Equilibria in the Saturated Solutions of Salts Occurring in Sea Water. I. The Ternary Systems MgCl2-KCl-H2O, MgCl2-CaCl2-H2O, CaCl2-KCl-H2O and CaCl2-NaCl-H2O at 0°

1936 ◽  
Vol 58 (2) ◽  
pp. 318-322 ◽  
Author(s):  
Iver Igelsrud ◽  
Thomas G. Thompson
Keyword(s):  
Sea Water ◽  
Ternary Systems ◽  
Saturated Solutions

Physical Interpretation of Solubility Interaction Constants from the Series Expansion of the Relative Activity Coefficients

1994 ◽  
Vol 59 (9) ◽  
pp. 1911-1921 ◽  
Author(s):  
Jaroslav Nývlt ◽  
Jitka Eysseltová
Keyword(s):  
Activity Coefficient ◽  
Series Expansion ◽  
Activity Coefficients ◽  
Physical Interpretation ◽  
Ternary Systems ◽  
Relative Activity ◽  
Solubility Data ◽  
Close Relationship ◽  
Insight Into ◽  
Saturated Solutions

Hydration analysis, which enables information on ionic processes in saturated solutions to be derived from solubility data in ternary systems, was applied to the interpretation of solubility interaction constants from the relative activity coefficient expansion. A close relationship was found between the hydration analysis parameters and the solubility interaction constants characterizing the relative activity of solute, which extends our insight into the ionic behaviour of the system studied by using the values of the interaction constants.

Branchiostoma lanceolatum larvae: Some experiments on the effect of thiouracil on metamorphosis

1967 ◽  
Vol 47 (1) ◽  
pp. 49-59 ◽  
Author(s):  
J. H. Wickstead
Keyword(s):  
Constant Temperature ◽  
Sea Water ◽  
General Effect ◽  
Water Solutions ◽  
Usual Type ◽  
Toxic Concentration ◽  
Giant Larva ◽  
Branchiostoma Lanceolatum ◽  
Saturated Solutions

Larvae of Branchiostoma lanceolatum (Pallas), of a late pre-metamorphosis stage and characterized by a bright fluorescent green around the ilio-colonic ring, were taken in the Plymouth area plankton in August 1965.Adults were kept in 0.04% thiouracil to determine the general effect at this concentration. It was lethal over a period of weeks.The larvae were kept in the dark at a constant temperature of 10° C, individu-ally or in pairs, in 0.04%, 0.02%, 0.01%, 0.005% and 0.0025% thiouracil, in saturated solutions and suspensions of thyroxine and triiodothyronine, and in ordinary sea water. Solutions were changed weekly. The flagellate Dunaliella primolecta Butcher was supplied as food.All the larvae metamorphosed at approximately the same time and rate, two exceptions being that 0.04% thiouracil was a more obviously toxic concentration and the thyroxine and triiodothyronine larvae were rather more precocious in their metamorphosis.It is suggested that metamorphosis is a ‘triggered’ process and is self-sustaining. Thus once it has begun it cannot be delayed or accelerated significantly. All the larvae caught were at a stage when this ‘triggering’ had been released.It is considered possible that the metabolism of the larva and the initiation of metamorphosis is controlled by a secretion of the club-shaped gland.INTRODUCTIONThe position of the amphioxides larva has already been discussed (Wick-stead, 1964). No clear demarcation could be made between the usual type of acraniate larva and amphioxides. It was suggested that the amphioxides was a giant larva, a phenomenon not uncommon in oceanic plankton.IntroductionThe position of the amphioxides larva has already been discussed (Wickstead, 1964).

On Critical Phenomena of Saturated Solutions in Ternary Systems

1953 ◽  
Vol 57 (6) ◽  
pp. 581-583 ◽  
Author(s):  
C. A. Van Gunst ◽  
F. E. C. Scheffer ◽  
G. A. M. Diepen
Keyword(s):  
Critical Phenomena ◽  
Ternary Systems ◽  
Saturated Solutions

Corrosion of Brass in Sea Water

1919 ◽  
Vol 87 (2257supp) ◽  
pp. 211-211
Author(s):  
Paul T. Bruhl
Keyword(s):  
Sea Water
Sign in / Sign up

Export Citation Format

Share Document