“Germany's chief natural resources are iron ore, bituminous coal and lignite, potash, timber, lignite, natural gas, salt, and nickel.”

“The leachate was collected and then chemically converted to true saltpeter, potassium nitrate, by mixing it with a solution of potash.”

“It could also be treated by rubbing salt, brain or potash alum into the surface to produce a very pale leather.”

“If a diuretic is used, potassium concentrations should be kept as close as possible to normal.”

“The insoluble potassium perchlorate was removed by centrifugation at 500 g for 3 min.”

“We have found aldosterone antagonists especially helpful in patients with persistent hypokalemia despite potassium replacement.”