"With sulfur, you sell at 17 yuan to 18 yuan per ... China has been plagued for decades by food scandals — such as contaminated milk powder and gutter oil being reused in restaurants — that ...

The iron filings are attracted to the magnet, but the sand is not. A mixture of iron filings and sulfur powder could be separated in exactly the same way. A beaker containing a mixture of ...

Previously, scientists synthesized tungsten pentaboride WB 5-x, refined the method for synthesizing superhard tungsten boride powder ... to poisoning from sulfur-containing compounds.