All Questions
Tagged with surfactants organic-chemistry
14 questions
3
votes
1
answer
834
views
Is it possible to store a Tween 80 stock solution?
I am making a stock solution of Tween 80 (0.05 % w/v) and each experiment requires just 15 ml of the stock solution. Is it possible to make a large batch (about 100 ml) and store it somewhere? If so, ...
- 51
1
vote
0
answers
97
views
Why is aqueous solution of lauyl glucoside alkaline?
What is the reaction of dissociation of lauryl glucoside? It's aqueous solution pH is much higher than 7, it's definately alkaline. Why is that? It's nonionic surfactant and as far as I know it only ...
2
votes
0
answers
891
views
Is lauryl glucoside stable in low pH?
I wish to use lauryl glucoside in the solution of citric acid. I tried to add it to 5% w/w solution of citric acid in water but after about 24h in the concoction which was previously clear I observed ...
4
votes
1
answer
597
views
Biodegrability of straight chain and branched chain detergents
From NCERT Chemistry: Textbook for class XII, Part II [1, p. 461]:
Main problem that appears in the use of detergents is that if their hydrocarbon chain is highly branched, then bacteria cannot ...
- 594
1
vote
0
answers
36
views
Do some alkyloxiranes possess surfactant properties?
As an example, i notice that decyloxirane has a long non-polar "tail" and a tiny "head" that features two polar bonds. This molecule looks not so different from a common soap to me....
- 139
2
votes
1
answer
4k
views
Is an alcohol-based spray cleaner ok for cleaning an aluminum heat exchanger?
Simple alcohols such as ethanol can, apparently, corrode aluminum. However, this corrosion reaction seems to be very slow at room temperature and below. Is an ethanol based, non-foaming spray cleaner, ...
- 139
1
vote
0
answers
881
views
Benzalkonium chloride breakdown time
I wonder if and how long (approximately) it will take for benzalkonium chloride (shown above; $n = 8, 10, 12, 14, 16, 18$) to breakdown (degrade fully or partly) in a closed water loop with continuous ...
- 11
1
vote
0
answers
42
views
Microorganism preventative solution safe for using on a roof and will last in the sun
Information is scarce in the roof cleaning industry and the big guys are making a killing selling chemicals that are harmful to the person using it and everything around the home. I would like to find ...
13
votes
2
answers
5k
views
Soap and rain water, why does it not rinse off?
I am in Papua New Guinea at the moment, where rain water harvesting is the most common way of getting water.
When washing hands, the soap feels hard to rinse off, and my skin feels "greasy".
I read ...
- 231
3
votes
1
answer
2k
views
What is the difference between the roles of a surfactant and a stabilizer in the process of nanocrystal growth?
The crystals that I am synthesizing use two different stabilizers CTAB and SDS, but they say one is used as a surfactant and since they are both stabilizers what is the need for both?
- 181
1
vote
2
answers
9k
views
What are the main differences of CTAB and DTAB surfactants? And what are practical applications of them?
Just doing a little bit of research of both surfactants but I can't seem to find too much online about them. Hopefully you guys can help out!
5
votes
1
answer
582
views
Dyes that can stain oil and water
Is there such a thing as a dye that can stain both oil and water? In other words, does anyone know of an amphiphilic dye? Maybe a surfactant that is also a pretty shade of blue? Or maybe turn one ...
- 209
2
votes
0
answers
540
views
Why does the reaction of chlorosulfonic acid (colorless) and 1-dodecanol (colorless) produces a deep dark-red-colored solution?
I was wondering if anyone had any insight as to why the reaction of chlorosulfonic acid (colorless) and 1-dodecanol (colorless) produces a deep dark-red-colored solution? The reaction should give ...
- 281
3
votes
3
answers
43k
views
Reaction of soap with water
I've seen it many times... Why does soap become foam-like when it reacts with water (moisture) or when we touch it with wet hands.. What compound actually causes this physical change? And why does ...
user491