The strongly-refractory material, about 6 cm. thick, which forms the cylinder consists of about 10 cm. calcined magnesite. The upper portion is filled in with a mixture of 90 parts calcined magnesite and 10 parts good kaolin. The clay to beanbsp;...
|Title||:||Introduction to Chemical-technical Analysis (authorized Translation); with Appendix by the Translator H. Fleck ...|
|Author||:||Ferdinand Ulzer, Alexander Fraenkel|