Frequency-dependent electrical conductivities of solutions of aqueous strontium hydroxide and strontium chloride have been measured from T = 295 K to T = 625 K at p = 20 MPa, over a very wide range of ionic strength (3 × 10(-5) to 0.2 mol kg(-1)), using a high-precision flow AC conductivity instrument. Experimental values for the concentration-dependent equivalent conductivity, Λ, of the two el...

Optimization of an acidic calcium phosphate cement with enhanced radiopacity. INTRODUCTION: Calcium phosphate cements (CPCs) are commonly used in biomedical applications due to their resemblance to the mineral phase of bone. However, due to this resemblance the radiopacity of CPC is very similar to that of bone. The inorganic radiopacifiers (e.g. ZrO 2 and BaSO 4) commonly used in non degradabl...

In oxygenic photosynthesis, PSII carries out the oxidation of water and reduction of plastoquinone. The product of water oxidation is molecular oxygen. The water splitting complex is located on the lumenal side of the PSII reaction center and contains manganese, calcium, and chloride. Four sequential photooxidation reactions are required to generate oxygen from water; the five sequentially oxid...

Toxicological studies of radionuclide passage across the skin, which represents a crucial barrier of radiation, are important for ensuring the quality of the environment. Both (137)Cs and (90)Sr are most frequently involved in radionuclide contamination of the human body. In our study, we selected (90)Sr because this radionuclide is chemically very close to the bio-element calcium. The permeati...

In article number 2008505, Farid Akhtar and Zhejian Cao design a novel porous strontium chloride (SrCl2) scaffolded by graphene networks as ammonia carriers. The optimized SrCl2-reduced oxide (rGO) composite demonstrates extraordinary structural stability rapid kinetics for absorption desorption, offering robust structure selective catalytic reduction systems potential hydrogen storage applicat...

The selective catalytic reduction (SCR) system in automobile using urea solution as a source of NH3 suffer from solid deposit problem pipe lines and poor efficiency during engine startup. Although direct use high pressure is restricted due to safety concern, which can be overcome by sorbents carrier. Strontium chloride (SrCl2) considered the best sorbent its sorption capacity; however, challeng...

The chemical potentials of each solute in an aqueous mixture of two electrolytes have been determined for many systems. For example, the activity coefficients of both hydrochloric acid and sodium chloride in mixed aqueous solution have been derived from emf measurements [I]. The isopiestic vapor pressure method has been used [2] to determine the activity coefficients of each solute in aqueous m...

1. Cholesterin, whether suspended in dilute alcohol or in sodium oleate solution, when injected directly into tumors causes a marked acceleration both of the primary and of the metastatic growth. 2. The acceleration of the growth of the primary tumor by cholesterin is most evident in the premetastatic stage. 3. Lecithin, when injected in the form of an aqueous emulsion directly into tumors, dim...