I prepared 2 and 3 molar sodium sulfate for electrochemical studies . But during the studies crystals formed in the solution and I canot follow up the studies. What is the reason ? Is it because of supersaturation?
The solubility of Anhydrous Sodium Sulfate (did you use anhydrous quality??) in water at 25 oC is 28,1 g/100 ml.
A 2 M (2F) solution contains approx. 284 g/l or 28,4 g/100 ml. A 3M solution 42,6 g/100ml. I would expect crystallization..
Yes sir , I used the anhydrous quality.
You may want to check:
https://www.researchgate.net/post/Does_anyone_know_why_Sodium_Sulfate_in_a_solution_would_precipitate_in_a_mineral_media_in_room_temperature_15-20_degree_Celsius
I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...
09 August 2024 9,621 0 View
Pig slurry is rich in major and minor nutrients. Is there any way to improve / Enrich its manure quality to be used in agriculture organically ? please share your knowledge.
09 August 2024 5,605 2 View
Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...
07 August 2024 269 3 View
Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...
07 August 2024 3,218 4 View
Hi How can this equation Ln(LA) = 1.038 + 0.89 ln(X) be applied to calculate the leaf area of a tomato? Can you explain with an example and what is the substitution of Ln and ln?
06 August 2024 2,508 2 View
I aim to be as skeptical as possible regarding whether a pair of orthologous genes results in the same phenotype in their different but related bacterial organisms under similar environmental...
05 August 2024 6,787 4 View
I ran a SDS-page of a bacterial lysate and I want to quantify protein concentration in a specific band. I was thinking of using a standards ladder or make some standards are different...
05 August 2024 9,805 3 View
XRD Analysis is showing only Calcium carbonate. It is not showing other compounds. Can anyone help me get the other compounds
04 August 2024 3,019 3 View
I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...
03 August 2024 4,725 2 View
Machine learning (ML) has shown great potential in predicting the compressive strength of concrete, an important property for structural engineering. However, its practical application comes with...
03 August 2024 2,546 2 View
Hello everyone, A collaborator sent us his protocol in order to be able to use his immunohistochemistry kits. But one step contains PBS + 0.3% H2O2 + 0.1% sodium azide. Knowing the dangerousness...
23 July 2024 6,314 3 View
I need to make a stock solution for radioisotopic incubations of freshwater sediments to study dark primary productivity but I have some confusion as to how I calculate the concentration of 14C...
15 July 2024 5,898 0 View
During the release test of Amphotericin B using 1% Tween 80, i observed three peaks even in the standard. The first peak consistently yielded results around 500%, while the other peaks showed...
08 July 2024 1,330 0 View
I did some column tests in my lab where I needed to detect the DOC fractions using LC-OCD. For the abiotic columns I used sodium azide to restrict the biofilm formation. I did LC-OCD to detect the...
07 July 2024 468 0 View
Hello All, I've been facing difficulty in executing geometry optimization of a sodium polyanionic phosphate (Na4Fe3P4O15) crystal in CASTEP (please find the input and output files attached). When...
07 July 2024 8,626 2 View
Can this pH of 8 be due to the presence of other substances? Or do I have an error somewhere in the analysis? Thank you!
26 June 2024 9,093 4 View
I have been trying to grow Nicotiana benthamiana via tissue culture. I used ethanol and sodium hypochlorite with different concentrations and time duration for seeds sterilization and lastly...
18 June 2024 1,756 3 View
I want to replicate the third step, but there seems to be no reaction in an alkaline environment. However, sodium hydroxide is used in the literature. Should I switch to an acidic environment
05 June 2024 9,358 1 View
I'd like a powdered form of MCDB 131 Medium with sodium bicarbonate added, and I've noticed that not only is the powder form of this medium difficult to find with NaHCO3 already included, but the...
28 May 2024 1,631 2 View
Hello. I am here looking for help with the NO radical scavenging assay. I was working on setting up the assay with sodium nitroprusside and the Griess reagent as they do in most works. However, I...
27 May 2024 5,013 1 View