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.

learn more… | top users | synonyms

0
votes
0answers
12 views

Why even the most volatile solvents leave a residue after evaporating?

After a solvent evaporates off of a surface there's always some residue left in the form of a strain. Why it is the case even for highly volatile solvents such as acetone, toluene etc?
1
vote
1answer
16 views

Suggestions for solvents capable of efficiently performing alpha-bromination and nucleophilic substitutions

We performed the one-pot preparation of bupropion in class where the bromination of the carbon adjacent to the carbonyl group was performed using DCM as solvent, and upon completion the solvent was ...
2
votes
1answer
28 views

What is inhibiting polystyrene's ability to dissolve in traditional solvents like ethanol or acetone?

My friend and I have been struggling with this problem for a couple days. Because polystyrene has a similar structure to many plastics, we assumed that it would dissolve in acetone. However, after ...
-2
votes
0answers
53 views

How can I dissolve monolaurin/glycerol monolaurate?

I am trying to prepare a solution of glycerol monolaurate (GML) based on this study in which GML was dissolved in ethanol to a final concentration of 25 μg/mL. However I would not like to use ethanol ...
2
votes
0answers
54 views

What would be a safe/good surfactant for ultrasonic cleaning vinyl records + distilled water and isopropyl alcohol

Title pretty much says it all besides the type of records I believe are pvc (60s - current, someone correct me if there may be other materials but I absolutely don't have any shellac records) and I ...
4
votes
1answer
103 views

How to treat pressure in computational chemistry?

I have a reaction where a gas at high pressure and a solution with all kinds of species is involved. How do I take pressure correctly into account to get reasonable values for $G$? Do I calculate ...
1
vote
0answers
27 views

Why does adding PBS to a lipid+propylene glycol solution cause the lipid to precipitate?

I am trying to create an aqueous phospholipid suspension using ~50 mg of 1,2-dibehenoyl-sn-glycero-3-phosphocholine (DBPC), 13 mL of propylene glycol (PG), and 72 mL of phosphate-buffered saline ...
1
vote
0answers
32 views

Production of acetone from egg shells and vinegar

I learned from these wiki pages that acetone can be produced from calcium acetate, which can be produced by the reaction of eggshells and vinegar. However, I couldn't find the required temperature. ...
0
votes
0answers
6 views

Silk Fibroin in Trifluoroacetic acid polymerized by electrical stimulus possible?

I bought a trifluoroacetic acid from sigma that is somehow not allowing me to proceed with electrospinning. Briefly what is happening: - 4% silk fibroin in formic acid = no problem electrospinning; - ...
4
votes
1answer
38 views

Trifluoroacetic acid, Formic acid and dichloromethane

I am working in a small lab (in a small company) with very poor conditions, which I have to improve (for example: no sink , I have to wash the glassware in the bathroom). My organic chemistry is very ...
3
votes
0answers
43 views

Separate toluene from acetone and isopropyl alcohol

I found a Cellulose Thinner, that is made of toluene 60-80%, acetone 10-20%, and 2-propanol 5-10%. As acetone and 2-propanol are water soluble, but toluene isn't, would it be possible to just add a ...
1
vote
0answers
23 views

Does dissolving a solute lowers the activation energy of a reaction of that solute?

I'm formulating a reason why the use of solvents in some reactants are preferred rather then mixing just the pure components together. My gut feeling tells me that it lowers the activation energy of ...
0
votes
0answers
20 views

What solvents work on aloe vera?

I'm looking for a solvent which can fully dissolve dried aloe vera gel. I assume the main problem is the constituent polysaccharides.
0
votes
0answers
36 views

Remove aceton from denatured alcohol

I have bought a bottle of denatured alcohol. On the web I've found these solutions typically contain the following: $85\%$ ethanol $10\%$ water $3\%$ methanol $1\%$ aceton $1\%$ pyridine I would ...
0
votes
1answer
62 views

Does adding mass to a liquid (not water) increase the volume

The Question sounds stupid but i have a legit problem I mixed 1000 mL coconut water and 225 g of agar-agar to make a coconut water [CW] agar. It gave me more than 1000 ml. the medium went beyond the ...
1
vote
0answers
28 views

What are the advantages of eutectic solvents over aqueous solutions for electroplating?

