Results 11 to 20 of about 6,053,557 (280)

Potassium compounds for gamma spectrometer efficiency verification.

open access: yesApplied Radiation and Isotopes, 2017
WOS: 000403129500008PubMed ID: 28395223Now-a-days several standard and well calibrated radioactive sources are available for gamma spectrometer efficiency calibration but at some situations, like lack of standard calibrators, in need of verification of ...
E. E. Belgin, G. A. Aycık
semanticscholar   +4 more sources

Extraction and characterization of polyphenolic compounds and potassium hydroxycitrate from Hibiscus sabdariffa

open access: yesFuture Foods, 2021
Hibiscus sabdariffa calyces were used to extract the polyphenolic compounds with three different solvents (water, methanol, and ethanol). The augmentation of temperature from 23 °C to 90 °C caused an adverse effect to polyphenols through thermal ...
Manisha Singh   +3 more
doaj   +2 more sources

The characterisation of Manganese (IV) compounds and the study of the thermal decomposition of Potassium Chlorate alone and with Mn(IV) and other oxides and salts [PDF]

open access: yes, 1998
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Manganese dioxide compounds are preferred curing agents for Polysulphide resins used as sealants in industry. These are required to have consistent setting
Goldblatt, Nicholas Zalmon
core   +7 more sources

ORGANIC ADDITIVE COMPOUNDS OF POTASSIUM HYDROXIDE. [PDF]

open access: yesJournal of the American Chemical Society, 1917
n ...
Dehn, William M., Merling, Ruth E.
openaire   +1 more source

Lithium recovery from lepidolite roasted with potassium compounds

open access: yes, 2020
Three different potassium compounds, namely K2SO4, KOH, and K2SO4 + KOH, were used as additives to extract lithium from lepidolite by roasting and water leaching.
Hui Su   +7 more
semanticscholar   +1 more source

Preparation of Preyssler-type Phosphotungstate with One Central Potassium Cation and Potassium Cation Migration into the Preyssler Molecule to form Di-Potassium-Encapsulated Derivative [PDF]

open access: yes, 2018
A mono-potassium cation-encapsulated Preyssler-type phosphotungstate, [P5W30O110K]14– (1), was prepared as a potassium salt, K14[P5W30O110K] (1a), by heating mono-bismuth- or mono-calcium-encapsulated Preyssler-type phosphotungstates (K12[P5W30O110Bi ...
Hiromi Ota (1595155)   +9 more
core   +2 more sources

Dechlorination of perchlorinated aromatic compounds by graphite-potassium-intercalate [PDF]

open access: yes, 1989
Lissel M, Kottmann J, Lenoir D. Dechlorination of perchlorinated aromatic compounds by graphite-potassium-intercalate. Chemosphere.
Kottmann, Jürgen   +2 more
core   +1 more source

Methods for synthesizing diethyl carbonate from ethanol and supercritical carbon dioxide by one-pot or two-step reactions in the presence of potassium carbonate [PDF]

open access: yes, 2009
Carbon dioxide sequestration was studied by synthesizing diethyl carbonate (DEC) from ethanol and CO2 under supercritical conditions in the presence of potassium carbonate as a base. The co-reagent was ethyl iodide or a concentrated strong acid.
Thiebaud-Roux, Sophie   +3 more
core   +1 more source

Novel fluorinated phosphorus–sulfur heteroatom compounds : synthesis and characterization of ferrocenyl- and aryl-phosphonofluorodithioic salts, adducts, and esters [PDF]

open access: yes, 2015
A series of novel ferrocenyl- and aryl-phosphonofluorodithioic salts, adducts, and esters has been prepared. The reaction of 2,4-diferrocenyl-1,3,2,4-diathiadiphosphetane 2,4-disulfide {[FcP(μ-S)S]2, FcLR} with dry KF or tetrabutylammonium fluoride (TBAF)
Junyi Du   +12 more
core   +1 more source

EFFECT OF SOME CHEMICAL INDUCERS RESISTANCE FOR CONTROLLING DOWNY MILDEW DISEASE OF GRAIN SORGHUM AND ITS IMPACT ON BIOCHEMICAL CHANGES [PDF]

open access: yesJournal of Plant Protection and Pathology, 2009
Fourdifferentchemical inducers for resistance and metalaxyl fungicide were tested to control sorghum downy mildew disease (Sorghum vulgare L.) caused by Peronosclerospora sorghi (Weston and Uppal) C.G. Shaw.
H. Awad   +3 more
doaj   +1 more source

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