Chemical Composition of Cements
A suitable material for the student to operate on is the well known brand —Portland Cement. As the student has already examined in detail a silicate, the following notes are given somewhat briefly. A good cement should consist chiefly of SiO2 and CaO, with a little Al2O3 and Fe2O3, and less than 2% MgO, and […]
Iron & Steel Composition
Such matter is presented in this chapter as will give the student some insight into the methods of analysis used in the technical examination of iron and steel. The nature of this work prevents a detailed treatment of the subject—a treatment which may demand an estimation of any one or more of the following substances:—Carbon […]
Copper & Lead Slag Analysis
For technical purposes it is rarely necessary to determine all the constituents present in a slag. The lead or copper smelter wishes to know the lead or copper contents of his slags; also their silver and gold contents (if any), and, as a rule, the silica, ferrous oxide, and lime present. Certain other constituents, such […]