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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.

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1answer
33 views

Acids using different solvents [on hold]

Many polar protic solvents exist and ionic compounds are able to dissolve inside these substances for the same reason as water. So, theoretically, if a substance were to steal a $H^+$ ion from a polar ...
2
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1answer
52 views

Why is hexane called skellysolve-B

https://pubchem.ncbi.nlm.nih.gov/compound/hexane Another name for hexane is skellysolve-B, is that just to be silly?
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1answer
33 views

What are solvents that can dissolve sebum that is safe for topical use? [on hold]

I do not know much about these properties and I need some feedback regarding these. Sebum is a semi-fluid that in humans contains a mixture of triglyerides, cholesterol, ester waxes, and squalene. 57....
0
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0answers
28 views

How does wd-40 soften tires?

In the world of auto racing, many suggest using wd-40 or Simple Green to soften tires and/or increase "bite" of tires. Trying to understand the science behind how/why these products soften a tire.
1
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1answer
34 views

Are there any fluids which are both viscous and volatile? [closed]

I'm looking for a viscous fluid which will evaporate (completely) rather quickly. If propylene glycol evaporated like acetone, that would be the dream ticket, but neither the viscosity nor the ...
0
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0answers
14 views

Efficient ways to make perovskite solar cell crystals

I'm a high schooler involved in a research in which we aim to grow perovskite crystals in microgravity. I've recently come across this article in which they explain how to grow better perovskite ...
2
votes
0answers
22 views

Deperoxidation of ethers via alumina: what happens?

I was reading about the procedures for the removal of peroxides from ethereal solvents, and a procedure which seems to have survived to our days is filtration through a column of "activated alumina" (...
0
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0answers
21 views

Neutral nucleophiles in aprotic solvent - basicity vs polarizability?

According to my textbook, PH3 is more nucleophilic than NH3, whether the polar solvent is protic or aprotic. Because neutral molecules interact weakly with solvent molecules, polarizability wins out. ...
1
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1answer
184 views

Why Benzene is a good solvent even while it is not polar [closed]

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 ...
1
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1answer
46 views

How can I prevent the effervescence of a solvent during evaporation? [closed]

How can I prevent the effervescence of a solvent like petroleum ether when I evaporate it on a water bath?
0
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0answers
36 views

Explain basic nature of aniline relative to ammonia in solvent phase

It's quite common to explain the fact that aniline is less basic than ammonia using resonance. But, I read in a book[1] that solvation effects are also the reason. The explanation is given in terms of ...
0
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0answers
27 views

Solvent resistant coating?

I want to make a vessel for a dry ice bath (with either acetone or methanol--the two cheapest liquids I can find that stay liquid at -80C). I know I could just insulate a metal vessel, but what I ...
8
votes
3answers
100 views

What is the proof of complete ionic dissociation in water?

Is there any way to prove that ionic compounds, for instance $\ce{NaCl}$, completely dissociate into singular $\ce{Na+}$ and $\ce{Cl-}$ ions within water by hard experimental evidence? Besides ...
8
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0answers
116 views

Cobalt Chloride in various solvent/water mixtures - tested

In a recent post the solvatochromic behaviour of cobalt chloride in acetone was discussed. There were some ideas how the acetone might influence the ratio between the blue $\ce{[CoCl4]^2-}$ and the ...
3
votes
1answer
82 views

Why any non polar compounds dissolve in nonpolar substance like Benzene what is the reason behind it? [duplicate]

In case of ionic solvent the ionic solute dissolve in it because due to polar nature of water it break the bond between the ions through hydration energy and the ionic solvent dissolve in it. So I ...
0
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0answers
135 views

pKa Values and the Leveling Effect

I've heard that the leveling effect happens if the pKa of the acid is less than water, but then I've also heard it will happen if the acid is too strong (stronger than Hydronium). Is this correct? Are ...
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1answer
55 views

what would happen if someone smell just a little chloroform? [closed]

I'm new in labratoary and a few days ago I smelled chloroform just for a second, out of curiosity. The next day I became very sick with symptoms like nausea, vomiting, fatigue and pain in my muscles. ...
3
votes
0answers
64 views

Nucleophilicity of halides in solvents [duplicate]

I have studied that as electronegativity increases nucleophilicity decreases. But in the aprotic solvent the order of nucleophilicty is: $$\ce{F- > Cl- > Br- > I-}$$ but how is this possible ...
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1answer
836 views

Will vegetable oil and kerosene mix?

