The issue of additives in cathode copper

Thiourea, also known as thiourea, has a molecular weight of 76.12 and a melting point of 180–182°C; it decomposes at higher temperatures. Sublimes at 150~160°C under vacuum. Soluble in water, readily soluble in hot water; dissolves in ethanol when heated, almost insoluble in ether. It hygroscopically absorbs moisture from the air and is flammable. It has low toxicity but is corrosive to the skin. The decomposition temperature of bean gum is probably around 310 degrees. The dissolution temperature of bone glue is between 65 and 75 degrees; above 100 degrees, molecular decomposition begins, leading to aging of the substance. A slightly higher amount of thiourea should be fine; the original poster didn’t specify a exact quantity. If I add too much, I can only draw out a portion of the electrolyte and replace it with fresh liquid in order to balance the amount of thiourea in the system.

Thiourea and soy gum are organic solvents; if they need to be removed, they can be oxidized using hydrogen peroxide, which allows for their removal without introducing any other impurities.

Hydrogen peroxide? ? ? How much should be added? 3# Mountain Breeze

What is the reason why the copper plates become brittle and cannot be peeled off? ~? ? ~? ~?

Thiourea and gelatin are used together. For dissolution, our company uses high-pressure steam; thereafter, the mixture is added to a storage tank in an even manner. If there is an excess amount, additional water is added to dilute it, or the amount used in the second cycle can be reduced accordingly. The chlorine content should also be increased appropriately. What is the reason behind the copper plates becoming brittle and unable to be peeled off? ~？ There are many influencing factors. Without specific details, it’s impossible to conduct an analysis.

The copper plate is brittle. Moreover, one side of it is smooth while the other side has particles on it; even the smooth side is quite brittle``

How to determine the amount of additive in the cathode plate 12 hours after being placed in the tank

The issues raised by the original poster are all core technologies held by various manufacturers; without hiring experts to address them specifically, trying to figure things out on one’s own will take a long time and incur significant costs (this is true only if one already has a cathode furnace), making it very difficult to find solutions to these problems!

It usually relies on experience. First, check the color; second, listen to the sound when it is tapped