Explosive Dust of Sulfur, Charcoal, Saltpeter
This page is the CodyCross answer for the clue below from Forms of Communication, Group 2234, Puzzle 1 (World Wide Web).
Question
Explosive Dust of Sulfur, Charcoal, Saltpeter
Answer
GUNPOWDER
Word Meaning:
GUNPOWDER — An explosive mixture of saltpetre (potassium nitrate), charcoal and sulfur; formerly used in gunnery but now mostly used in fireworks.
Definitions from Wiktionary.