Fused quartz tubing for pharmaceutical packaging and method for producing fused quartz tubing

摘要

A method of forming a high purity silica article. High purity silica articles may be particularly suitable for forming packages, such as packages for pharmaceutical applications. In one embodiment, a method for forming a high purity silica article includes: (a) forming a fused quartz melt from a SiO2 feedstock, (b) forming a quartz tube from the fused quartz melt, (c) a quartz tube. Treating the quartz tube with an acid composition, (d) treating the quartz tube after the treatment with the acid composition, and (e) optionally treating the quartz article with the acid composition after the heat treatment operation. Can do. By the said method, the purity of a silica glass article and the product produced from it can be raised.