Some people get skin irritations from nickel in 10 karat gold, why would 18 karat gold be easier for them?

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And how is the activity series of metals / metal reactivity related to all this?

2007-05-27 04:46:18 · 4 answers · asked by Arielle 1 in Science & Mathematics ➔ Chemistry

In the case of 10 karat yellow gold, the silicon level may be no greater. By Jacob

2007-05-31 04:51:47 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Because gold is less reactive than Nickel

Au(s) >> Au 3+ + 3e- EÂ° = -1.52

Ni(s) >> Ni2+ + 2e- EÂ° = + 0.257

2007-05-27 04:52:36 · answer #2 · answered by Non più attiva su answers 7 · 0⤊ 1⤋

Less copper and nickel and more gold. So, less galvanic activity.

2007-05-27 04:49:14 · answer #3 · answered by Swamy 7 · 1⤊ 0⤋

less nickle in 18k gold, more gold.

2007-05-27 04:50:14 · answer #4 · answered by DK Julie 5 · 1⤊ 0⤋