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Copper-Oxide and Zinc Cell in Caustic Soda: 10 Hours at over an Ampere (Boy Mechanic, 1913)
A strong, steady wet cell for experiments: black copper oxide with a little manganese oxide and iron filings in a tin can at the bottom of a jar, a zinc hung above it, and 10 per cent caustic soda under a film of oil; it gives over an ampere for about 10 hours.
Kati
An hour
Maagizo
1
1
Recipe in metric
Recipe in metric
Inapakia daftari la Jupyter…
2
2
Read the Boy Mechanic
Read the Boy Mechanic
"A cell of battery that will run 10 hours with an output of over 1 ampere can be made as follows."
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3
Bottom electrode
Bottom electrode
Solder a connecting wire to the lower half of a tin can and set it in the bottom of a jar about 4 in across and 8 in high. Fill the can with 2 oz black copper oxide, 1 oz black manganese oxide and some iron filings.
Vifaa kwa hatua hii:
Chupa ya Kioo1 kipande
Kopo la bati1 kipande
Waya wa Shaba1 kipande
Lehemu ya bati na risasi1 kipande
Oksidi ya shaba1 kipande
Dioksidi ya manganizi (pairolusiti)1 kipande
Vinyoo vya chuma1 kipandeZana zinazohitajika:
Chuma cha kulehemia4
4
Zinc
Zinc
Hang a small zinc (he used a crowfoot zinc) about 1 in above the half can, its wire led out of the jar.
Vifaa kwa hatua hii:
Bati la zinki1 kipandeWaya wa Shaba1 kipande5
5
Electrolyte
Electrolyte
Wearing goggles and gloves, fill the jar to within 1 in of the top with 10 per cent caustic soda solution, then float a thin layer of kerosene or paraffin oil on top to keep out the air.
Vifaa kwa hatua hii:
Hidroksidi ya sodiamu, myeyusho wa asilimia 101 kipande
Kerosini1 kipandeZana zinazohitajika:
Miwani ya kinga dhidi ya kemikali
Glavu zinazostahimili kemikali6
6
Renew
Renew
When exhausted, siphon off the oil first, then renew the solution and the oxide.
Vifaa kwa hatua hii:
Hidroksidi ya sodiamu, myeyusho wa asilimia 101 kipandeOksidi ya shaba1 kipandeZana zinazohitajika:
Mrija wa kuhamishia kimiminika7
7
Troubleshooting
Troubleshooting
Cell troubleshooting.
Flow
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8
8
History and honest limits
History and honest limits
From **The Boy Mechanic, Book 1** (Popular Mechanics, 1913), pp. 150-151, by Robert Canfield (checked on the archive.org scan boymechanic0000unse_n5a8). Metric figures, the Lalande-type note and safety gear are ours.
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