Inorganic Syntheses VOLUME V Inorganic Syntheses VOLUME V EDITOR-IN-CHIEF THERALD MOELLER University of Illinois ASSOCIATE EDITORS GEORGE H. CADY EUGENE G. ROCHOW University of Washington Haruard University HENRY F. HOLTZCLAW, JR. WALTER SCHUMB C. University of Nebraska Massachusetts Institute of Technology JACOB KLEINBERG JANET D. SCOTT University of Kasas G. & C. Merriam Company ADVISORY BOARD LUDWIG F. AUDRIETH WARREN C. JOHNSON University of IUinois University of Chicago JOHN C. BAILAR, JR. HERMAN I. SCHLESINGER University oj IUirwia University of Chicago COKARD FERNELIUS RALPH C. YOUNG w. The Pennsylvania State University Massachusetts Institute of Technology RIIcGRAW-HILL BOOK COMPANY, INC. New York Toronto London 1957 INORGANIC SYNTHESES, VOLUME V Copyright @ by the McGraw-Hill Book Company, Inc. Printed in thr 1957 United States of America. All rights reserved. This book, or parts thereof, may not be reproduced in any form without permission of the publishers. Library of Congress Catalog Card Number 39-23015 THE MAPLE PRESS COMPANY, YORK, PA. To Raymond Eller Kirk (1890-1 957) and Arthur Alphonzo Blanchard (1876-1956) PREFACE The enthusiastic reception accorded earlier volumes in this series and the continuing interest expressed in them have encouraged the Board of Editors of INORGANIC SYNTHESEtoS continue the series in the present volume. The rapidly expanding interest in inorganic chemistry, as reflected by increased publication of the results of funda- mental research, by greater emphasis upon instruction at the advanced level, and by development of new industrial processes, indicates clearly the necessity for making avail- able exact and t,ested procedures for the preparation of inorganic substances. It is hoped that the material in these volumes will both aid in the solving of specific prob- lems and stimulate additional interest in, and investigation of, other problems in the inorganic area. The policy of having each synthesis carefully checked in at least one independent laboratory has been continued. This has provided a means of determining the exactness and correctness of each procedure and often a means of increasing the usefulness of the procedure through incor- poration of the findings of the checker. Each synthesis has been edited after checking and approved in final form by both submitter and checker before publication. That many of the procedures either originated or were checked in industrial laboratories may be taken as indicative that the material here is of both technical and fundamental interest. The Board of Editors is particularly happy to point out that many of the procedures have come from abroad. In accordance with the convention established in earlier vii viii PREFACE volumes, the syntheses in Volume V are arranged by chap- ters on the basis of the Xlendeleev periodic classification. Further subdivision into A and B families has been effected also. A few brief survey articles have been included at pertinent places to broaden the scope of the treatment. The system of nomenclature is that followed in Volumes I1 to IV. The volume has been cross-referenced liberally, and the subject and formula indexes are cumulative for all five volumes. Contributions are now being accepted for publication in Volume VI of the series. All manuscripts should be for- warded to Prof. Eugene G.R ochow, of Harvard University, who will serve as editor-in-chief of Volume VI. All such manuscripts should be submitted in triplicate and should follow, as nearly as possible, the style used in earlier vol- umes. Each manuscript should include in order a brief introduction summarizing reported methods of synthesis, a detailed procedure written in the present passive, a brief summation of important physical and chemical properties. and an accurate compilation of pertinent references listed with initials of the authors. Analytical methods which are distinctive should be included in a separate section after Procedure. Numerical data on yields and analytical results are essential in all possible cases. The Board of Editors takes great pleasure in announcing the election to membership on the Editorial Board of Dr. Eugene 0. Brimm, of Linde Air Products Company; Dr. Joseph J. Katz, of the Argonne National Laboratory; and Prof. Geoffrey Wilkinson, of the Imperial College, London. The editors wish, again, to call attention to the fact that INORGANICS YNTHESEisS a periodical publication and that a reference to an article appearing in any volume should include the names of the authors of that article and not the name of the editor-in-chief of the volume. The editor-in-chief is most grateful to his associates on the Editorial and Advisory Boards for their assistance and advice in the preparation of Volume V. Miss Janet D. PREFACE ix Scott has been particularly helpful in handling all the prob- lems of nomenclature and indexing. The editor wishes also to thank Mrs. Marie C. Hall for her aid in preparing the manuscript and Mr. Valentine D. Galasyn for his invaluable help in editing the manuscript and checking proof. The editors will be most grateful to readers and users of this and other volumes of INORGANISCY NTHESEfoSr infor- mation concerning any errors or omissions. Therald Moeller CONTENTS Preface . . . . . . . . . . . . . . . vii CHAPTER IA 1. Lithium Hydroperoxide 1-Hydrate, Lithium Peroxide, and Lithium Oxide . . . . . . . . . 