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Projects by members => Projects by members => Electrojolt => Topic started by: electrojolt on April 18, 2010, 23:25:23 pm

Title: Electrolysis using tungsten rods and KOH
Post by: Login to see usernames on April 18, 2010, 23:25:23 pm
I just tested performing electrolysis using 2 tungsten rods and koh mix.

reaction starts at about 1.2 volts

only the negative rod shows gas,

nothing at all on the positive rod, even when I raise the voltage to 8 volts.

why no gas (oxygen) on the positive rod?
Title: Re: Electrolysis using tungsten rods and KOH
Post by: Login to see usernames on April 18, 2010, 23:29:58 pm
I just tested performing electrolysis using 2 tungsten rods and koh mix.

reaction starts at about 1.2 volts

only the negative rod shows gas,

nothing at all on the positive rod, even when I raise the voltage to 8 volts.

why no gas (oxygen) on the positive rod?

Probably a chemical reaction which will form a coating , just like with the aluminium tube we tried last year?


Steve

Title: Re: Electrolysis using tungsten rods and KOH
Post by: Login to see usernames on April 18, 2010, 23:32:33 pm
I'm glad you mentioned that.. maybe this water i'm using was some leftover from last year's tests and is contaminated with ALU.

will test again with a clean mix.
Title: Re: Electrolysis using tungsten rods and KOH
Post by: Login to see usernames on April 19, 2010, 18:09:54 pm
yes there was some aluminum dissolved in the solution. that is why only hydrogen was being generated.