None
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(2) 109, 475. 826. 1871, Wun'der, Zirconia isomor- phous with tin and titanium oxides. J. prakt. Chem. (2) 110, 211. 827. 1911, Wunder and Jeanneret, Separation from iron and aluminum. Z. anal. Chem. 50, 732. 828. 1911, Wunder and Jeanneret, Ac- tion of phosphoric acid on zir- conium. Compt. rend. 162, 1770. 829. 1917, Yensen, Pure alloys: Data on purity of zirconium. Trans. Amer. Electrochem. Soc. 32, 174. 830. 1907, Zerning, Use in making in- candescent lamp filaments. Brit. Pat. 20,233; /. Soc. Chem. Ind. 27, 1197. 831. 1875, Zirkel, Occurrence of zir- con. Jahrb. Min. 1876, 628. SUBJECT INDEX Acetates, 110, 111. basic zirconyl acetates, 111. normal acetate hydrolysis, 111. normal zirconium acetate, 111. zirconyl acetate, 111. Acetylacetonate, 115. Adelfolith, 20. Adsorption compounds, 32. Alvite, 20, 21. Amide, 46, 47. Analytical methods, 120, 125. qualitative, 120, 121. quantitative, 121, 122. separations, 123. 124, 125. Anderbergite, 20, 21. Antimonate, pyroantimonate, 93, 94. Applications, technical, 125-132. abrasives, 132. alloys, 128-129. chlorinating agent, 132. clouding agent, 130. colloidal uses, 131. combustion tubes, 130. crucibles, 130. electrodes, 129. enamels, 130. filaments, 127. furnace lining, 129, 130. gas mantles, 127. glass, 131. insulating materials, 129. jewels, 126. medicinal, 131. mordanting, 131. oxy-hydrogen light, 126, 127. pigment, 131. reducing agent, 128. refractories, 130. scavenger, 129. weighting filter, 131. Arrhenite, 20, 21. Arsenates, 93. Astrophyllite, 20, 21. Auerbachite, 20, 21. Azide, 46. Baddeleylte, 20, 98. Beccarite, 20, 21. Benzoate, basic zirconyl benzoates, 114. Bibliography, 149-169. Boride, 49, 50. Brazilite, 20, 21. Bromides, addition compounds, 72. basic zirconyl bromides, 73. normal zirconium tetrabromide, 72. preparation of. 72. properties of, 72. zirconyl bromide, 72. Carbide, zirconium carbide, 30, 47. Carbonates, absorption of carbon dioxide by hydroxide, 110. basic zirconyl carbonates, 110. precipitation by alkaline carbonates, Catapleiite, 20, 21, 103. Chalkolamprite, 20, 21. Chlorate, basic zirconyl chlorate, 71 ; normal zirconium chlorate, 71. Chromate, basic zirconyl chroma te, 94. Citrate, ammonium zirconium citrate. Ill, 112. Cyanides, zirconyl cyanides, 116. Cyrtolite, 20, 21. Discovery of the element, 15. Distribution of ores and minerals, 17, 18. Elpidite, 20, 21, 103. Erdmannite, 20, 21. Eudialyte, 20, 21. Euxenerde, 20, 21. Fergusonite, 20, 21. Ferricyanide, zirconyl ferricyanide, 116. Ferrocyanide, zirconyl ferrocyanide, 116. Fluorides, normal zirconium fluoride, 53. preparation of, 53. properties of, 54. constitution of hydrate, 54. double salts (vid. fluozirconates), 55. loss in analysis, 54. zirconyl fluoride, 54. Fluozirconates, 55. ammonium fluozirconate, 56, 57. barium fluozirconate, 61. cadmium fluozirconate, 61. caesium fluozirconate, 58, 59. calcium fluozirconate, 60. copper fluozirconate, 60. lead fluozirconate, 61. lithium fluozirconate, 55, 56. magnesium fluozirconate, 62. manganese fluozirconate, 62. nickel fluozirconate, 62. nickel and potassium fluozirconate, 62. potassium fluozirconate, 57, 58. rubidium fluozirconate, 58. silicon (zirconium silico-fluoride), 63. sodium fluozirconate, 56. strontium fluozirconate, 60. thallium fluozirconate, 63. zinc fluozirconate, 61. Formates, normal zirconium formate, 110. zirconyl formate, 110. Formulas for basic zirconyl salts, 33. Hiortdahlite, 20, 21. History of the element, 15, 16. Hyacinth, 17, 18. Hydride, zirconium hydride, 34, 35. Hypophosphite, 92. Jacinth, 17. Jacupirangite, 20. Jargon, 17. Jargonium, 16. Kochelite, 20, 21. Lovenlte, 21, 103. 