Results 131 to 140 of about 9,696 (146)
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Systematic investigation and comparison of oxalic acid dihydrate, ammonium oxalate hydrate and ammonium hydrogen oxalate oxalic acid dihydrate single crystals

Materials Science and Engineering: B, 2023
K. Mahendra   +6 more
openaire   +1 more source

Electrical and thermal properties of ammonium and potassium oxalates

Journal of Materials Science: Materials in Electronics, 1995
The d.c. electrical conductivity (Σ) and the relative permittivity (ɛ) were accurately measured as a function of temperature in the range 300 < T < 450 K for ammonium oxalate monohydrate (AOX), (NH4)2 C2O4H2O and potassium oxalate monohydrate (POX), K2C2O4H2O.
M.M. Mosaad   +3 more
openaire   +1 more source

Solid state studies on ammonium uranyl peroxy oxalates

Journal of Inorganic and Nuclear Chemistry, 1965
Abstract Infra-red absorption spectra, X-ray powder diffraction data and differential thermal analysis curves for the ammonium uranyl peroxy oxalates (NH4)2U2O6(C2O4)2·2H2O,(NH4)2UO4C2O4·3H2O, (NH4)2U2O8C2O4·4H2O and ammonium pyroperuranate (NH4)2U2O9·6H2O are recorded. The peroxy oxalates are characterized as ionic from their infra-red spectra.
openaire   +1 more source

Double ammonium oxalates of the rare earths and yttrium

Journal of Inorganic and Nuclear Chemistry, 1964
Abstract The rare earths and yttrium are precipitated by oxalic acid from acidic solutions, on the addition of ammonia, as double salts of the structure NH4LnOx2·yH2O, where y = 1 or 3. Precipitation is carried out from strongly acid solutions of the light earths, and less strongly acidic solutions of the heavy earths and yttrium.
M.F. Barrett, T.R.R. McDonald, N.E. Topp
openaire   +1 more source

Protection of medieval tombstones (Stećci) with ammonium oxalate treatment [PDF]

open access: possible, 2016
Since 2013 Croatian Conservation Institute has performed research and preliminary conservation works on medieval tombstones (stećci) on the archaeological site Crljivica near Cista Velika in Croatia. During the project, tombstones from several sites in the region of Cista were analysed for provenance study and for protection of stones.
Marinković, Vinka, Mudronja, Domagoj
openaire   +2 more sources

EXPERIMENTAL ACUTE AMMONIUM OXALATE POISONING OF SHEEP

Australian Veterinary Journal, 1971
James, M. P.   +2 more
openaire   +3 more sources

The test for calcium with ammonium oxalate

Journal of Chemical Education, 1927
Robert B. Corey, H. W. Rogers
openaire   +1 more source

Heat capacities of anhydrous ammonium oxalate and oxalic acid and their crystallohydrates

Thermochimica Acta, 1985
S.V. Dalidovich   +3 more
openaire   +1 more source

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