10ml 9ct Gold Tester Spot On Testing Solution

⚠ WARNING : All precious metal tests are acid based therefore proceed with caution - it may cause discolouration/damage when in contact with clothing, skin etc. It may also permanently stain tested item depending on its chemical composition therefore it's strongly recommended to use it on the concealed/hidden area.

It can be used as a spot on test - just place a drop of the solution on tested item and observe the reaction. Its colour will change accordingly as listed below.

9ct gold testing fluid will react as follows:

- solution froths and turn turquoise/green when it reacts with copper, brass or other base metal,

- solution stains surface slightly when in contact with 9ct gold,

- solution doesn't react with metal at all if purity of tested alloy is 14ct or higher.