Questions tagged [solvents]

A liquid, solid, or gas that dissolves another solid, liquid, or gaseous solute, resulting in a solution that is soluble in a certain volume of solvent at a specified temperature.

Filter by
Sorted by
Tagged with
0
votes
0answers
16 views

Does any body know which organic solvent can solute LiOH? [on hold]

Does any body know which organic solvent can solute LiOH? Very very very thanks for your answer ><
0
votes
0answers
35 views

Why is acetaminophen insoluble in dichloromethane? [on hold]

It looks like aspirin and acetaminophen can participate in hydrogen-bonding due to their -OH groups and caffeine is a weak hydrogen-bond acceptor because of the nitrogen in its ring. Why is ...
0
votes
1answer
24 views

Ingredients for cleaning optical elements

I have recently purchased a cleaning solution for precision optics which has the following ingredients (amounts were not specified): Ethyl Alcohol Methylethylketon Aqua Diethyl Ether Isopropyl ...
2
votes
1answer
27 views

Why polar aprotic solvents don't surround negatively charged nucleophiles?

Protic solvents can form a tight shell around a nucleophile. But what's stopping any polar solvent from doing so? Shouldn't a polar solvent surround negatively charged $\ce{F-}$ with its partially ...
0
votes
1answer
33 views

Suitable safe cleaning solution for aliphatic urethane

I am looking for a suitable cleaning solution for a sprayed on coating that is an acrylic aliphatic urethane. My end goal would ideally be something that can neutralize rust, whiten and brighten the ...
0
votes
1answer
50 views

How does acetone help to make a liquid cleaner stronger? [closed]

Acetone, as a solvent, seems to behave somewhat different than other solvents. It seems to solve things other unpolar solvents do not. For example, I have two cleaner sprays from the same brand, and ...
0
votes
2answers
49 views

Methanol mixed with varsol [closed]

If I have varsol in a tank and methanol is put into the same tank will methanol rise to the top or will it separate? Or will it mix together ?
3
votes
1answer
558 views

What classifies as a solvent/base in SN1, SN2, E1, and E2 reactions?

I need to clarify some terminology for an intro to organic chem class. We are studying substitution and elimination reactions and it has not been made clear what exactly these terms describe. For ...
1
vote
0answers
16 views

Organic solvent for cleaning autosampler syringe

I work in a laboratory where gas chromatography is used extensively. We handle phthalates. What are the possible wash solvent for autosampler syringe? I've been using acetone.
4
votes
2answers
102 views

Are hydroxides soluble in each other?

Let's say I have molten potassium hydroxide and then I add some Calcium hydroxide. I imagine, since there are hydroxide groups floating around, it would be energetically neutral for the calcium ions ...
0
votes
0answers
19 views

What solvents can solve aromatic urethane resins?

Do you have any information about chemical resistance of hexa-functional aromatic urethane acrylate? I want to know what solvents can solve aromatic urethane resins.
0
votes
1answer
870 views

Solvents adequate for dissolving overheated polyethylene terephthalate glycol-modified (PETG) residue?

I work in 3D printing. One of the materials we use is polyethylene terephthalate glycol-modified, or PETG. It is a pretty good material, both in strength and appearance. It is melted and pushed ...
3
votes
1answer
67 views

Which solvent is good for using SU-8 particle in Optical tweezers?

I'm studying Optical tweezers. I've used Polystyrene for samples. Nowadays, I've got SU-8 pillar. I wanna use that for sample, but its density is heavier than water. I can't use that. So I wanna know ...
0
votes
0answers
30 views

Will acetone dissolve the structure of Spandex?

We are trying to remove rubber from spandex, it's been super-glued on. We know that acetone will dissolve superglue, but we're unsure if acetone will harm Spandex. Anyone that can help us, your input ...
-2
votes
1answer
34 views

Remineralization of ro water [closed]

Hello we are trying to prepare a solvent based solution of different kinds of minerals which can be added to reverse osmosis permeate water so that some of the essential minerals can be added back to ...
1
vote
2answers
50 views

Calculating amount of base needed to achieve a specific pH in a mixed ethanol-water solvent

I'm looking for some way to calculate how much base I will need to add to an unbuffered solvent consisting of a mixture of ethanol and water in order to basify it to a specific reading (10) on an a pH ...
3
votes
1answer
3k views

Best way to dissolve/emulsify beeswax and carnauba wax in water-based solution

What I can use to dissolve beeswax and carnauba wax and keep it in an aqueous solution? I do not want to use ethanol or acetone as they are too harsh. I am adding about $\pu{5\%}$ wax to a $\pu{16oz}$...
0
votes
0answers
22 views

