ToddB64
Elite Member
To: Arthur Evans (and others)
Arthur's Profile says "Science Guy", so I directed this post to him, however, other's having knowledge of chemical reactions with metals I encourage to add their advice.
I have a batch of dug coins of the following metallurgical descriptions that I want to clean with my Chicago Electric no.67632 Dual-Drum Tumbler, using the ingredients listed below, before cashing at the Bank.
My question is at the bottom.
Thanks,
ToddB64
Coin Descriptions:
1998 D Jefferson Nickels (Composition: 1946 to date 75% Cu and 25% Ni, according to Red Book 2013, page 135.). I interpret this description as an Alloy (homogeneous mixture of metals, versus clad coins).
1990 D and 2002 D Roosevelt Dimes (Composition: outer layers of Cu and Ni, bonded to inner core of pure Cu, Red Book 2013, page 161.)
1989 D Washington Quarters (Composition Same as Dimes: outer layers of Cu and Ni, bonded to inner core of pure Cu, Red Book 2013, page 178.)
Question:
Is it safe for these coins, from the standpoint of chemical reactions with their metallic compositions, to clean them all together in my Chicago Electric Dual-Drum Tumbler, each drum filled to approx. 2½ lb. total weight with the following ingredients ?
Cleaning Ingredients:
1. about 1 cup (unequal mix of coins described above).
2. natural color quartz aquarium gravel to bring total weight up to approx. 2½ lb./Drum.
3. one tablespoon Borax (20 Mule Team).
4. 1-2 drops Dawn Ultra Platinum liquid dish soap.
5. 1-2 tsp. ACE no. 10183 Janitorial Strength Formula ammonia,
contains 10% ammonium hydroxide, no phosphates, no rinse performance.
6. Tap water, just enough to cover coin/gravel mix.
Arthur's Profile says "Science Guy", so I directed this post to him, however, other's having knowledge of chemical reactions with metals I encourage to add their advice.
I have a batch of dug coins of the following metallurgical descriptions that I want to clean with my Chicago Electric no.67632 Dual-Drum Tumbler, using the ingredients listed below, before cashing at the Bank.
My question is at the bottom.
Thanks,
ToddB64
Coin Descriptions:
1998 D Jefferson Nickels (Composition: 1946 to date 75% Cu and 25% Ni, according to Red Book 2013, page 135.). I interpret this description as an Alloy (homogeneous mixture of metals, versus clad coins).
1990 D and 2002 D Roosevelt Dimes (Composition: outer layers of Cu and Ni, bonded to inner core of pure Cu, Red Book 2013, page 161.)
1989 D Washington Quarters (Composition Same as Dimes: outer layers of Cu and Ni, bonded to inner core of pure Cu, Red Book 2013, page 178.)
Question:
Is it safe for these coins, from the standpoint of chemical reactions with their metallic compositions, to clean them all together in my Chicago Electric Dual-Drum Tumbler, each drum filled to approx. 2½ lb. total weight with the following ingredients ?
Cleaning Ingredients:
1. about 1 cup (unequal mix of coins described above).
2. natural color quartz aquarium gravel to bring total weight up to approx. 2½ lb./Drum.
3. one tablespoon Borax (20 Mule Team).
4. 1-2 drops Dawn Ultra Platinum liquid dish soap.
5. 1-2 tsp. ACE no. 10183 Janitorial Strength Formula ammonia,
contains 10% ammonium hydroxide, no phosphates, no rinse performance.
6. Tap water, just enough to cover coin/gravel mix.
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