Project:Deactivating a ferric chloride solution: Difference between revisions
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Project:Deactivating a ferric chloride solution (view source)
Revision as of 20:53, 28 May 2010
, 28 May 2010→In practice
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A solution that was made with a packet of Ferric Chloride (FeCl3) crystals weighing 300 grams requires 222 grams of Sodium Hydroxide (NaOH) to be deactivated. | A solution that was made with a packet of Ferric Chloride (FeCl3) crystals weighing 300 grams requires 222 grams of Sodium Hydroxide (NaOH) to be deactivated. | ||
After deactivating, the neutralised solution will contain Fe(OH)3 | After deactivating, the neutralised solution will contain Iron Hydroxide (Fe(OH)3) which is rust and NaCl which is common table salt. | ||
Both are innocuous and can be poured down the drain. | Both are innocuous and can be poured down the drain. | ||
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discarded. | discarded. | ||
If not discarded, on standing, the Iron Hydroxide will separate out at the bottom, while at the top, a crust of | If not discarded, on standing, the Iron Hydroxide will separate out at the bottom, while at the top, a crust of Copper Carbonate (CuCO3) will form due to the copper from etched circuits. | ||
The | The Iron Hydroxide at the bottom is a standard commercial pigment and can be separated off the solution and added to latex paint. | ||
[[File:Deactivated_FeCl3_Solution.jpg|200px]] | [[File:Deactivated_FeCl3_Solution.jpg|200px]] | ||
