What is the difference between anhydrous and fused calcium chloride?

Answer 1

Anhydrous calcium chloride is the anhydrous, or water-free, form of calcium chloride, typically in the solid state. Fused calcium chloride, on the other hand, is the result of heating and melting anhydrous calcium chloride to form a fused liquid. Fused calcium chloride is often used in industrial applications where a liquid form is required, while anhydrous calcium chloride is more commonly used in laboratory and chemical processes.

Answer 2

In theory no difference- both are CaCl2. However in practise fused is sold with a higher moisture content (usually). Fused CaCl2 is just the hydrate heated up to expel water - this gives the "anhydrous" form. in practise as this so deliquiscent- it takes up moisture readily. So if you analyse it you invariably find water!

Answer 3

Anhydrous calcium chloride is the dry form of calcium chloride without any water content, while fused calcium chloride is a solid form of calcium chloride produced by melting and solidifying the compound. Fused calcium chloride typically contains some water molecules trapped within its structure.