6 VITREOUS ENAMEUNG 



Recovery and utilization of enamel wastes. Rev. chim. ind., 19, 160; C. A., 

 2, 2718. 



Staley, H. F. The compounding of frits. Trans. Amer. Ceram. Soc., 10, 

 113-23 (1908); C. A., 2, 3392. 



Vollkommer, Joseph. Furnaces for the enameling industry. Iron Age, 82, 

 648-9 (1908); C. A., 2, 2981. 



Vondracek, R. Enameling of iron. Sprechsaal, 41, 475-7, 493-5, 507-8 

 (1908); J. Soc. Chem. Ind., 27, 1020. 



Woog, P., and Delage, M. Process of enameling in one stage. French 

 Patent 401,543, July 29, 1908. J. Soc. Chem. Ind., 28, 1130. An acetyl- 

 ene flame is directed onto the spot where the enamel is required and the 

 finely ground enamel is also projected on the same spot. 



1909 



Bock, B. Fixation materials in enamel making. Chem.-Ztg., 33, 109 (1909) ; 

 C. A. t 3, 1450. Fixation materials are those substances which have the 

 effect of holding the fine enamel glass particles in suspension, thus pre- 

 venting their settling to the bottom of the mass after fusion. These 

 include clay; insoluble magnesium salts; soluble, neutral salts, such as 

 ammonium chloride (volatile), alkali carbonates and sulfates (partly 

 volatile), and borax (non- volatile). 



Colin, G., et Cie. Process of enameling cast iron articles and especially 

 pots and cooking utensils. French Patent 411,630, Apr. 14, 1909. 

 J. Soc. Chem. Ind., 29, 951. The interior of the pots is polished and then 

 oxidized into a layer of magnetic oxide of iron, to which the enamel is 

 applied by the wet process and as liquid as possible. 



Enequist, Erik. The chemistry of opaque glass and enamel. Chem. Eng. t 

 10,54; C. A., 3,2865. 



Fletcher, D. Enameling muffles. English Patent 25,692, Nov. 8, 1909. 

 J. Soc. Chem. Ind., 29, 1383. 



Frink, R. L. The chemistry of opaque glass and enamel. Chem. Eng., 10, 

 128-9 (1909). A criticism of the work of Enequist. 



Grunwald, Julius. Annealing and pickling of the finished iron articles 

 before enameling. Stahl u. Eisen, 29, 137-40 (1909); C. A., 3, 878; 

 /. Soc. Chem. Ind., 28, 204. 



Grunwald, Julius. Cast iron enamels. Stahl u. Eisen, 1909, 137; Sprechsaal, 

 43, 485-7 (1910); C. A., 5, 168. 



Grunwald, Julius. Enameling and the function of clay in the enamel. 

 Sprechsaal, 42, 287-9 (1909); C. A., 3, 1674; /. Soc. Chem. Ind., 28, 

 600. A general discussion. 



Grunwald, Julius. Note on the technology of the enameling industry. 

 Oesterr. Chem. Ztg., 1 1, 271 ; C. A ., 3, 2364. The density of certain enamels 

 is given, with and without water. Certain analytical methods are also 

 given. 



Hartmann, A. Zircon enamel. Z. anorg. Chem., 1909, 178-227; Keram. 

 Rundschau, 19, 118-28 (1911); C. A., 5, 1981. 



