Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A method is described whereby any preferential radial distribution of a particular fibre component in a blended yarn, relative to the yarn axis, may be measured and represented by a single numerical parameter, termed the Migration Index. The migration index is based on zoned fibre counts taken on a suitable number of…
Abstract The addition of small proportions of fine powders, particularly magnesium oxide, to maize starch, alters its flow properties in a manner which is contrary to the generally observed effects for fine powders. A measure of this effect is obtained by the angle of repose method and the disposition of the two compo…
Abstract A set of functions for characterizing the crystal orientation in a biaxially oriented crystalline polymer is proposed. The additional orientation functions may be determined from a measurement of the variation of x‐ray intensity with tilt angle of a film. From these functions and those described in Part II, t…
Abstract Commerical waxes whose melting points, refractive indexes and numbers of side chains are within the ranges described seem likely to give good ozone protection under static conditions. All waxes lead to worse cracking under dynamic conditions than if none had been included and it is clearly better to use no wa…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTExchange of Oxygen Atoms among Carbon Dioxide, Carbon Monoxide and Oxide Catalysts of Spinel TypeYukio Yoneda, Shoji Makishima, and Katsuyoshi HirasaCite this: J. Am. Chem. Soc. 1958, 80, 17, 4503–4507Publication Date (Print):September 1, 1958Publication History Published on…
During the past few years there has been a rapid development in the chemical technology of epoxy resins. Currently, these resins are being widely manufactured and are available under a variety of trade names. Industrially the epoxy resins are important for use in corrosion-resistant surface coatings, molding compounds…
Abstract The rate of absorption of nitrogen peroxide into water at 25° and 40°C. has been found to be a linear function of the concentration of nitrogen tetroxide in the gas phase and directly proportional to the interfacial partial pressure of the same species. The rate of absorption is independent of gas velocity ov…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProducts of "Low-iron Fermentation" with Bacillus subilis: Isolation, Characterization and Synthesis of 2,3-Dihydroxybenzoylglycine1,2Takeru Ito and J. B. NeilandsCite this: J. Am. Chem. Soc. 1958, 80, 17, 4645–4647Publication Date (Print):September 1, 1958Publication Histor…
Kyoji Kinoshita, Hidehiko Ishikawa, K\={o}z\={o} Shinoda; Solubility of Alcohols in Water Determined the Surface Tension Measurements, Bulletin of the Chem
Mueller's phenomenological theory of Rochelle salt, NaK${\mathrm{C}}_{4}$${\mathrm{H}}_{4}$${\mathrm{O}}_{6}$\ifmmode\cdot\else\textperiodcentered\fi{}4${\mathrm{H}}_{2}$O, has been generalized, and the properties of the clamped crystal described. A local field theory of the clamped crystal has been developed on the b…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid Phase Transitions in the UO2-ZrO2 System1Gerard M. WoltenCite this: J. Am. Chem. Soc. 1958, 80, 18, 4772–4775Publication Date (Print):September 1, 1958Publication History Published online1 May 2002Published inissue 1 September 1958https://pubs.acs.org/doi/10.1021/ja015…
Abstract Various procedures were used for extraction of Al from Ohio soils representing a wide range in extractable Al. One normal NH 4 OAc at pH 4.8 was selected as an extracting solution because of its superiority over Ba(OAc) 2 and BaCl 2 . One normal NH 4 OAc plus 0.2 N BaCl 2 was no better than NH 4 OAc alone. At…
The solubility of Al(OH) 3 was measured in NaOH and HClO 4 solutions. Possible reactions of Al(OH) 3 in dilute NaOH and HCIO 4 solutions are indicated along with the calculated constants. The amphoteric hydroxide was found to be more acidic than basic. The isoelectric point of Al(OH) 3 was determined to be pH 7.7.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Structure of Tetragonal Boron1J. L. Hoard, R. E. Hughes, and D. E. SandsCite this: J. Am. Chem. Soc. 1958, 80, 17, 4507–4515Publication Date (Print):September 1, 1958Publication History Published online1 May 2002Published inissue 1 September 1958https://pubs.acs.org/doi/…
The oxidation of purified green silicon carbide in controlled atmospheres was studied by weight‐gain measurement and by observation of the surface reaction products, including optical measurement of the thickness of the oxide surface film. The rate of oxidation was much greater for silicon carbide in contact with flui…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Crystal Structures of Some of the Rare Earth CarbidesF. H. Spedding, K. Gschneidner Jr., and A. H. DaaneCite this: J. Am. Chem. Soc. 1958, 80, 17, 4499–4503Publication Date (Print):September 1, 1958Publication History Published online1 May 2002Published inissue 1 Septemb…
Abstract A general method for describing the crystal orientation in a uniaxially oriented crystalline polymer is presented. It is shown that two orientation functions may be quantitatively evaluated from x‐ray diffraction data. The variation of these during mechanical and thermal treatment may be studied. These functi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhase Transitions in Collagen and Gelatin Systems1Paul J. Flory and Robert R. GarrettCite this: J. Am. Chem. Soc. 1958, 80, 18, 4836–4845Publication Date (Print):September 1, 1958Publication History Published online1 May 2002Published inissue 1 September 1958https://pubs.acs…
The refractive index of a sample of As2S3 was determined at three temperatures near 19°, 25°, and 31°C for selected wavelengths in the range 0.57 μ to 11.8 μ. A five term Sellmeier type dispersion equation was fitted to the averaged data reduced to 25°C; four of the constants were chosen to approximate an absorption c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbon Paste ElectrodesRalph N. AdamsCite this: Anal. Chem. 1958, 30, 9, 1576Publication Date (Print):September 1, 1958Publication History Published online8 April 2003Published inissue 1 September 1958https://pubs.acs.org/doi/10.1021/ac60141a600https://doi.org/10.1021/ac6014…