Use lead-free solder, 0.2 percent lead or less.
Lead free means NO Lead
your better off with a silver bearing alloy as it has a longer pasty range or 95% tin 5% antimoney
Actually the term "solder" means lead bearing according to the AWS specifications
Any alloy - for example: solder.
A synthetic resin adhesive that will stay solid, not melt.
Copper is a metal & solid
Copper Sulphate is a blue crystalline solid.
Suppose the loading capacity of your resin is 1.1mmole/g and your calculation is based on 0.1mmole scale of resin, then 1/1.1*0.1=90.9mg of resin.
Only non acidic core and non resin core solder may be used. 2mm to 4mm solid solder is recommended.
Solder is not a true solid because solder is a liquid but during the art of solding it changes into a solid.
Does epoxy resin use for countertop of kitchen as a solid surface if no why?
Any alloy - for example: solder.
filtration
A synthetic resin adhesive that will stay solid, not melt.
Copper is a metal & solid
Solid copper reacts with solid sulfur to form Copper(I) sulfide. 2Cu(s)+S(s) -> Cu2S(s)
Copper Sulphate is a blue crystalline solid.
Copper sulfate in the solid form are crystals
Copper Sulphate is a powder at room temperature, therefore it is a solid.
Suppose the loading capacity of your resin is 1.1mmole/g and your calculation is based on 0.1mmole scale of resin, then 1/1.1*0.1=90.9mg of resin.