Oxalic Acid [C2H2O4] 99.8% ACS Grade Powder 8 Oz in a Space-Saver Bottle USA $14.80 B00WS9OL8I
Printed Circuit Board Etchant [PCB] Dry Powder 10 Oz in a Space-Saver Bottle USA $19.86 B00WSBAODM
Nickel Sulfate [NiSO4] 99.9% ACS Grade Crystals 8 Oz in a Space-Saver Bottle USA $24.80 B00WUDS14M
Thiourea [SC(NH2)2] 99.9% ACS Grade Crystals 6 Oz in a Space-Saver Bottle USA $21.73 B00WUEKI92
Printed Circuit Board Etchant [PCB] Dry Powder 1 Lb in Two Space-Saver Bottles USA $31.08 B014IU057A