Dear HF users,
I have been told by a microwave digestion apparatus manufacturer that digestion involving HF may be conveniently replaced by NH4F + HNO3.
According to him, NH4F is much safer than HF (doesn't go through the skin !) and when heated in presence of acid, it generates HF in the closed vessel, ensuring safe digestion of siliceous compounds
Does anybody have experience with it ?
Is it as efficient as HF ?
Philippe De Raeve
Quality Assistance SA
Technoparc de thudinie,1