In order to make manganese dioxide electrodes, you're going to need cobalt nitrate and manganese nitrate to do it. Making cobalt nitrate is fairly easy, but making the manganese nitrate is a little more complicated. But not impossible.
Watch this science video tutorial from Nurd Rage on how to make cobalt and manganese nitrates with Dr. Lithium.
WARNING: These are heavy metals and toxic if mishandled. In addition cobalt is carcinogenic. You MUST wear gloves and preferably additional safety equipment like dust masks and lab coat. A fumehood is recommended too.
Making cobalt nitrate is very easy, just get cobalt carbonate from a pottery supply store and mix it with twice its mass in water. Then add nitric acid until it stops fizzing. That's all! The red solution can be dried to make cobalt nitrate crystals for storage.
Making manganese nitrate is a little more complicated. Manganese dioxide is mixed with oxalic acid, water and nitric acid to produce manganese nitrate. Alternatively you can bubble nitrogen dioxide directly into the manganese dioxide. If the solution is yellow it's because there is some iron contamination. But this is not a problem for making manganese dioxide electrodes.
Brought to you by one of WonderHowTo's favorite scientists, NurdRage.
Just updated your iPhone? You'll find new emoji, enhanced security, podcast transcripts, Apple Cash virtual numbers, and other useful features. There are even new additions hidden within Safari. Find out what's new and changed on your iPhone with the iOS 17.4 update.
3 Comments
i have used your method but its can't reacted
what i have a mistake
please give me advise
thanks
WHEN IS THE SCIENTIFIC COMMUNITY GOING TO CHANGE THE THEORY OF EVOLUTION INTO THE "FACT" OF EVOLUTION ALONG WITH THE THEORY OF "GRAVITY". WE HAVE KNOWN FOR DECADES THAT BOTH OF THESE ARE "PROVABLE" FACTS... SO WHATS THE DEAL??? I AM SICK AND TIRED OF CREATIONIST "FREAKS" TELLING ME EVOLUTION IS JUST A "THEORY" WHEN I KNOW ITS BEEN A FACT FOR MANY DECADES... LOOK AT THE RECENT DISCOVERY OF THE CHIMPANZEE GENOME AND THE TWO EXTRA CROMOSOMES THAT JUST SO HAPPEN TO HAVE CONVERGE EXACTLY WHERE SCIENTIST PREDICICTED IT WOULD BE ON THE HUMAN GENOME, EXPLAINING WHY WE HAVE 26 PAIRS AND CHIPS HAVE 28 PAIRS OF CROMOSOMES.... IT MATCHED PERFECTLY, NO CREATIONIST COULD EVER EXPLAIN THIS, CONTEST IT, MUCH LESS UNDERSTAND IT, AND HOW IT CAME ABOUT.
Practical post ! I Appreciate the facts . Does someone know if my company can acquire a blank a form form to work with ?
Share Your Thoughts