Explanatory notes
… lead oxide or massicot, in the form of a pale yellow powder, and then, when the temperature passes the blood‑red … heat point, the fused oxide, in orange‑yellow or reddish powder or scales. The term “litharge” covers both these … from unmelted lead monoxide (massicot). A toxic, orange‑red powder (specific gravity 8 to 9). The term orange lead is …