I'm trying to electrically strip lead contamination from aluminum. This answer suggests using a deep eutectic solvent (DES) as the conducting liquid for plating the lead onto a copper cathode. But ...
0
votes
0answers
23 views

How can I create a small pilot scaled vacuum distillation apparatus

I'm doing some research into building a small pilot scale distillation apparatus to separate ethanol dissolved essential oils from the ethanol solvent. I've run some experiments in a rotovape, but the ...
0
votes
0answers
32 views

Do neutral solvents besides water do something like irreversible hydrolysis?

Hydrolysis of some salts is irreversible. But while water is "special," there are plenty of other solvents of medium to low pH. I assume that if they can dissolve a salt, and they have free H ions, ...
4
votes
0answers
120 views

exchanging H2O in buffer for D2O - pH vs pD?

I have TBS pH 7.4 buffer that I am exchanging all the water out for D2O. How do I find out what the pD is after all the water is gone? I understand that pH meters don't work for deuterium, and it ...
3
votes
1answer
67 views

Why did my deep eutectic solvent solidify?

I'm finally getting around to beginning to test this deep eutectic electrolyte. I mixed choline chloride with urea in a 1:2 mole ratio in a glass container. It formed a sludge. I sealed the ...
1
vote
0answers
28 views

Non-destructive solvents for cyan-salts

What dissolves cyan-salts (NaCN and KCN) without destroying them the way water does via hydrolysis? I have to make my own cyan-salts, so they're somewhat precious to me. Every time I have to ...
1
vote
1answer
42 views

How to dissolve the build-up from a paraffin based oil?

I have a CNC lathes that use "oil" for cutting fluid during the machining of mostly metal materials. Typically a heavy paraffinic based cutting oil (petroleum distillate) is used during machining. ...
0
votes
0answers
69 views

Why aren't people pouring ethanol my unskinned chicken to remove excessive fat?

I see a lot of people putting cooked chicken thighs on paper towels to absorb the excessive fat. This gave me an idea: if you don't care about taste, why can't we rinse cooked chicken with ethanol and ...
3
votes
1answer
36 views

Which chemical should I use to wash soot precipitate from cast iron?

The soot deposition is quite strong (almost like graphite) and my iron object has a complicated shape with many grooves. Which chemical would dissolve the carbon without oxidizing the iron?
1
vote
0answers
76 views

The amount of the DMF in the Sonogashira coupling - why it is of importance?

I was looking for some protocols for Sonogashira coupling and have found that in many papers the amount of the DMF used is exactly 2 ml per mole of the substrate. Is there any reason for that? ...
1
vote
0answers
54 views

Understanding observations of dissolving surfactants in methanol, water and hexane combinations

I added various solvents to a shower gel product to see what would happen. The main surfactant ingredients in it are Methyl Gluceth 20, Sodium Laureth Sulfate, and Lauryl Glucoside. First I diluted ...
1
vote
1answer
58 views

Troubles with cinnemaldehyde extraction - A few general questions

I'm trying to do a cinnemaldehyde extraction. I've tried both a simple and a steam distillation. I'm using the video: [https://www.youtube.com/watch?v=bDoaPIKT_Xg] - as a guide. One of the main ...
2
votes
0answers
35 views

The effect of tetrahydrofuran solvent [closed]

We prepared the PhTeNa in situ from (PhTe)2 and sodium wire in THF. can we change the THF solvent by an other solvent having the same effect.
1
vote
1answer
68 views

Does storing a hygroscopic reagent in a bottle makes it prone to absorb humidity from the air trapped inside?

I've got a full bottle of 99,5% acetone, which I'd really like to keep it as dry as possible, though without using molecular sieves or other dessicants. Once I open the bottle for the first time, use ...
4
votes
0answers
88 views

How does the solvent determine if it's mono-bromination or tri-bromination?

In Phenol, the $-\ce{OH}$ group activates the benzene ring, making electrophilic substitution easier (bromine does not react with benzene alone). But why is it that the bromination (electrophilic ...
3
votes
0answers
113 views

Why anhydrous acetic acid is differentiating solvent?

Anhydrous acetic acid is differentiating solvent in which strong acids show different strength but water isn't. Why anhydrous acetic acid shows the strength of acids clearly, but water solvent cannot ...
3
votes
1answer
79 views

Does adsorption occur between liquids?

While reading a paper in a field other than chemistry, the author mentions a phenomena that he labelled "adsorption" and describes it as follows: ...I am told (though I do not know which liquids ...
1
vote
2answers
102 views

Are Organic Solvents used in Addition Reactions catalysts?

