Ferric chloride is the best corrosion materials for circuit board. This product is yellowish-brown crystals or crystalline block, easy to melt in the air. Ferric chloride etching solution deployment: 500g of ferric chloride and deployment 3000cc-4000cc of water, with hot water can speed up the etching speed.
High-purity ferric chloride is the best corrosion chemicals for circuit board PCB.
500 grams bottled solid.