aurumrocks
New member
- Joined
- Feb 16, 2012
- Messages
- 2
I have a couple of hundred grams of sterling I want to refine and another 17 ounces coming my way. I am shopping for nitric acid and was confused as to what would be the best buy for nitric acid. There are several different concentrations, grades, prices and container sizes.
I read Goldsilverpro's post on calculating concentrations of nitric acid after dilution. It was that post that made me think of an easy way to get the best price for nitric acid.
To calculate the best deal I used the specific gravity of nitric acid at 20 degrees C. I am looking for some peer review at your earliest convenience.
I did the calculations as follows:
67% concentration
acs grade
1 quart (946.352946 mL)
$100
1.4004 kg/L
$100 / 1.4004kg/L * .67 * .946352946 L = $112.62/ kg of nitric acid
70% concentration
clean room grade
3 pints (1.41952942 L)
$119.99
1.4134 kg/L
$119.99 / 1.4134kg/L * .7 * 1.41952942 L = $85.44/ kg of nitric acid
61.4% concentration
did not give grade, did say it was for gold extraction
8.5 L
$212
1.3739 kg/L
$212 / 1.3739 kg/L * .614 * 8.5 L = $29.57/kg of nitric acid
Since I will be diluting the nitric for silver refining, it looks like the $29.57/kg would be the best deal.
Is my thinking correct?
Steve
I read Goldsilverpro's post on calculating concentrations of nitric acid after dilution. It was that post that made me think of an easy way to get the best price for nitric acid.
To calculate the best deal I used the specific gravity of nitric acid at 20 degrees C. I am looking for some peer review at your earliest convenience.
I did the calculations as follows:
67% concentration
acs grade
1 quart (946.352946 mL)
$100
1.4004 kg/L
$100 / 1.4004kg/L * .67 * .946352946 L = $112.62/ kg of nitric acid
70% concentration
clean room grade
3 pints (1.41952942 L)
$119.99
1.4134 kg/L
$119.99 / 1.4134kg/L * .7 * 1.41952942 L = $85.44/ kg of nitric acid
61.4% concentration
did not give grade, did say it was for gold extraction
8.5 L
$212
1.3739 kg/L
$212 / 1.3739 kg/L * .614 * 8.5 L = $29.57/kg of nitric acid
Since I will be diluting the nitric for silver refining, it looks like the $29.57/kg would be the best deal.
Is my thinking correct?
Steve