Encara no tenim significats per a "double sulphate".
1In preparing the double sulphate, English grain nickel is decidedly the best form of metal to use.
2The compound used principally for the electro-deposition of nickel is a double sulphate of nickel and ammonia.
3Nickel is found to deposit best from a solution of the double sulphate of nickel and ammonia.
4ALUM, in chemistry, a term given to the crystallized double sulphates of the typical formula M2SO4.M2111.
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