What is the eutectic compositions and eutectic temperatures of various salts and sugars in water? Can I get some references where these are tabulated?
As per second law of thermodynamics, all of the heat added to a system cannot be used to do useful work. Also, another version of second law of thermodynamics states that entropy of a system...
08 September 2019 4,875 11 View
I want to calculate cloud point temperature and pour point temperature for crude oil samples based on black oil properties of crude oil like density, viscosity, bubble point pressure etc. and...
06 July 2019 680 3 View
A converging nozzle increases the flow velocity and decreases the static pressure as per Bernoulli equation. Can a liquid flow through a converging nozzle result in static pressure below the...
06 July 2018 2,722 6 View
Cyclopropane is a non-polar hydrocarbon. Why is it soluble in polar solvents like alcohols and ethers? Is it also soluble in water? Is it more soluble in water as compared to hydrogen sulfide?
02 March 2018 5,478 4 View
We are pumping liquid through a pipe. After a pipe length, the flow area of pipe is reduced. As per bernoulli's equation, the velocity of flow will increase and pressure will decrease. In case the...
09 October 2017 3,894 1 View
Freezing point of eutectic NaCl brine is -21 C. How is the freezing point temperature effected by presence of organic compounds like methane, ethane and propane and compounds like H2S and CO2? At...
01 January 1970 5,541 3 View
Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...
09 August 2024 5,444 7 View
I have used Prussian blue nanoparticles as a redox couple. The PBNPs have been made using only one salt precursor. Also, during scan rate studies, a small oxidation peak can be consistently found...
31 July 2024 9,697 0 View
After deprotection of the tert-butyl ester to generate the carboxylic acid in chloroform with TFA, my compound‘s pyridine moiety forms a TFacetate ammonium salt (small molecule drug, not a...
29 July 2024 9,753 3 View
I have multiple small samples of grass pollen with anthers. I want to find a method to identify concentrations of proteins, lipids, and other various elements for these samples. any suggestions?
28 July 2024 5,331 1 View
I have been looking for the principle of Cysteine-carbazole-sulfuric acid reaction in research papers and books, but couldn't find it. This reaction is mainly used for the quantification of...
23 July 2024 3,891 0 View
"The Correlation between Nutrition and Transport Mechanism under Abiotic Stress in Plants: A Comprehensive Review" by Muhammad Saleem, Jianhua Zhang, Muhammad Qasim, Rashid Iqbal, and Li Song,...
23 July 2024 9,109 0 View
I want to predict the DAR ratio based on the number of cys available for conjugation to Cys residue. I use Ellman's assay to predict the concentration of Cys after TCEP reduction. I gain a...
02 July 2024 612 6 View
I need to do TEM analysis for my Polyaniline emeraldine salt form. May I know which solvent is appropriate for preparing TEM sample?
25 June 2024 9,086 3 View
I am working on an acetyltransferase that is highly unstable. Its pI is 6.65, and its molecular weight is around 18 kDa. The protein elutes at 1M imidazole and begins to precipitate immediately...
19 June 2024 2,590 0 View
Dear all, For higher biomass for saccharomyces cerevisiae which media is suitable in shake flask? 1. YPD media 2. Basal salt media and what is the optimum C/N ratio ( 5:1 /10:1). Thanks &...
18 June 2024 2,106 0 View