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ORE at CSIR-Institute of Minerals and Materials Technology: Recent submissions

Now showing items 3211-3220 of 3828

Sulphated zirconia: an efficient paraselective catalyst for mononitration of halobenzenes

Parida, K.M.; Pattnayak, P.K. (Catalysis Letters, 47(3-4), 1997: 255-257)

The nitration of halobenzenes (chlorobenzene, bromobenzene and iodobenzene) was carried out using sulphated zirconia (SO42-/ZrO2) as catalyst and stoichiometric quantities of nitric acid and acetic anhydride in CCl4 medium ...
Root growth of a salt susceptible and a salt resistant rice (Oryza sativa L) during seedling establishment under NaCl salinity

Misra, A.N.; Sahu, S.M.; Meera, I.; Mohapatra, P.; Das, N.; Misra, M. (Journal Of Biological Science And Crop Science-Zeitschrift Fur Acker Und Pflanzenbau, 178(1), 1997: 9-14)

The salt susceptible rice (Oryza sativa L.) cv. Jaya and salt resistant cv. Damodar seed germination and seedling growth rates were studied in laboratory and field conditions. The effect of salinity on seed germination, ...
Electro-dissolution of nichrome in hydrochloric acid

Chakravortty, M.; Paramaguru, R.K.; Sircar, S.C.; Jena, P.K. (Bulletin Of Electrochemistry, 13(6), 1997: 269-274)

Potentiostatic data are reported for cathodic polarisation of nichrome at room temperature ill HCl and mixture of HCl-NaCl. The applied current density (i(app)) at fixed overpotential, is proportional to hydrogen ion ...
Studies on ferric oxide hydroxides .3. Adsorption of selenite (SeO32-) on different forms of iron oxyhydroxides

Parida, K.M.; Gorai, B.; Das, N.N.; Rao, S.B. (Journal Of Colloid And Interface Science, 185(2), 1997: 355-362)

Adsorption of selenite (Se-3(2-)) on different polymorphic forms of iron oxyhydroxides and amorphous ferrihydrite was studied as a function of time, temperature, pH, and concentration of adsorbate(s) and adsorbent(s). ...
A new series of materials containing basic sulphates of iron(III)

Prasad, T.P.; Mahapatra, S. (Journal Of Thermal Analysis, 46(6), 1996: 1789-1800)

Series of basic sulphates which were precipitated by the hydrolysis of Fe(OH)SO4 in the presence and absence of metallic iron were studied from compositional, crystallographic and thermal decomposition points of view. The ...
Microstructural and magnetic studies on hydrothermally prepared hematite

Sahu, K.K.; Rath, C.; Mishra, N.C.; Anand, S.; Das, R.P. (Journal Of Colloid And Interface Science, 185(2), 1997: 402-410)

Hematite particles of various shapes and sizes have been prepared hydrothermally at different pH values ranging from 3 to 10 from ferric chloride solution at 180 degrees C. Particle size decreases with an increase in the ...
Viscosity and density of tri-n-butyl phosphate plus benzene plus o-xylene from 30 degrees C to 45 degrees C

Swain, N.; Panda, D.; Singh, S.K.; Chakravortty, V. (Journal Of Chemical And Engineering Data, 42(6), 1997: 1235-1237)

Viscosities and densities of ternary mixtures of tri-n-butyl phosphate + benzene + o-xylene were measured at (30, 35, 40, and 45)degrees C. The deviations in the viscosity from a mole fraction average were fitted in a ...
Studies on Indian ocean manganese nodules .3. Adsorption of aqueous selenite on ferromanganese nodules

Parida, K.M.; Gorai, B.; Das, N.N. (Journal Of Colloid And Interface Science, 187(2), 1997: 375-380)

Adsorption of aqueous selenite (SeO32-) on Indian Ocean manganese nodules was studied as a function of time, temperature, pH, and concentrations of adsorbate and adsorbent in acetic acid-sodium acetate buffer medium. ...
Micropropagation of Hemidesmus indicus (L) R Br through axillary bud culture

Patnaik, J.; Debata, B.K. (Plant Cell Reports, 15(6), 1996: 427-430)

A procedure for rapid in vitro propagation of the aromatic and medicinal plant Hemidesmus indicus (L.) R.Br. (Family Asclepiadaceae) from nodal explants is described. The highest shoot multiplication rate of 8.2 +/- 0.4 ...
Intra-granular annealing of disordered sub-particles in hematite grains

Rath, C.; Sahu, K.K.; Mishra, N.C.; Das, R.P.; Patnaik, K. (Disordered Materials - Current Developments -, 223, 1996: 287-291)

Studies on inter and intra particle grain growth in hematite (alpha-Fe2O3) prepared hy hydrothermal precipitation is reported. TEM, XRD and magnetic studies reveal the presence of disordered sub-particles in apparently ...

Now showing items 3211-3220 of 3828

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