… Sulphur, sublimed or precipitated; colloidal sulphur. …
Explanatory notes
… 28.02 ‑ Sulphur, sublimed or precipitated; colloidal sulphur. (A) SUBLIMED OR PRECIPITATED SULPHUR The sulphur in these two categories is usually about 99.5 % pure. Sublimed sulphur , or flowers of sulphur , is obtained by slow distillation of crude or impure sulphur, followed by …