How is the interfacial tension of liquid-liquid system measured by pendant drop method?

It is known that the surface/interfacial tension tension can be measured by pendant drop method and the following equation: IFT=deltaro*g*de^2/H. 1/H is function of ds/de (1/H=f(ds/de)). I used...

01 February 2018 5,793 10 View

Is ionization of sulfur dioxide and hydrogen cyanide in water significant?

03 April 2017 994 6 View

Why do the strange behaviour exist at the interface of tetrahydrofuran/2-propanol mixture?

08 September 2016 4,996 1 View

Does any equation exist for describing the fugacity coefficient of surface phase at high pressures?

02 March 2016 9,866 5 View

Why does the interfacial tension of systems containing water/immiscible liquid (for example water/octane) increase by increasing the pressure?

02 March 2015 4,424 3 View

Why does the solubility of liquid octane in water decrease by increasing the pressure of system at constant temperature?

The solubility of liquid octane in water decreases by increasing the pressure of system at constant temperature although it is expected that solubility of liquid octane in water increases by...

02 March 2015 3,568 10 View

Can you name a book in which the thermodynamic of interface a good introduction into the thermodynamics of interfaces exists?

I search for a book in which the thermodynamics of interfaces is well explained.

02 March 2015 5,728 14 View

Which one of the SAFT EOSs is good for modeling both vapor and liquid phases?

I do calculations with sPC-SAFT EOS for CO2/H2O system. It performed good for liquid but the results of vapor phase were not good.

11 December 2014 7,912 6 View

Does any model exist which can support the viscosity and thermal conductivity of fluids up to very high pressures?

It is known that many viscosity and thermal conductivity models are only applicable for atmospheric and saturation conditions. On the other hand, very high pressures (higher than 500 bar) is a...

01 January 1970 8,610 3 View

Do we have any criteria whose value shows how much a liquid solution and its interface deviate from the ideal state?

In thermodynamics, it is known that residual properties show how much a mixture deviates from the ideal state. Do we have other criteria for this? Do we have any criteria by which we can recognize...

01 January 1970 6,715 2 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View