I want to change the silver color of Mercury to constant red color which doesn't change with additions of acids
Be careful it is a scam.
What it is the difference between Laccase enzyme and Lignin degrading enzyme
31 December 2018 10,027 0 View
I want to to calculate the percentage of atomic composition for concrete like that: H=2, O=50, Na=15
11 December 2018 4,970 3 View
I have searched about any standards of porosity measurement for the hardened concrete, but I didn't find any thing.
08 September 2018 3,350 3 View
I want to calculate the degree of serpentinization in more than one type of serpentine
08 September 2018 477 0 View
I didn't find any papers explaining the relation between crushing value of aggregate and compressive strength of concrete
05 June 2018 2,347 15 View
I want references about the relation between porosity and void ratio in concrete.
04 May 2018 5,441 6 View
what is the interpretation of presence of CH3 functional group in the IR in treated silicate material with NaOH although the ore (original material before treating) did not contain any carbon ?
03 April 2018 6,745 6 View
This is an SEM image of concrete and I want to know if I indicated the components right or wrong?
03 April 2018 1,009 0 View
I want papers about ACV is indicating method for aggregate strength
01 February 2018 5,270 7 View
I want to theoretically calculate the void ratio knowing the porosity and water absorption?....except for ASTM CODES?
01 February 2018 4,049 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
I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...
02 March 2021 7,626 1 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
In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...
01 March 2021 2,207 3 View
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
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
Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...
25 February 2021 7,493 6 View
I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...
25 February 2021 2,225 5 View