Firstly, it is an astringent, meaning it causes the skin to contract or shrink ... that manufacturers make by fusing potassium alum with potassium nitrate. Styptic pencils are anti-hemorrhagic ...

Photograph Caption: Early results of a USGA-funded research project at Rutgers University strongly suggest that a weekly application of potassium nitrate during the growing season reduces anthracnose ...

Potassium nitrate (KNO 3), known historically as saltpeter or the mineral niter, is a common salt with multiple uses. It has been known since antiquity; an early appearance in the chemical literature ...