Dilute A/R.

[glondor]

Would a solution of 3 liters of water with 50 ml nitric and 250 ml HCL be effective as an A/R solution? 50 ml nitric is enough for the AU but the volume of the part requires 3 liters to cover. Thanks.

 

[eeTHr]

Can you cut it into smaller pieces?

 

[Tauran]

while you will still have active aqua regia the volume will cause the retion to occur very slowly. the acid molecules need to come into contact with the metal thus a higher volume will take longer.

it's also a tossup between the rate of decomposition of the AR and how much AR actuallycomes into contct with your part.

i'm not an expert this is just from my experience

 

[Palladium]

Think off it this way. An acid contains a certain amount of bound up energy, which is what does the work. Just because you spread that energy out doesn't mean that energy doesn't still exist. You didn't destroy it or change it's state of existence. It means that energy just has to travel a greater distance to get to its job site. so yes it will work but it will just take longer. The more you dilute it the greater the distance. Distance = time. If you want the reaction to go faster then you have to speed up the ions so they reach their destination quicker. How can you do that? Heat!

 

[glondor]

OK thanks guys.