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Etchant #047, 32oz (E407-047-32-00) - ASTM E-407 Etchants by Metallurgical Supplies
SOLUTION ETCHANT #047
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
5 g NaCN or KCN
5 g (NH4)2S2O2
100 mL Water
Use a certified and tested hood—Can give off extremely poisonous hydrogen cyanide.
Precaution—Also poisonous by ingestion as well as skin contact.
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