In order to normalize the polymer property with its molar mass the intrinsic viscosity is determined by extrapolation of reduced viscosity to zero mass concentration [6]. We may now establish an activity coefficient relative to the extreme value. Assume that disintegration of the stacked asphaltene ...
bymassofiron?A.iron(III)nitrateB.iron(II)sulfateEmpiricalFormulas1.Benzoicacidisacompoundusedasafoodpreservative.Thecompoundcontains68.8%C,4.95%Hand26.2%Obymass.A.Whatisitsempiricalformula?B.Ifgiven324gofbenzoicacid,howmanymoleswouldyouhave?2.2-Methylpropeneisacompoundusedtomakesyntheticrubber.Asampleofthis...
The binary mixtures of varying composition were prepared by mass in special air-tight bottles. The solutions of each composition were prepared fresh and all properties were measured the same day. The masses were recorded on a Mettlar one pan balance, which can read up to fifth place of ...
The densities of methanol, ethanol, 1-propanol, 1-butanol and 1-hexanol were measured in aqueous solutions of sodium dodecylsulfate at 25掳C. The partial molar volumes of the alcohols at infinite dilution in the aqueous surfactants solutions were calculated and discussed using a mass-action model...
The solubility of 1-butyl-3-methylimidazolium octylsulfate, [BMIM][OcSO 4 ], has been determined in hydrocarbon ( n -hexane, n -heptane, n -octane or n -decane) solutions and alcohol (methanol, 1-butanol, 1-hexanol, 1-octanol or 1-decanol) solutions. Densities and excess molar volumes...
Abstract: Method for producing polyacrylate adhesive compounds with a narrow molar mass distribution by radical polymerization and subsequent decolorization of colored reaction products resulting therefrom. Inventors: Prenzel, Alexander (Hamburg, DE)
It is found that the CREC-VL-Cell is of special value, for studying immiscible or partially miscible blends, such as is the case ofn-octane in water. With the data obtained, which includes vapor pressures and temperatures, data analyses involving mass and molar balances, allow establishing ...
Table 1. Suppliers and quoted purity of materials used in this study. CompoundSupplierPurity (Mass fraction)CAS No. n-hexane Merck ≥ 99.0 110-54-3 n-octane Sigma-Aldrich ≥ 99.9 111-65-9 cyclopentane Fluka ≥ 98.5 287-92-3 cyclohexane ACE ≥ 99.0 11-82-7 hex-1-ene Sigma-Aldrich ≥...
Micelle molar mass, association number and viscometric hydrodynamic radius increase with the length of the copolymer chain for a constant copolymer composition; however, the radius of gyration decreases. Finally, the results found for SEBS micelles in n -octane are compared to those found for SEBS...
Densities of the ternary system water-sodium dodecylsulfate (NaDS)-pentanol and of the binary systems butanol-octane and pentanol-octane were measured at 15, 25, and 35 掳C. The apparent molar volume of pentanol in the ternary system was analyzed using a mass-action model for the alcohol ...