Electrolysis of a calcium salt in polar aprotic solvent

If i found a calcium salt that is soluble in acetone or ethyl acetate, which are polar aprotic solvents, and attempted electrolysis, what would happen? Since polar aprotic solvents are used in metal-...
1
vote
0answers
30 views

In situ preparation of Potassium Tert-Butoxide

I am attempting to prepare potassium tert-butoxide. I was going to suspend anhydrous toluene and anhydrous tert-butanol, dissolve (reflux) the potassium metal (pure), then distill the excess tert-...
2
votes
1answer
212 views

What is dielectric constant and how does it explain the reason why water is one of the best solvents

When i was reading solublity of ionic compounds,they mentioned that polar compunds are fairly soluble in polar solvents and water is better solvent due its high dielectric constant.Can anybody explain ...
0
votes
1answer
119 views

Does ethanol “decompose” or “remove” phosgene from chloroform?

A question I was asked was: "Why is ethanol added to chloroform bottles?". I know that chloroform can be slowly converted to poisonous phosgene gas, and that ethanol is added to prevent phosgene ...
1
vote
0answers
22 views

Investigating the effect of solvents (protic vs aprotic) on the alkaline hydrolysis of ethyl acetate using a conductivity meter

What different areas about solvents can be explored with the conductivities collected of the alkaline hydrolysis of ethyl acetate in propanone and ethanol? $$\ce{CH3COOC2H5 + NaOH -> CH3COONa + ...
1
vote
0answers
22 views

Investigating the effect of solvents on the alkaline hydrolysis of ethyl acetate

In the following reaction, I believe a polar aprotic solvent like propanone will be more favorable since the partial negative charge on the oxygen atom in propanone will attract the sodium ion from ...
4
votes
1answer
56 views

What chemical could dissolve low-density polyethylene?

What chemical could dissolve plastic aside from acetone? Preferably, low-cost and environmentally friendly. Any suggestions would be helpful. I'm targeting for thin plastic (low-density polyethylene)....
2
votes
0answers
31 views

Is sodium acrylate soluble in ethanol?

I am trying to make sodium acrylate by neutralizing acrylic acid with sodium hydroxide. I further want to photo-pattern it, which requires the addition of photoinitiator to sodium acrylate. The ...
4
votes
1answer
411 views

Using Nanodrop for UV/Vis analysis of compounds at limited amounts [closed]

I am no chemist, but a biologist who knows some biochemistry. I have some natural extracts at limited quantity, which I have been evaluating using mainly GC-MS. These extracts are rich in liquid ...
8
votes
1answer
9k views

What organic solvents are suitable to use with potassium permanganate?

I'm attempting to oxidize a substance with potassium permanganate and I was wondering what organic solvents I have at my disposal. The compound is soluble in chloroform and ethanol, but obviously ...
1
vote
0answers
190 views

Polar Protic and Aprotic Solvents

I know $\mathrm{S_N2}$ is favored polar aprotic solvents, which means that they may have hydrogens on them somewhere, but they lack $\ce{O-H}$ or $\ce{N-H}$ bonds, and therefore cannot hydrogen bond ...
2
votes
3answers
3k views

Dry ice and acetone

In my organic chemistry class there are several reactions that I’ve been told are generally conducted at $\pu{−78^\circ C}$, which is apparently also the temperature of dry ice in acetone. This is ...
4
votes
0answers
60 views

How good is 2-Butoxyethanol as a replacement for acetone?

I have recently bought a bottle of acetone from my local hardware store. When I opened the bottle, I was surprised about the absence of the strong smell of acetone. Only then I discovered the smaller ...
0
votes
0answers
30 views

How do I remove traces of denatured alcohol?

Accidentally cleaned nylon plastic with denatured alcohol. What is the best way to insure I've removed all traces of it? btw, I'm not a chemist so if you could dumb-down your answer that would be ...
4
votes
1answer
104 views

Qualitative Comparisons of Dielectric Constants of Organic Solvents

This question is inspired by the discussion around this earlier question. It is relatively simple to do a qualitative comparison of the polarities of different molecules (for example by analyzing the ...
3
votes
0answers
34 views

Acetic Acid type of solvent

I want to ask a question about polar/non-polar (a)protic solvents. The following information was given to me in the lecture hall today regarding solvents in organic chemistry. I recall the ...
4
votes
1answer
2k views

Why Benzene is a good solvent even while it is not polar

Consider for a moment, ether, THF, benzene and hexane. Why is the solubility of many organics in these solvents in the following order THF > ether / benzene > hexane What makes benzene a good ...
0
votes
1answer
147 views

What polymer can be dissolved in ethanol and is insoluble in water?

