"Sulphide" Quotes from Famous Books
... of a black oxide. The proper reagent will restore the original color—partially and at least for a time. Ah—yes—it is as I thought. There have been erasures in these checks. Other names have been written in on some of them in place of those that were originally there. The sulphide of ammonia ought to bring out anything that ... — Constance Dunlap • Arthur B. Reeve
... with only one. Cause and effect are not two separate things, they are the same thing viewed under two different aspects. When, for example, I ask for the cause of gunpowder and am told that it is sulphur, charcoal, and nitre, or for a cause of sulphuric acid and am given sulphide of iron and oxygen, it is clear that considered separately these ingredients are not causes at all. Whether charcoal and sulphur will become part of the cause of gunpowder or not will depend upon ... — Theism or Atheism - The Great Alternative • Chapman Cohen
... magnetising other substances by friction, without they themselves suffering any loss; but it is not all substances that will respond to the magnet. For instance, common iron pyrites, FeS{2}, is unresponsive, whilst the magnetic pyrites, which varies from 5FeS, Fe{2}S{3}, to 6FeS, Fe{2}S{3}, and is a sulphide of iron, is responsive both positively and negatively. Bismuth and antimony also are inactive, whilst almost all minerals containing even a small percentage of iron will deflect the magnetic needle, at least under the influence of heat. So that from the lodestone—the most powerfully magnetic mineral ... — The Chemistry, Properties and Tests of Precious Stones • John Mastin |