Results 141 to 150 of about 218,762 (405)

Pengaruh Ion Karbonat dalam Proses Presipitasi Senyawa Kalsium Fosfat [PDF]

open access: yesMakara Seri Sains, 2002
An experiment has been conducted to fi nd out the effect of ion carbonate in the calcium phosphate precipitation process. It was conducted by adding CaCl2.2H2O 8 mM into Na2HPO4.2H2O 8 mM and NaHCO3.
Siti Ahmiatri, Djarwani S. Soejoko
doaj  

Light‐Induced On‐Surface Reactions: Bridging Photochemistry and Surface Science

open access: yesChemPlusChem, EarlyView.
This minireview examines molecular on‐surface photochemistry as an emerging strategy for synthesizing carbon‐based nanomaterials on substrates. A special emphasis is placed on bridging traditional photochemistry principles with surface science concepts.
Federico Frezza   +3 more
wiley   +1 more source

The Sensitized Luminescence of Manganese-Activated Calcite [PDF]

open access: bronze, 1947
James H. Schulman   +3 more
openalex   +1 more source

Shock induced vaporization of anhydrite CaSO4 and calcite CaCO3 [PDF]

open access: yes, 2000
Discovery of abundant anhydrite (CaSO4) and gypsum (CaSO4.2H2O) in the otherwise carbonate sediments comprising the upper portion of the rocks contained within the Chicxulub impact crater has prompted research on the shock-induced vaporization of these ...
Ahrens, Thomas J.   +2 more
core  

Enhancement of the Plant‐Accessible Phosphate Fraction in Sewage Sludge Ashes by Na+ or K+ Addition Prior to Combustion

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The addition of Na2CO3 or K2CO3 to sewage sludge prior to combustion leads to the production of ashes containing phosphate in the form of buchwaldite‐like phases (Ca(Na/K)PO4). Compared to conventional sewage sludge mono‐ashes, such Na‐ or K‐ashes show greatly increased P‐solubilities and proved to be potent P‐fertiliser materials in greenhouse ...
Lorenz Bier‐Schorr   +4 more
wiley   +1 more source

Wetlands as environments of early human occupation: A new classification for freshwater palaeowetlands

open access: yesThe Depositional Record, EarlyView.
A new classification for inland freshwater palaeowetlands to be used in the field or core laboratory by sedimentologists, providing examples from the Guadix Basin (southern Spain). Abstract Present wetlands have proven to be delicate, biodiverse ecosystems, that are natural sinks for CO2 and act as good indicators for climate changes.
S. Pla‐Pueyo   +1 more
wiley   +1 more source

Fifty years of research on the Joulters ooid sandbody—Impact on carbonate sedimentology and diagenesis and lessons learned from an invaluable analogue

open access: yesThe Depositional Record, EarlyView.
The Joulters ooid sandbody of northern Great Bahama Bank is a vast expanse of muddy ooid sands partly rimmed by clean ooid sands and formed into a relatively thick layer of significant extent. Knowledge of the development of depositional and diagenetic patterns in the Joulters example has forwarded our general understanding of carbonate sedimentology ...
Paul (Mitch) Harris
wiley   +1 more source

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