Is it possible to mix vegetable oil with kerosene? If not, what other solvents can be used to reduce the viscosity of cooking oil/vegetable oil.
3
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0answers
126 views

is syringaldazine soluble in water?

Would it be better to use water or ethanol as a solvent for syringaldazine? Why? Would water interfere with the oxidation of syringaldazine if laccase enzyme was added?
0
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0answers
120 views

Filtering dry magnesium sulfate from anhydrous acetone

I've got some anhydrous acetone which I store over magnesium sulfate to prevent the accumulation of water. Even slight movements make the still-dry MgSO particles quickly disperse throughout the ...
1
vote
1answer
85 views

How can I solvent exchange from water to alcohol?

Given an aqueous colloidal solution, is there a way to transfer the colloidal particles into an alcohol (assuming the colloidal particles are also stable in the alcohol)? I see in the literature that ...
4
votes
0answers
63 views

What is a good solvent for pentacene?

I am doing an experiment with pentacene molecule ($\ce{C22H14}$). I want to clean my sample reservoir after using it. But I show in some literature that it is slightly soluble in organic solvent. ...
4
votes
2answers
402 views

What is the function of nitrobenzene as a solvent in Friedel Crafts alkylation reaction?

I would like to know what is the function of nitrobenzene as a solvent in Friedel Crafts alkylation reaction. Answer to this question suggests that Friedel Crafts reaction is not possible with ...
1
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1answer
119 views

How do quaternary ammonium salts catalyse SN2 reactions?

I am asked to identify the "best catalyst" for the reaction: $$\ce{CH3(CH2)8CH2Br->[\ce{KCN}][\text{benzene}]CH3(CH2)8CH2CN}$$ The options are (A) benzyl chloride (B) aniline (C) N,N,N-...
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0answers
33 views

Solvent for ABS that won't harm cured urethane or epoxy resin?

Is there a commonly available solvent that will dissolve ABS plastic but will not harm fully cured clear cast resin? I understand "clear cast resin" is ambiguous, most products are listed either as ...
2
votes
2answers
50 views

How to make dichloromethane human-friendly and safe for storage?

I use dichloromethane to polish 3D printed object as postprocessing step. Most of it is stored in darkened glass on my balcony (now at $\pu{-15^\circ C}$). What chemical reactions I need to make it ...
0
votes
1answer
68 views

Is it absolutely necessary to use centrifuge to separate ethylene glycol from precipitate?

I've been trying to synthesize intermetallics of $\ce{XY}$ type using transition metal salts and main group element salts. For my system, EG, DEG, and TEG are good solvents. However, because of them ...
1
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0answers
46 views

How to determine crown ether cavity size? [closed]

I want to determine the cavity radius/ dia of crown ether. Which technique should I follow?
4
votes
2answers
509 views

Is polylactic acid (PLA) soluble in ethylacetate?

I'm searching for polylactic acid (that used in 3D printing) solvent, that is less toxic. It's used to postprocessing to polish object. Dichloroethane is toxic, acetone and dichloromethane less, but ...
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votes
1answer
4k views

Halogenation of Phenol [closed]

Why does only one $\ce{Br+}$ ion get generated in a non-polar solvent (such as $\ce{CS2}$), while more $\ce{Br+}$ ions are generated in aqueous or polar solvent (such as $\ce{H2O}$)?
4
votes
1answer
176 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 ...
0
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1answer
33 views

How to evenly mix NaCl and Lactose

Q: You have 10 g NaCl (s) and 90 g Lactose (s) (both easily soluble in water.) You want to achieve a 100 g mixture of these two compounds in solid form where they are completely evenly mixed. (A 1 mg ...
1
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1answer
361 views

How to choose alcohol solvent for organic extraction?

Assuming I have an organic substance that is known to be "soluble in alcohol" (e.g. capsaicin) I want to extract, which alcohol should/can I use? I know that both ethanol and methanol are commonly ...
0
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0answers
219 views

Orange Melting / Dissolving Plastic Knife?