171 172 SUBJECT INDEX Malacone, 20, 21. Mengite, 97. Molybdates, 95, 96. Monoxide, 35. Mosandrite, 21. Nitrates, addition compounds with zir- conyl nitrate, 89. basic zirconyl nitrates, 88. dialysis of basic nitrates, 89. existence of normal zirconium nitrate, 87. hydrates of zirconyl nitrate, 87. hydrolysis of zirconyl nitrate, 88, 89. •zirconyl nitrate, 87. Nitrides, 30, 45, 46, 47. Noria, 16. Occurrence of zirconium compounds, 16— 21. Olivieraite, 21. Ores, distribution of, 17, 18. Organic acids, 110-113. Organic bases and tetrahalides, 114-119. addition compounds formed, 117-118. precipitates formed, 119. Oxalates, ammonium zirconium oxalate, 112, 113. basic zirconyl oxalates, 112. solubility of hydroxide in oxalic acid, 112. zirconyl oxalate, 112. Oxide (vid zirconia). Oxysulphide, 49. Patents, 133-148. abrasive, 143. abrasive and polishing agent, 147. alloy for high melting point and ductility, 139. alloy Zr, Fe, Si, Cr, Ni, Mn, 135. alloy Zr, Fe, Ti, 146. alloy Zr, Nb, Ta, 137. alloy Zr, Ni, 134. alloy Zr, Ni, Al, Si, 135. alloy Zr, Ni, Al, Si, W, Pe, 135. alloy Zr, Ni or Co, Cr, 135. alloy Zr, Pb, 143. alloy Zr, Sb, 141. alloys for filaments, electrodes, etc., 144. alumino-thermic reduction, 134. basic zirconyl chloride, 145. basic zirconyl sulphate, 144, 145, 146. basic zirconyl sulphate and chloride, 137. brittleness of tungsten filaments re- moved by Zr, 147. carbide preparation, 145. castings, 142. chemical application of zirconia, 138. clouding agent for enamels, 142. clouding agent, 142. clouding glass, enamels, and glazes, 144. clouding composition for enamels, 136. colloid, use of, 141. colloidal zirconium, 140. crystallizing zircon, 138. cyanonitride, 133. drawing filaments, 139. enamels, 136. enamels, white, 142. ferro alloys containing carbide, 144. ferro-zirconium, 134, 147. ferro-zirconium alloys, 137. ferro-zirconium (steel), 146. filament, improvements detailed, 138. filament, improvements in production, 138. Patents — Continued. filament for lamps, 136, 145, 148. filament production, 136. filament solder, 141. fire-proofing and weighting silk, 144. fusion of zirconia with caustic alkalis, 134. gas mantles, 146, 147. inert powder for medicinal use, 147. iron free zirconia for enamels, 138. iron free zirconia, detailed, 138. manufacture of alloys for filaments, 140. metallic zirconium or its alloys, pro- duction, 136. nitrate preparation, 147. nitride production, 133. nitride purification, 134. opacifier for enamels,- 138. ores in gold extraction, 139. peptizing coagulated zironium colloid, 140. porcelain (clay, feldspar and zirconia), 135. recovery of valuable constituents In zirconium ores. 143. refractory of zirconia and alumina, 139. refractory of zirconia and chromite, 139. refractory vessels, 139, 140. separation from iron, 133. separation as pyrophosphate, 134. separation from rare earths by elec- trolysis, 135. silicide, oxide and salts, preparation, 139. utensils of zirconia, 133. weighting silk, 142, 146. white pigment and lacs, 147. zirconia ores, purification, 143. zirconia, preparation from ore, 137. zirconia, pure, from zirkite, 138. zirconia purifying, 142. zirconium, pure, production, 141, 146. zirconium, preparation, 143. zirconium preparation from hydride or nitride, 146. Pentoxide, 44. Perchlorates, acid zirconyl perchlorate, 71. basic zirconyl perchlorate, 71. Periodate, basic zirconyl periodate, 75. Perzirconates, lithium perzirconate, 107. potassium perzirconate, 107. sodium perzirconate, 107. Phosphates, basic zirconyl phosphates, 91. double salts with