Questions tagged [reference-request]

This tag is for questions looking for a single specific, or a small number of (citable) references.

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Effect of particle size on yield of copper acetylide

To avoid pure trial and error, I need some examples of experiments already done with (possibly ammoniacal) aqueous solutions, particles/precipitates of copper (both oxidation states) salts, and ...
Paul Kolk's user avatar
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2 votes
1 answer
223 views

Electrical properties of glycol / water mixtures

I'm looking for a reference on electrical properties (specifically, conductivity) of mixtures of water / ethylene glycol. Specifically, I'm interested in How does the electrical conductivity of the ...
G. Gare's user avatar
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0 votes
0 answers
54 views

Temperature-dependent pressure equilibrium constant of the heterogeneous water-gas shift reaction

In the course of my research, it became necessary to perform thermodynamic calculations involving chemical reactions. One of the chemical reactions is the heterogeneous water-gas shift reaction $$\ce{...
TTNN's user avatar
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6 votes
0 answers
144 views

Which xylenes, if any, are immiscible with DMSO?

"Xylene" is reported to be immiscible with dimethyl sulfoxide (DMSO), according to a few solvent miscibility tables found online (chart 1, chart 2, chart 3). I have tried to locate some ...
Anger Density's user avatar
7 votes
2 answers
897 views

Does high pressure reverse reaction between zinc and sulfuric acid?

When zinc is added to sulfuric acid, it undergoes a chemical reaction that generates hydrogen gas and zinc sulfate. Can this reaction be reversed by applying pressure to the products converting them ...
Dr Potato's user avatar
  • 181
0 votes
1 answer
48 views

How can I find references related to pH for water solutions of salts [closed]

I have searched the web pretty much all day because I want to work out what the pH will be of various salts when they are in water solution. I have searched for references related to pKa and pH, but I ...
Mikkel Rev's user avatar
-2 votes
1 answer
55 views

Aluminum nitride hydrolysis [closed]

I wanted to ask some reference about aluminum nitride hydrolysis in water. Specifically I would like to know if there is the formation of radicals or of some other reactive species.
Al1010's user avatar
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0 votes
0 answers
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Database of atomic crystal structure data or images of rocks and minerals?

I am looking for crystal structure images so I can redraw them in a nice form. However, I don't seem to find much searching Google. Perhaps this is a slightly better example (searching for Quartz ...
Lance's user avatar
  • 103
-2 votes
2 answers
179 views

Looking For Resources on Separating Iron, Silicon Dioxide, and Sodium Chloride [closed]

I am working on an experiment and lab report for my high school chemistry course where I am given a vial with a mixture of Ferrum, silicon dioxide, and sodium chloride. I need to figure out how to ...
Meerkat's user avatar
  • 15
5 votes
1 answer
721 views

Meaning of equivalents in organic synthesis

The use of "equivalents" as used in titrations/chemical analysis is an obsolete concept except in some countries. The original meaning of equivalent weights is the weight of a compound that ...
AChem's user avatar
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5 votes
0 answers
161 views

Does chromium(III) oxide react with or dissolve in liquid sulfur dioxide?

Liquid $\ce{SO2}$ (b.p. −10 °C) is known as a versatile solvent (yet not particularly pleasant to work with) for a wide range of organic and inorganic compounds having limited solubility in ...
andselisk's user avatar
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Searching for evidence-based published study that compares disinfectant residues after evaporation

I've been plowing through databases to find evidence-based research reporting on the residue remaining after evaporation of chemical disinfectants. I want to know if there is a study which states the ...
Khashayar Mahmoudi's user avatar
0 votes
1 answer
128 views

What does the word "dynamics" mean in the context of proteins or biomolecules in general?

What does it mean by “dynamics” when we say “dynamics of protein” or “dynamics of biomolecules”? For instance, McCammon's paper has the title "Protein Dynamics" [1]. What does the word “...
user avatar
0 votes
0 answers
215 views

IR spectra database for inorganic compounds

I would need a database of IR spectra of inorganic compounds, possibly free of charge. For organic compounds there is for example "AIST: Spectral Database for Organic Compounds, SDBS" (https:...
Al1010's user avatar
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0 votes
2 answers
279 views

Can anisole be nitrated only with nitric acid?

Is it possible to nitrate anisole using only concentrated nitric acid? Or is it necessary to use sulfuric acid or acetic anhydride? Could you please help me with some references?
G. Arias's user avatar
3 votes
1 answer
91 views

How does coenzyme A produce proton from pyruvate ions?

Coenzyme A (CoA) is a complex molecule consisting of mercaptamine, β-alanine, pantoic acid, diphosphate, pentose, phosphate and adenine moieties: Which part of it actually plays role in the formation ...
Awe Kumar Jha's user avatar
2 votes
1 answer
80 views

Mathematical models of Vaporization-Condensation dynamics

I am a mathematician now studying an introductory chemistry course. Consider a liquid in a closed container, at (say) room temperature. Then some of the liquid will vaporize. Then some of the ...
Asaf Shachar's user avatar
4 votes
1 answer
249 views

Has tellurium(II) iodide been properly characterized ever?