1 2. Sodium Dispersions . . . . . . . . . . 6 3. Sodium Hydride . . , . . . . . . . . 10 CHAPTER JB 4. Dichloro(d i-2-pyrid ylamine) copper (II ) and Bis(di-2- pyridylamine)copper(II) Chloride. . . . . . 14 5. Diiodocuprate(1) . . 16 Bis(ethylenediamine)copper(II) 6. Disilver Fluoride . . . . . . . . . . . 18 CHAPTER IIA 7. Beryllium Chloride. . . . . . . . . . . 22 CHAPTER IIIA 8. Boron Halide-Amine Coordination Compounds . . 26 A. Boron Fluoride-Trimethylamine . . . . . 26 B. Boron Chloride-Trimethylamine . . . 27 9. Ethyl Orthoborate . . . . . . . . . . . 29 CHAPTER IIIB 10. Isolation of Samarium, Europium, and Ytterbium Materials by Means of Sodium Amnlgam . 32 A. General Procedure . . , . . . . . . 33 B. Separation of Samarium and Europium . 35 11. Anhydrous Lanthanon Nitrates . . . . . . . 37 CHAPTER IVA 12. Cyanogen . . . . . . . . . . . . . 43 xi xii CON TENTS 13. Allophanyl Hydrazide . . . . . . . . . . 48 A. Alkyl Allophanates . . . . . . . . . 49 B. Allophanyl Hydrazide . . . . . . . . 50 14. Urazole . . . . . . . . . . . . . . 52 A. Preparation from Methyl Allophanate . . . 53 B . Preparation from Ethyl Allophanate . . . . 54 15. Silica Gel (Correction) . . . . . . . . . . 55 16 . Organosilazane Compounds . . . . . . . . 55 A. Hexamethyldisilazane . . . . . . . . 56 B. N-methylhexamethyldisilazane . . . . . 58 C . Trimethyl (ani1ino)silane . . . . . . . 59 D . Hexamethylcyclotrisilazane and Octamethylcy- clotetrasilazane . . . . . . . . . 61 17. Organogermanium Compounds . . . . . . . 64 18. Tetraphenylgermane . . . . . . . . . . 70 19. Hexaphenyldigermane . . . . . . . . . . 72 20 . Diphenylgermane . . . . . . . . . . . 74 21 . Triphenylbromogermane and Triphenylgermane . . 76 CHAPTER IVB 22 . Extraction of Titanium(1V) Oxide from Ilmenite . . 79 A. Decomposition of the Mineral . . . . . . 80 B. Removal of Iron . . . . . . . . . . 80 C . Recovery of Titanium(1V) Oxide . . . . . 81 23 . Titanium(1V) Sulfide . . . . . . . . . . 82 CHAPTER VA 24 . Nitrogen(1V) Oxide . . . . . . . . . . 87 . 25 l,l,l -Trisubstituted Hydrazonium Chlorides . . . 91 A. The Chloramide Generator . . . . . . . 92 B . l,l,l -Trimethylhydrazonium Chloride . . . 94 C . l,l,l -Triethylhydrazonium Chloride . . . . 94 26 . Phosphorus(II1) Fluoride . . . . . . . . . 95 27 . Hexaguanidonium Tetraphosphate l-Hydrate . . . 97 A . Purification of Sodium Tetrametaphosphate . . 98 B . Hydrolysis of Tetrametaphosphate to Tetra- phosphate . . . . . . . . . . . . 99 C . Precipitation of Hexaguanidonium Tetraphos- phate . . . . . . . . . . . . . 1 00 . 28 Sodium Monothiophosphate . . . . . . . . 1 02 CONTENTS xiii CHAPTER VB 29. Preparation of Metal Derivatives of 1,3-Diketones . 105 30. Vanadium(1V) Oxy(acety1acetonate) . . . . . 113 A. Preparation from Vanadium(V) Oxide through Prior Reduction to Oxyvanadium(1V) Ion . . 114 B. Direct Preparation from Vanadium(V) Oxide . 115 CHAPTER VIA 31. . . . . . 117 N-Nitrosohydroxylamine-N-sulfonates A. Potassium . 117 N-Nitrosohydroxylamine-N-sulfonate B. . 119 SodiumN-Nitrosohydroxylamine-N-sulfonate C. by Meta- N-Nitrosohydroxylamine-N-sulfonates thesis . . . . . . . . . . . . . 120 32. Hydroxylamine-0-sulfonic Acid . . . . . . . 122 33. Selenium(1V) Chloride. . . . . . . . . . 125 CHAPTER VIB 34. Chromium(II1) Iodide. . . . . . . . . . 128 35. Chromium(II1) Acetyhcetonate . . . . . . . 130 36. Aquopentammine- and Acidopentamminechromium- (111) Salts. . . . . . . . . . . . . 131 A. Aquopentamminechromium(1 11) Ammonium Ni- trate . . . . . . . . . . . . . 132 B. Nitropentamminechromium(II1) Nitrate . . . 133 C. Nitratopentamminechromium(II1) Nitrate . . 133 D. Bromide . . 134 Bromopentamminechromium(I1I) 37. Tungsten Hexacarbonyl . . . . . . 1 35 38. Tripotassium . . . . 139 Enneachloroditungstate(II1) 39. Uranium(1V) Chloride. . . . . . . . . . 143 40. Uranium(II1) Chloride. . . . . . . . . . 145 41. Uranyl Chloride . . . . . . . . . . . 148 42. Uranyl Hydrogen Orthophosphate 4-Hydrate . . . 150 CHAPTER VIIA 43. Anhydrous Metal Chlorides . . . . . . . . 153 44. Chlorine(1) Compounds . . . . . . . . . 156 A. Chlorine(1) Oxide . . . . . . 1 56 B. Chlorine(1) Oxide in Carbon Tetrachloride Solu- tion . . . . . . . . , . . . . 158 C. Hypochlorous Acid . . . . . . . . . 160 D. Calcium Hypochlorite . . . . . . . . 161