Results 181 to 190 of about 47,565 (237)

Determination of Sodium Carboxymethylcellulose*

Journal of the American Pharmaceutical Association (Scientific ed.), 1955
Abstract A method for the determination of sodium carboxymethylcellulose in antibiotic preparations. The copper salt of carboxymethylcellulose is precipitated and analyzed for carboxymethylcellulose colorimetrically using 2,7‐naphthalenediol. Possible use of this method in quantitative determination of carboxymethylcellulose is suggested.
C R, SZALKOWSKI, W J, MADER
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THE PREPARATION OF SODIUM CARBOXYMETHYLCELLULOSE

Canadian Journal of Research, 1950
The preparation of sodium carboxymethylcellulose from cellulose, sodium hydroxide, and sodium chloroacetate in the presence of water was investigated. The effects of temperature, excess of sodium hydroxide, ratio of water to cellulose, time of mixing, and manner of addition of the reagents were studied.
R. R. McLaughlin, J. H. E. Herbst
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Sodium Carboxymethylcellulose(CMC)

2022
Sodium carboxymethylcellulose (CMC) was developed in Germany during the World War I era as a potential substitute for gelatin. However, technical difficulties and high production costs stifled and delayed full-scale commercialization of CMC at that time.
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Ionotropic crosslinking of sodium carboxymethylcellulose and sodium carboxymethylcellulose‐gelatin matrices and their erosion properties

Journal of Applied Polymer Science, 1993
AbstractHydrophilic sodium carboxymethylcellulose (NaCMC) matrices were chemically modified into hydrophobic gels by ionotropic crosslinking with cupric or ferric ion under ambient temperature and pH. Insoluble matrices were also prepared using an interactive polymer gelatin in combination with NaCMC. These matrices underwent erosion at the crosslinks,
M. P. Prasad, M. Kalyanasundaram
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A Nonaqueous Titration Assay for Sodium Carboxymethylcellulose

Journal of the American Pharmaceutical Association (Scientific ed.), 1955
Sodium carboxymethylcellulose may be assayed for its content of sodium by titration, following preliminary heating with glacial acetic acid, with 0.1 N perchloric acid.
C N, SIDERI, A, OSOL
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Interaction of sodium carboxymethylcellulose with methyllcellulose and polyacrylamide

Archives of Biochemistry and Biophysics, 1965
Abstract By the use of electrophoretic analysis, interactions were shown to occur between an anionic polyelectrolyte, sodium Carboxymethylcellulose (SCMC), and the “neutral polymers,” methylcellulose (MC) and polyacrylamide (PAM). The concentration of the individual polymers was varied to determine the stoichiometry of the reaction in acetate buffer,
D, PLATT, N C, RAWLINGS
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Studies on polyelectrolytes. I. Sodium carboxymethylcellulose

Journal of Colloid Science, 1952
Various physicochemical properties of sodium carboxymethylcellulose solutions, namely, viscosity, pH-effect, salt-effect, and conductivity have been measured. The peculiar characteristics of these solutions compared to those of neutral polymers on the one hand and strong electrolyte on the other have been attributed to the polyelectrolytic nature of ...
Sadhan Basu, Pares Ch Das Gupta
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Viscosity properties of sodium carboxymethylcellulose solutions

Cellulose, 2007
Through viscosity measurements, concentration and temperature dependences of viscosity of sodium carboxymethylcellulose (CMC) solution were recorded. Effects of glycerin, mechanical shearing and several electrolytes on the CMC solution were also determined.
Xiao Hong Yang, Wei Ling Zhu
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Interaction of 5-fluorouracil with sodium carboxymethylcellulose

Colloid & Polymer Science, 1982
The interaction of an anticancer drug, 5-fluorouracil with sodium carboxymethylcellulose in aqueous solution was studied with a spectral method and viscosity measurement. From the binding data, the standard molar change in enthalpy, entropy and the number of binding sites on polymer were calculated.
K. Nishida, Y. Ando, M. Enomoto
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Determination of sodium carboxymethylcellulose in detergent products

Journal of the American Oil Chemists' Society, 1972
AbstractSodium carboxymethylcellulose in detergent products reacts with phenol in a sulfuric acid media to give a colored reaction product, the absorbance of which is measured at 490 mµ. No interference was experienced from the normal constituents of detergent products. The reproducibility was found to be±0.05% absolute.
J. H. Mallory, M. L. Porter
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