So I was just cutting the peel of an orange with a plastic knife and when I went to wipe of the juice from the knife with a paper towel I noticed that a black residue came off the knife where the ...
4
votes
1answer
982 views

For what reasons, is isopropyl alcohol widely used as a cleaning solvent?

I have worked in electronics and aeronautics industry 30 years ago, and I have always wondered, what were the specific properties of isopropyl alcohol, which make it used instead of other alcohols ...
5
votes
1answer
354 views

Isopropanol in contact lens solution plastic bottle

I have a rather large plastic bottle of isopropanol ($99.7\%$), and I wanted to store some of it in a smaller, more handy container. I have two empty plastic bottles from contact lens solution that I ...
3
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1answer
303 views

Questions regarding the preparation and recrystallisation of methyl 3-nitrobenzoate

I have a procedure for the synthesis of methyl 3-nitrobenzoate (via nitration of methyl benzoate): Weigh 2.0 g of methyl benzoate into a dry 50 cm3 conical flask. Add 4 cm3 of concentrated ...
3
votes
1answer
698 views

Is there a substance that will eat through and completely dissolve carbon but not damage engine cylinder, piston nor rings?

I'm afraid that when I was instructed to be specific in the title of my post, I kind of said it all... Here is the issue: I have a 2001 Isuzu Rodeo. It has been going through excessive amounts of oil....
3
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0answers
201 views

What pH indicators are commonly used for non-polar medium?

Compounds, commonly used as pH-indicators, are soluble in aqueous media and polar solvents (DMSO, DMF, NMP etc.) and are functional pretty much across all these solvents. However, practically none ...
1
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1answer
4k views

How to remove formaldehyde (smell) from clothes/jeans?

Bought several jeans, then to discover they have a really nauseating smell, that is not removed by washing. Reckon it's formaldehyde, from what I can read. Anyway, assuming you have jeans with ...
3
votes
1answer
37 views

Is supercriticality dependent on partial presssure, or total pressure?

Supercritical CO2 is commonly used as a solvent in organic chemistry (notably in industrial processes like decaffeination). I presume that in such cases, the CO2 is typically pure, or very close to it....
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1answer
60 views

Synthesize camphene

How does one easily synthesize camphene in the modern day? The old 1902 patent says to combine ammonia and pinene hydrochloride in an autoclave at 210-220C for 20 hours. Would alpha-pinene work with ...
0
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0answers
33 views

what solvent should i use to disinfect leaves without destroying other chemical properties

i am making a Mimosa pudica's antifungal study claims for my project at school. therefore making a product out of it. And i was about to extract the plant's chemical properties but first i dont know ...
1
vote
1answer
83 views

How to calculate he equilibrium constant change for acid-base reactions in a different solvent?

So we know that $K_\mathrm w$ is $10^{-14}$. But what if I am working with non-aqueous systems? Suppose I were to add LDA to liquid ammonia, or dissolve HCl in concentrated sulfuric acid. How would I ...
2
votes
1answer
1k views

Why is enol content higher in non-polar solvents?

Apparently, for keto-enol tautomerism, the enol content of a given carbonyl compound increases when in a non-polar solvent. What is the reason for this?
6
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4answers
6k views

How to dissolve PLA (polylactic acid)?

I'm a maker and I've been interested in 3d printing for years. I have found a technique for dissolve the PLA supports in a model printed in 3D in HIPS I have printed the model in HIPS and the ...
1
vote
2answers
472 views

Mechanism of Halogenation of Alkene

In the above reaction, we use a non-polar compound (such as CCl$_4$) as a solvent. Then, why does the Br$_2$ polarise on attack by the alkene, even though a non-polar solvent does not encourage ...
9
votes
1answer
199 views

How to accurately abbreviate solvents?

IUPAC Red Book in section IR-4.4.4 Ligand abbreviations [1, p. 63] states the following: N.B. Abbreviations for solvents that behave as ligands should also be in lower case letters [e.g. dmso for ...
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0answers
85 views

Looking for a Solvent for Fragrance Oils [closed]

Hi I am looking for a solvent for fragrance oils, that has low evaporation and high diffusivity (low molecular weight and hence spreads well in the air). The solvent should also be soluble in water ...