A sequential test for the number of defectives in a finite population /

K-25 Plant"K-737.""February 28, 1951."Mode of access: Internet

Mass spectrometric measurements of natural isotopic spectra / by R. F. Hibbs.

Work performed at the Carbide and Carbon Chemicals Corporation, Y-12 Plant, Oak Ridge, Tennessee."August 30, 1949.""AECU-556, (Y-472)"Mode of access: Internet

Thickness measurements of thin films by multiple-beam interferometry /

K-25 Plant"K-1135.""Date of Issue: June 16, 1954.""Date of Issue: June 15, 1954."Mode of access: Internet

Selected properties of 2-furaldehyde : a literature search /

Work performed by Carbide and Carbon Chemicals Corporation at Oakridge National Laboratory, Y-12 Plant."Contract No. W-7405-eng-26""April 9, 1953""Y-951"Mode of access: Internet

Determination of ammonia and nitrate nitrogen present in uranyl sulfate and uranium oxides /

Work performed by Carbide and Carbon Chemicals Corporation at Oakridge National Laboratory, Y-12 Plant."Contract No. W-7405-eng-26""Date Issued: NOV 12 1952""November 23, 1951""Y-919"Includes bibliographical references (p. 20).Mode of access: Internet

Investigations of analyses of zirconium hydride and zirconium oxide for boron /

Because of the refractory nature of zirconium hydride and zirconium oxide, analysis of these materials for trace amounts of boron may be affected adversely by loss of boron or contamination from the container during decomposition. Both sources of error may be obviated by a direct spectrochemical analysis employing either copper fluoride or sodium carbonate as pyroelectric distillation carriers. Since both the hydride and oxide appear to behave similarly in the arc with these carriers, easily prepared zirconium oxide standards were useable for analysis of both materials. Acid or fusion decompositions of the two compounds to allow separation of boron as trimethyl borate were studied. Decomposition was successful with refluxing sulfuric acid, and partly successful with sodium carbonate melts. Loss of boron during conversion of zirconium hydride to the oxide was indicated during a study of the ignition conditions, and shown conclusively by spectrographic examination of the off-gases. Contamination of the sample material by boron from new platinum ware was also found. Agreement of spectrochemical and curcumin colorimetric determinations of boron zirconium hydride was fairly good, but both methods lacked precision. The low precision may be attributable to inhomogeneity of the sample material.Work performed by Carbide and Carbon Chemicals Company at Oakridge National Laboratory, Y-12 Plant."Y-1052"--Cover."Date Declassified: October 4, 1955.""September 12, 1952.""Contract No. W-7405-eng-26."At head of title: Carbide and Carbon Chemicals Company, a Division of Union Carbide and Carbon Corporation, Y-12 Plant.Because of the refractory nature of zirconium hydride and zirconium oxide, analysis of these materials for trace amounts of boron may be affected adversely by loss of boron or contamination from the container during decomposition. Both sources of error may be obviated by a direct spectrochemical analysis employing either copper fluoride or sodium carbonate as pyroelectric distillation carriers. Since both the hydride and oxide appear to behave similarly in the arc with these carriers, easily prepared zirconium oxide standards were useable for analysis of both materials. Acid or fusion decompositions of the two compounds to allow separation of boron as trimethyl borate were studied. Decomposition was successful with refluxing sulfuric acid, and partly successful with sodium carbonate melts. Loss of boron during conversion of zirconium hydride to the oxide was indicated during a study of the ignition conditions, and shown conclusively by spectrographic examination of the off-gases. Contamination of the sample material by boron from new platinum ware was also found. Agreement of spectrochemical and curcumin colorimetric determinations of boron zirconium hydride was fairly good, but both methods lacked precision. The low precision may be attributable to inhomogeneity of the sample material.Mode of access: Internet.This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law

The mass spectrometer : a literature search : supplement /

Work performed by Carbide and Carbon Chemicals Corporation at Oakridge National Laboratory, Y-12 Plant."Date Issued: FEB 8 1955""October 20, 1954.""Subject category: Instrumentation.""Index No. Y-958 (1953 Supplement)."Mode of access: Internet

Colorimetric determination of zirconium /

Work performed by Carbide and Carbon Chemicals Corporation at Oakridge National Laboratory, Y-12 Plant."Contract No. W-7405-eng-26""October 27, 1952""Y-917"Includes bibliographic references (p. 10).Mode of access: Internet

Temperatures of underground cables /

"K-946.""Date of Issue: September 2, 1952."K-25 Plant, Carbide and Carbon Chemicals Company, a division of Union Carbide and Carbon Corporation acting under U.S. Government ContractMode of access: Internet

Use of ion exchangers in analytical chemistry /

Work performed at the Carbide and Carbon Chemicals Corporation."Date Declassified: December 15, 1948.""AECD-2414."Includes bibliographical references (p. 10-11).Mode of access: Internet