alkalis, 92. double salts with sodium, 92, 93. hypophosphite, 92. pyrophosphate, 90.. solubility of hydroxide in phosphoric acid, 89. subphosphate, 91. Phosphide, 51, 52. Polymignite, 21, 97. Pyrochlor, 21. Pyrophosphate, zirconium pyrophosphate, 92. Pyroracemate (propanonate), 115. Rosenbuschite, 21. Salicylates, basic zirconyl salicylates, 115. Selenates, basic zirconyl selenates, 86. Selenite, basic zirconyl selenites, 85, 86. normal zirconium selenite, 85. Silicates, artificial, 103. calcium zirconium silicate, 104. SUBJECT INDEX 173 Silicates — Continued. lead-zirconium silicate, 104. potassium-zirconium silicate, 104. sodium-zirconium silicate, 103, 104. vid zircon. Silicide, 50, 51. Silico-fluoride, 63. Subphosphate, 91. Sulpharsenate, 93. Sulphates, acid zirconium sulphate, 78. acid zirconyl sulphate, 81. basic zirconyl sulphate, 80, 81, 82. double salts with zirconium sulphate, 80. double salts with zirconyl sulphate, 83. hydrolysis of zirconium sulphate, 78. normal zirconium sulphate, 77. preparation of zirconium sulphate, 77. properties of zirconium sulphate, 77. zirconyl sulphate, 81. Sulphite, basic zirconyl sulphite, 76. normal zirconium sulphite, 76. Tachyaphaltite, 21. Tantalite, 21. Tartrates, basic zirconyl tartrate, 113. zirconyl-ammonium tartrate, 113. zirconyl-potassium tartrate, 113. solubility of hydroxide in ammonium tartrate, 113. solubility of hydroxide in tartaric acid, 113. Tellurate, zirconyl tellurate, 86. Tellurite, zirconyl tellurite, 86. Thiocyanate, zirconium thiocyanate, 116. organic double compounds with zir- conium thiocyanate, 116. Titanates, natural occurring titanates, 97. zirconyl titanates, 97. Trioxide, 44, 45. Tungstates, ammonium zirconyl tung- states, 95. basic zirconyl tungstates, 94. potassium zirconyl tungstates, 95. Uhligite, 21. Valerianate, 115. Vanadate compound, 96. Wohlerfte, 21, 103. Zircon, altered, 98. analyses, 98. artificial, 102. chemical behavior, 99. color, 19. composition, 17, 18, 98. crystal form, 97. luminescence, 99-102. melting point, 99. minerals, 20. Zircon — Contin urd. occurrence, 17, 18. specific gravity, 99. types, 21. Zirconates, 33. barium zirconate, 108. 109. calcium zirconate, 108. formation of zirconates, 104. lithium zirconate, 107. magnesium zirconate, 108. perzirconates, 107. potassium zirconate, 107. sodium zirconate, 106. strontium zirconate, 108. Zirconia, boiling point, 39. chemical conduct, 39, 40. coefficient of expansion, 39. conductivity for electricity, 39. conductivity for heat, 39. crystalline form, 39. crystallization, 38. heat of formation, 39. light emission, 39. melting point, 39. native, 36. occurrence, 36. preparation from zircons, 37, 38. porosity, 39. purification of native, 36, 37. reflecting power, 39. specific gravity, 39. specific heat, 39. volatilization, 39. Zirconium, adsorption compounds, 32. aluminum compounds, 23. amorphous, 23, 26. atomic number, 31. atomic weight, 31. cations, 32. chemical behavior, 30. colloidal metal, 26. electrical properties, 28. hydroxide, 40. hydroxide dehydration, 40, 41. hydroxide solubility, 41, 42. melting point, 27. monoxide, 35. normal salts, 32. optical properties, 28. oxide — vid, zirconia. pentoxide, 44. preparation, 22, 23, 24. specific gravity, 27, 28. spectrum, 28, 29. trioxide, 44, 45. values, 32, 33. Zirconsulphuric acid, 79. Zirconyl radical, 32, 33. dehydration, 41. formation, 43. ionic migration, 105. solubility, 41, 42. zirconyl hydroxide, 40, 41, 105. Zirkelite, 19, 20, 21, 99. **« PLEASE DO NOT REMOVE CARDS OR SLIPS FROM THIS POCKET UNIVERSITY OF TORONTO LIBRARY TTe ."ble, Fr-ncir I reston V//75zi "irconiun •cilled. 