I need a polymer with parameters noted above. How to determine the solubility theoretically? Hansen/Hildebrand solubility parameters? Wypych is not the ultimate solution...
0
votes
0answers
53 views

How to effectively get rid of 2-propanol acetate vapors and smell

I need to get rid of 2-propanol acetate vapors and its smell and need some chemistry help. Some possibilities I came up with: soap and water to rinse surfaces because soap might help increase its ...
6
votes
2answers
92 views

Is there a quantitative test/analysis technique that can determine if some chloroform has degraded into phosgene?

Before I go to use any chemical that I've had in storage for a while, I try to check if it's degraded into something else (e.g.: checking the $\ce{H2O}$ content of $\ce{H2O2}$, checking for $\ce{H2O2}$...
5
votes
2answers
556 views

Proton NMR chemical shift of water peak in different solvents

Why does the water peak appear at different chemical shift values (ppm) in different solvents in proton NMR spectra? For example, the water peak in DMSO-d6 appears at nearly 3.33 ppm, but the same ...
3
votes
1answer
276 views

Solvent for tire rubber

I want to apply tire rubber on surfaces, for various reasons - including protection against water. I think of tire rubber, as it is so widely available - helping in reducing pollution (infinitesimally)...
4
votes
0answers
61 views

Why mixing water with ethanol produces heat energy? [closed]

Sorry if I'm asking something stupid but I'm trying to understand where this energy gets from. As far as I could find, it is not a reaction as both chemicals left unchanged, so it might have something ...
3
votes
2answers
789 views

Solubility of Iodine in Some Organic Solvents

The solubilities of iodine in $\ce{CCl4,n-Hex,Et2O,PhCH3}$ were given respectively as 19 g/kg, 13 g/kg, 337 g/kg, and 182 g/kg. These results puzzle me for the following reasons: 1) Iodine, being a ...
0
votes
2answers
56 views

How do I calculate the total volume when i mix 1000 kg of glucose with 5000 L of water

I want to know how to calculate the resulting volume when I mix 1000 kg of glucose into 5000 L of water. How does the calculation change if I'm mixing NaCl into the water, instead of glucose? Or ...
1
vote
1answer
47 views

What does it mean by 'the residue was taken up in solvent' in synthesis protocol?

The below is a synthetic protocol I need to perform: N-trifluoro acetoxy succinimide Synthesis Trifluoroacetic acid anhydride was added to N-hydroxysuccinimide at 0 °C. The reaction was ...
2
votes
1answer
334 views

Does glass adsorb methanol to an exceptional extent?

Does (borosilicate) glass adsorb methanol to an exceptional extent? We are doing vapor density measurements of organic solvents using a microbalance and a sealed glass sphere. Other polar molecules ...
7
votes
3answers
725 views

Can Liquid CO₂ dissolve plastic

I know that subcritical and supercritical $\ce{CO2}$ are excellent solvents. I've seen some examples of plastics being damaged by the $\ce{CO2}$ being impregnated into the plastic at very high ...
-1
votes
1answer
100 views

Solvent for caffeine extraction [closed]

Can anybody please help me find a way to separate caffeine from coffee that uses a solvent other than DCM, ethyl acetate, or diethyl ether? This an experiment for science class, but I don't have ...
4
votes
1answer
191 views

Miscibility of Hexane and Ethanol (Anhydrous vs 96%)

In my lab, I mixed 8:2 (mass:mass) of Hexane:Ethanol (Hexane: 0 ppm of water content, ...
2
votes
0answers
123 views

What is the principle of “scrubbing” in liquid extraction or solvent extraction?

There are many steps in solvent extraction: Extraction Scrubbing Back extraction I understand the 1st and the 3rd. What is the principle of scrubbing? Is it just washing the organic phase? How ...
0
votes
0answers
84 views

Can a solute be physically filtered out of a solvent?

Suppose that I have a substance dissolved in water. I then pour the solution into a filter. The filter's pores are large enough to allow the passage of water, but not the passage of the substance. In ...
15
votes
1answer
1k views

How does WD-40 remove rust?

One of the often-touted uses of WD-40 is that it "dissolves rust". The official website states that WD-40 "breaks down the bonds between metal and rust". I can't understand how this would work, since ...