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Science

hunter

(39,496 posts)

6. For those who would rather read...

Reply to sl8 (Original post)

Sat May 17, 2025, 09:57 AM

Yesterday

Zinc metal reacts with dilute sulfuric acid to produce hydrogen gas. When a valve is opened, a jet of hydrogen is released onto a platinum sponge. The sponge catalyzes a reaction with atmospheric oxygen, which heats the catalyst and ignites the hydrogen, producing a gentle flame.

https://en.wikipedia.org/wiki/D%C3%B6bereiner%27s_lamp

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2 members have recommended this reply (displayed in chronological order):

sl8 Yellowdog-1966

8 replies

= new reply since forum marked as read

Highlight:

This 200-Year-Old Lighter Ignites Without a Spark [View all] sl8 Yesterday OP

Thanks for this! Going to share it with my husband and son! HeartsCanHope Yesterday #1

De nada. Glad you liked it. nt sl8 Yesterday #2

That's not so hard to build. I like gadgets that are too large of a solution to a small problem. And this is primo ... marble falls Yesterday #3

Cool, cool, cool. Here's the "making of" video: sl8 Yesterday #4

No real difficulty here, the sulphuric is not anything to play with, but otherwise it's pretty simple ... marble falls Yesterday #5

For those who would rather read... hunter Yesterday #6

Thanks. sl8 Yesterday #7

Makes Sense ProfessorGAC Yesterday #8