"SLEUTHING OUT Contamination" mentioned the difference in perchlorate samples (C&EN, Sept. 1, page 49). Readers may be interested in a brief history of synthetic perchlorate. Before World War II, the ...

A commercial port near Shanghai recently welcomed two Iranian vessels tasked with picking up over 1,000 tons of sodium perchlorate – a key precursor for the production of solid fuel ballistic missiles ...

Iran’s efforts to replenish its ballistic missile arsenal have intensified, with critical support from China, according to European intelligence sources. Between late September and mid-October , ...