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Etchant #021, 32oz (E407-021-32-00) - ASTM E-407 Etchants by Metallurgical Supplies
SOLUTION ETCHANT #021
Etchant Solution following the standards of ASTM E-407. With the solution, a COA is provided and the COA's of all the chemicals used to make the solution.
ALL SOLUTIONS ARE MADE THE SAME DAY OF SHIPPING
1 g CrO3
140 mL HCl
Use a certified and tested hood.
To mix, add the HCl to CrO3.
Electrolytic at 3 V for 2–10 s.
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