scholarly journals Activity Coefficients of Cadmium Iodate and Zinc Iodate in potassium Nitrate Solutions

1950 ◽  
Vol 71 (3) ◽  
pp. 223-226 ◽  
Author(s):  
Fumihiko Saegusa
Keyword(s):  
Activity Coefficients ◽  
Potassium Nitrate ◽  
Nitrate Solutions

Solubility and activity coefficients of lead chloride in potassium nitrate solutions at 25 °C and at boiling. Calculation of the supersaturation

1993 ◽  
Vol 71 (8) ◽  
pp. 1259-1264 ◽  
Author(s):  
Joan Torrent-Burgués ◽  
Sabino Veintemillas-Verdaguer
Keyword(s):  
Activity Coefficients ◽  
Potassium Nitrate ◽  
Lead Chloride ◽  
Interaction Parameters ◽  
Pitzer Equations ◽  
Ionic Interaction ◽  
Activity Product ◽  
Nitrate Solutions

The solubility and activity coefficients of lead chloride in aqueous potassium nitrate solutions, at 25 °C and at boiling, are reported. The activity product constant of lead chloride at boiling has been determined. The Pitzer equations have been applied to the system and have allowed us to determine unknown ionic interaction parameters at 25 °C. The calculation of the lead chloride supersaturation is illustrated using the activities instead of the concentrations.

THE PHOTOLYSIS OF POTASSIUM NITRATE SOLUTIONS

1924 ◽  
Vol 46 (4) ◽  
pp. [797]-802 ◽  
Author(s):  
William Theodore Anderson
Keyword(s):  
Potassium Nitrate ◽  
Nitrate Solutions

Solubility of thallium pertechnate in nitrate solutions

1981 ◽  
Vol 46 (12) ◽  
pp. 3083-3087 ◽  
Author(s):  
Vladimír Mikulaj ◽  
Eva Mišianiková ◽  
Fedor Macášek
Keyword(s):  
Activity Coefficient ◽  
Aqueous Solutions ◽  
Activity Coefficients ◽  
Molar Activity ◽  
Nitrate Solutions

Solubility of TlTcO4 was determined in water and in HNO3, NaNO3, NH4NO3, Ca(NO3)2, and LiNO3 aqueous solutions in concentrations 5-8 mol l-1. The solubility increases with increasing concentration of the electrolyte; the values measured were used for a calculation of the stoichiometric molar activity coefficients of the Tl+ and TcO4- ions. The activity coefficient values corrected for the fraction of the nonassociated Tl+ ions approach those of the base electrolytes up to their concentrations of 4-5 mol l-1.

scholarly journals A Tunable Freeform-Segmented Reflector in a Microfluidic System for Conventional and Surface-Enhanced Raman Spectroscopy

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1250 ◽  
Author(s):  
Qing Liu ◽  
Michael Stenbæk Schmidt ◽  
Hugo Thienpont ◽  
Heidi Ottevaere
Keyword(s):  
Raman Scattering ◽  
Microfluidic Chip ◽  
Numerical Approach ◽  
Surface Enhanced Raman Spectroscopy ◽  
Potassium Nitrate ◽  
Microfluidic System ◽  
Diamond Turning ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Nitrate Solutions

We present a freeform-segmented reflector-based microfluidic system for conventional Raman and Surface-Enhanced Raman Scattering (SERS) analysis. The segmented reflector is directly designed by a numerical approach. The polymer-based Raman system strongly suppresses the undesirable background because it enables confocal detection of Raman scattering through the combination of a freeform reflector and a microfluidic chip. We perform systematic simulations using non-sequential ray tracing with the Henyey-Greenstein model to assess the Raman scattering behavior of the substance under test. We fabricate the freeform reflector and the microfluidic chip by means of ultra-precision diamond turning and laser cutting respectively. We demonstrate the confocal behavior by measuring the Raman spectrum of ethanol. Besides, we calibrate the setup by performing Raman measurements on urea and potassium nitrate solutions with different concentrations. The detection limit of our microfluidic system is approximately 20 mM according to the experiment. Finally, we implement a SERS microfluidic chip and discriminate 100 µM urea and potassium nitrate solutions.

The rate of nucleation of supersaturated potassium nitrate solutions

1959 ◽  
Vol 14 (3) ◽  
pp. 247-251 ◽  
Author(s):  
Malcolm L White ◽  
Arthur A Frost
Keyword(s):  
Potassium Nitrate ◽  
Nitrate Solutions
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