Say for example you are performing a halogenation reaction with dichloromethane (DCM) as the solvent: ethylene + chlorine $\stackrel{DCM}\longrightarrow$ 1,2-dichloroethane I have 2 questions: Is ...
-1
votes
1answer
54 views

how to store solvent in laboratory? [closed]

I am organising chemicals and solvents in laboratory... being less specific ( as it would a big list of chemicals to provide here in my questions)... I wanted to know... how can we arrange solvents in ...
0
votes
0answers
41 views

Electrical conductivity of mixed organic solvents

I have done some experiments about electrical conductivity values of mixed organic solvents and I met some problem about it. In the first two week after the solvents are mixed, the EC value is stable ...
4
votes
1answer
300 views

Replacement for cyclohexane

I am attempting to isolate pure iodine from kelp using the method described here but I do not have any way of possibly obtaining cyclohexane. I was wondering if any easier to obtain solvents would ...
3
votes
0answers
39 views

Which are the appropriate washing solvents for gas chromatography equipment?

I work in a laboratory where gas chromatography is used extensively. We handle terpenes and terpenoids (alcohols, ketones, and acetates derived from terpenes), organic solvents (acetone, acetonitrile, ...
3
votes
1answer
42 views

Is a supersaturated solution still a solution?

Given that a solution must be a homogenous mixture, and having crystallized solids at the bottom of a solution is most definitely not homogenous, can a supersaturated solution still be technically ...
2
votes
0answers
45 views

Alternative to water as solvent for lithium metaborate?

I want to prepare a sample of lithium metaborate ($\ce{LiBO2}$) and need to dissolve it for this purpose. The only solvents I found so far are water and ethanol. In ethanol, one cannot dissolve ...
1
vote
1answer
227 views

What are the non-aqueous solvents for sodium polyacrylate?

I am attempting to use sodium polyacrylate as a sodium transport mechanism in a sulfur-bromine cell. I can upset the sodium balance with sodium salts, but the contamination introduced by the ...
1
vote
1answer
2k views

How to reverse damage done by nail polish remover without acetone to a laptop keyboard?

Today I was trying to clean my laptop with a nail polish remover (ingredients: ethyl acetate, peg-40, hydrogenated castor oil, panthenol, parfum, d-limonene, geraniol, ci 26100, ci 60725). Not only it ...
4
votes
0answers
75 views

Dissolving ability of octane vs nonane on neoprene

I have been working with straight chain octane and nonane. The neoprene seals in some parts of the apparatus are allegedly far more vulnerable to the deleterious effects of octane than nonane - why? ...
0
votes
0answers
223 views

difference between solving and dissolving something

what is the difference between the terms 'solve' and 'dissolve'? up until now I have used the two terms interchangeably, not having any sound scientific definitions for each. I have thought them both ...
7
votes
2answers
2k views

Why do soft drinks fizz?

I know it has something to do with carbon dioxide, but what exactly happens and causes the characteristic sound we hear (especially after we shake the bottle)? How do we manage to dissolve a non-polar ...
2
votes
1answer
118 views

How to perform solvent extraction of a solid

Suppose I have a solid compound from which I want to extract a target chemical I know is soluble in acetone. So I crush and mix the compound in acetone, dissolving the target and suspending the ...
1
vote
1answer
78 views

Solubility in homogenous mixtures of solvents [duplicate]

Alcohol and water are miscible. I am coming across some chemicals that are soluble in alcohol and insoluble in water. If I know solubility in two solvents separately, is solubility in a mixture of ...
4
votes
0answers
89 views

How to dissolve a strong resin in difficult situation?

The resin is made up from two components: Component A: silicic acid, sodium salt (less than 10% sodium silicate) Component B: Diphenylmethane-4,4'-Diisocyanate, isomers and homologs ...
9
votes
2answers
215 views

Solvation vs nucleophilic character

ATTEMPT: In $\ce{DMSO}$ there is no acidic hydrogen. So negative charge on oxygen will be concentrated as the anion will not be solvated by the polar aprotic solvent. Hence it should act as a strong ...
15
votes
1answer
211 views

Why do some solvents bubble more than others when boiling?

This question about boiling milk reminded me of my everyday lab work at the rotavap: Some solvents and solutes are feared for the intense bubbling they create while the solution is boiling — be it at ...
3
votes
0answers
22 views

Solubilizing ability of dichlorobenzenes

I am trying to understand why 1,2- and 1,3-dichlorobenzenes are such good solvents, able to solvate many organic compounds known to be hard to get dissolved. Any precise answer? It has something to ...