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  • Make Ferric Chloride (for etching printed circuit boards)

    Hi all, I made a small batch of this and things went perfectly. Thanks NerdRage! Something to think about is that this recipe 'Makes' a dilute solution. 3% hydrogen peroxide and 50/50 water/hydrochloric acid adds a lot of water into the mix. There should be a way to make a much more concentrated solution.Using 10% hydrogen peroxide would reduce the amount of water in the solution by about 15% or better yet, use the bubbling method described. Eliminating the 50/50 mix of hydrochloric acid/water and using straight hydrochloric acid would further reduce the dilution by another 25%. I am no Chemist, but I feel like one after this exercise, so please don't try these suggestions without careful consideration. The reactions will be much more energetic and controls will need to be in place for ...see more »Hi all, I made a small batch of this and things went perfectly. Thanks NerdRage! Something to think about is that this recipe 'Makes' a dilute solution. 3% hydrogen peroxide and 50/50 water/hydrochloric acid adds a lot of water into the mix. There should be a way to make a much more concentrated solution.Using 10% hydrogen peroxide would reduce the amount of water in the solution by about 15% or better yet, use the bubbling method described. Eliminating the 50/50 mix of hydrochloric acid/water and using straight hydrochloric acid would further reduce the dilution by another 25%. I am no Chemist, but I feel like one after this exercise, so please don't try these suggestions without careful consideration. The reactions will be much more energetic and controls will need to be in place for safety; (Ice bath, slow additions, etc...)Started out etching circuit boards and got sidetracked with this endeavorThanks NerdRage :/

    Hi all, I made a small batch of this and things went perfectly. Thanks NerdRage! Something to think about is that this recipe 'Makes' a dilute solution. 3% hydrogen peroxide and 50/50 water/hydrochloric acid adds a lot of water into the mix. There should be a way to make a much more concentrated solution.Using 10% hydrogen peroxide would reduce the amount of water in the solution by about 15% or better yet, use the bubbling method described. Eliminating the 50/50 mix of hydrochloric acid/water and using straight hydrochloric acid would further reduce the dilution by another 25%. I am no Chemist, but I feel like one after this exercise, so please don't try these suggestions without careful consideration. The reactions will be much more energetic and controls will need to be in place for ...see more »Hi all, I made a small batch of this and things went perfectly. Thanks NerdRage! Something to think about is that this recipe 'Makes' a dilute solution. 3% hydrogen peroxide and 50/50 water/hydrochloric acid adds a lot of water into the mix. There should be a way to make a much more concentrated solution.Using 10% hydrogen peroxide would reduce the amount of water in the solution by about 15% or better yet, use the bubbling method described. Eliminating the 50/50 mix of hydrochloric acid/water and using straight hydrochloric acid would further reduce the dilution by another 25%. I am no Chemist, but I feel like one after this exercise, so please don't try these suggestions without careful consideration. The reactions will be much more energetic and controls will need to be in place for safety; (Ice bath, slow additions, etc...)Started out etching circuit boards and got sidetracked with this endeavorThanks NerdRage :/ energetic and controls will need to be put in place.

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