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Questions related from Fa Najafi
i was reading about response factors in GC and i encountered the term area count, I was wondering if anyone can explain it to me, i have a general idea about the meaning but i'm not sure. does...
31 March 2020 8,046 1 View
I've tested a variety of reagents for the synthesis of a compound and found one that has never been used before and yields a good product. after my experiments i did some research and came across...
05 September 2018 5,858 3 View
sorptivity is defined as the capacity of soil to absorb or desorb water by capillarity. but what does higher sorptivity mean? does it mean the part of infiltartion that depends on capillarity...
31 July 2018 4,604 4 View
I need to know the Sulfur content of one of my products, i've seen almost all articles use Elemental analysis (CHNS) for this particular compound ,but right now i have easier access to EDX, so i...
02 March 2018 9,388 3 View
I took a sample for BET analysis, and I know that the langmuir surface area is higher because it's the monolayer adsorption , but how much difference is normal/ acceptable? because in my sample...
11 December 2017 4,177 3 View
Hello everyone i synthesized polyaniline sulfate using Ammonium persulfate and H2SO4. from the literature i know that the Pani salt should be green, my product is a very dark green, almost...
30 October 2017 5,297 8 View
After working with phenol what is the best way to clean the glassware contaminated with Phenol? is neutralizing them with 1M NaOH a good idea?
01 October 2017 799 2 View
I vacuum distilled my aniline a while ago but now it has a slight yellow tint to it, i want to use it for polymerization. is it still usable? i would distill it again, but my vacuum system needs...
23 September 2017 5,409 10 View
I want to check the purity of one of my solvents, aside from determining boiling point ,what other methods can i use? i'm mostly looking for simple methods.thanks in advance.
03 July 2017 2,133 3 View
i have some old para toluenesulfonic acid (it has a a very slight pink tint to it ) , i was wondering if someone can tell me how can i recrystallize it?thanks in advance
06 May 2017 1,300 3 View
I was wondering if hydroxy terminated Poly(ethylene oxide) can become active again and be used in further polymerization reactions (specially anionic polymerization) to form a block copolymer?
20 October 2016 4,367 3 View
