Journal of Research of the National Bureau of Standards, Volume 37The Bureau, 1946 - Chemistry |
Contents
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Common terms and phrases
2-methylhexane 2,2-dimethylhexane 2,2,4-trimethylpentane 25 cents alginic acid alkylbenzenes alumina aluminum chloride American Petroleum Institute ampoule APIRP Azeotropic distillation Bakelite bars benzene BOILING POINT bound in buckram buffer Bureau of Standards calculated carbon catalyst Chem coefficient concentration crack curves determined Durez effect elastic electrodes entropy equation equilibrium constant ethylbenzene experimental F. D. Rossini FINAL VOLUME Flexural strength FREEZING POINT function fuze gaseous glass heat hydrocarbon hydrochloric acid hydrogen impurities indicated Journal of Research kaolin lactone lb/in liquid load mannuronic lactone material measured method methyl mixture MOLE PERCENT mutarotation National Bureau NUMBER OF FRACTIONS obtained oxide p-xylene PERCENT BY VOLUME Phys plate plywood Poisson's ratio potassium pressure PURITY IN MOLE reaction REFRACTIVE INDEX Research NBS resin ring rotation salt sample shown in figure sodium chloride solution specimens stress temperature thermal expansion tion tube values vibration VOLUME IN ML
Popular passages
Page 101 - The scale of ordinates measures the amount in mole fraction, and the scale of abscissas gives the temperature in degrees Kelvin and degrees centigrade. The vertical width of a band at a given temperature measures the mole fraction of the given isomer present when at equilibrium with all of its other isomers, in the gaa phase.
Page 125 - Standards by the American Petroleum Institute Research Project 6 on the "Analysis, purification, and properties of hydrocarbons" from material supplied by the Standard Oil Development Co.
Page 241 - XXVI + 444 pages; bound in buckram, $2.75. MT6. TABLES OF SINE, COSINE, AND EXPONENTIAL INTEGRALS, VOLUME II: Values of these functions to 9, 10, or 11 significant figures from 0 to 10 at intervals of 0.001 with auxiliary tables. (1940) XXXVII + 225 pages; bound in buckram, $2.00.
Page 107 - Tests also were made with smooth specimens in an effort to determine the cumulative damage caused by fatigue at more than one stress. Two methods were developed for extrapolating to determine the point at which fatigue cracking starts, so the damaging cycle ratios could be based on the life of the specimens prior to cracking. Complete SN curves were determined for specimens after each of eight different damaging treatments.
Page 415 - MT8. TABLES OF PROBABILITY FUNCTIONS. VOLUME I: Values of these functions to 15 places of decimals from 0 to 1 at intervals of 0.0001, and from 1 to 5.6 at intervals of 0.001.
Page 27 - A process has been developed for the production of adherent nickel deposits, of good quality, on steel without the use of an electric current. The deposition of nickel is brought about by chemical reduction of a nickel salt with hypophosphites in a hot ammoniacal solution. The reaction is catalytic and, under the prescribed conditions of concentration and pH, no reduction occurs in the solution unless certain metals such as steel or nickel are introduced into the bath. The reduction then occurs only...
Page 305 - The following table is the fifth in a series of mathematical tables prepared by the Project for the Computation of Mathematical Tables...
Page 322 - In connection with the purification of hydrocarbons to a high degree of purity, the following points are to be noted: (a) a logical simple purification following the original synthesis or other preparation of a given hydrocarbon concentrate will usually remove all impurities except more-or-less closeboiling isomers...