Hi, how can we know what is the chemical reaction that happened if we mix:
NH4OH + Ethylenediaminetetraacetic acid (EDTA) + ZnSO4 +water +trisodiumcitrate ?
If you want to answer as an academic !!!!!!, you should be more polite, otherwise, I do not need your participation.Anyway, thank you.
In the lands with ancient plain sediments, the courses of rivers change dramatically over time for easy movement and the arrival of rivers to an advanced geomorphic stage. Are there mathematical...
02 January 2021 3,098 3 View
What are the methods of detecting the ancient streams of rivers using remote sensing, and do the satellite images achieve the possibility of detecting and tracking the change.
02 January 2021 5,213 4 View
Researchers go through lengths to convey technical information to both fellow academics and the public. Many struggle with the tools and technologies to effectively make this happen, and others...
20 April 2020 9,049 17 View
Can author published his or her old prospective study in a peer review journal? For example 20 years ago.
13 February 2020 9,717 5 View
I am working on NiPam polymerization and I am unsure of the necessary ratio of TEMED necessary to achieve the correct polymerization ratio for the reaction to occur. I am unable to use nitrogen...
12 November 2019 4,499 3 View
Dear researchers, Kindly, I have micro structures of high speed steel grades. How to make a quantitative analysis of the size and density of carbides found in the micro structures. many thanks
10 November 2018 9,838 0 View
I wish to write an article in a smart city.
09 October 2018 6,197 1 View
Dear colleagues, i have got the attached results in the following picture. may you help me to explain the change, please? X-ray diffraction was used to identify phases, quantify changes in the...
04 May 2018 1,259 6 View
Greetings, Dear Colleagues, Can I obtain the tensile strength, toughness and yield strength of an alloy if I have the shear, young and bulk modulus or the stress- strain curve of the alloy Many thanks
04 May 2018 1,158 3 View
A man builds a house with all 4 sides facing south. A bear walks past the house. What color is the bear?
02 March 2018 6,606 2 View
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
I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...
03 March 2021 3,661 2 View
I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...
02 March 2021 4,443 2 View
Anyone can recommend any books on such topics? Thanks in advance.
02 March 2021 8,457 2 View
(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
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
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
I am doing a acid and a chiral amino alcohol reaction using DCC and HOBT in DCM or THF? Can anyone suggest me how to remove DCU and HOBT from a reaction mixture??
28 February 2021 2,153 1 View
hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...
27 February 2021 3,882 3 View