants Apr 5 #20

Ok ProfessorGAC Apr 5 #24

totally agree Kali Apr 5 #28

Looks like it would taste nasty Shellback Squid Apr 5 #21

Try borax next time. On something like a floor, apply a little paste of borax and hot water, then let stand. eppur_se_muova Apr 5 #23

Ooh underpants Apr 5 #27

LOL! 2naSalit Apr 5 #25

MacGyver OC375 Apr 5 #26

for blood, always start with plain old cold water Kali Apr 5 #29

Home brewed chemistry lab, Sounds like fun! OAITW r.2.0 Apr 5 #30