According to Wikipedia, tellurium tetraiodide decomposes on heating: $$\ce{TeI4 ->[\Delta] TeI2 + I2}$$ However, the reaction is somewhat wrong as according to this 2008 paper: Solid tellurium ...
Nilay Ghosh's user avatar
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4 votes
2 answers
480 views

What solvent dissolves calcium nitrate but not ammonium nitrate?

I am experimenting with a precipitation reaction between ammonium sulfate solution and calcium nitrate. Calcium sulfate precipitates and can be filtered out easily. I am wondering if there's a way I ...
Dominic Jung's user avatar
1 vote
1 answer
135 views

Can all 20 H atoms of pentagonal dodecahedrane be substituted with high yield and a wide range of substituents? What limits full substitution?

I first came across dodecahedrane in comments below What dodecahedral molecule is Linus Pauling likely holding in this photograph? Does it have 40 carbon atoms? Wikipedia's Dodecahedrane; Derivatives; ...
uhoh's user avatar
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1 vote
0 answers
94 views

Feynman books analogous in chemistry [closed]

Is there a analogous to feynman lectures in physics but for chemistry? Like a book ir series of books that covers all the basics?
Lucas's user avatar
  • 19
4 votes
1 answer
628 views

Ellingham diagram/graph for tungsten

I've recently come across one of the methods to form tungsten carbide($\ce{WC}$) from wolframite ($\ce{(Fe,Mn)WO4}$) by using carbothermic reduction which was supposedly one of the first methods for ...
kafka yash's user avatar
7 votes
1 answer
419 views

Caffeine molecule representation and orientation

Almost all the representations of the caffeine molecule that I've come across have the two rings drawn next to each other on the horizontal axis. Any particular reason for this? Would it be sacrilege ...
Zaph Brox's user avatar
  • 107
4 votes
0 answers
91 views

Mapping of half-life decay for all elements/isotopes

Is there an open resource that helps illustrate all paths of decay for all isotopes (e.g. $\ce{^{99}Mo}$ decaying to $\ce{^\mathrm{99m}Tc})?$ I know the result state/transition map would be massive, ...
VenomFangs's user avatar
0 votes
1 answer
573 views

IUPAC name of benzoyl chloride

I came up with two possible names: benzoyl chloride and benzene carbonyl chloride. I believe both names are correct. Wikipedia says that the preferred IUPAC name is benzoyl chloride: Can someone ...
DatBoi's user avatar
  • 264
1 vote
0 answers
372 views

Interpretation of azeotropes from statistical mechanics derivation

In an earlier posted question titled Reason for the formation of azeotropes, @porphyrin presented an elegant derivation from statistical mechanics to interpret partial pressures for the two components ...
Josiah_H's user avatar
  • 379
-4 votes
1 answer
267 views

Where can i find accurate bond angles?

I am trying to find places where I can have accurate bond angles of certain molecules such as $\ce{F2Se}$, $\ce{Cl2S}$, or even $\ce{S2Se}. I have looked everywhere and have found only 3 sources that ...
Adrien Bonansea's user avatar
1 vote
0 answers
105 views

Where to find the ChEMBL21 database in CSV format?

I come from an artificial intelligence (AI) background (and not from chemistry). However, my Ph.D. thesis is about Deep Reinforcement Learning for drug design. From one of the most famous papers in ...
mac179's user avatar
  • 319
7 votes
1 answer
1k views

What is the chemical composition of Ferrous Ferrocyanide?

To this day, iron-cyanide complexes confuses me. So, I want to settle this once and for all. After scavenging the internet, I gathered the following result: $$ \ce{Ferr} \color{blue}{\ce{ous}}~\ce{...
Nilay Ghosh's user avatar
  • 25.6k
1 vote
0 answers
429 views

Electrode potential of Br2/HBr half cell

I am wondering if it is possible to find the electrode potential of such a half cell: $$\ce{Br2 (l) + 2 e- <=> 2Br-(g)}$$ The standard electrode potential is for $\ce{Br-(aq)}.$ However, is it ...
john's user avatar
  • 242
2 votes
1 answer
136 views

What are all the steps on the organic chemistry diagram called The Boat?

When I learnt A-level chemistry, I was told to use a diagram the teacher called The Boat. It was a diagram illustrating all the chemical reactions that you can do to simple organic compounds. For ...
AncientSwordRage's user avatar
5 votes
0 answers
97 views

Anomaly in Faraday's constant measurements

I was reading someone's biography, where the writer stated his early interest in Faraday's constant measurements (this is set six decades ago). My understanding was that Faraday constant is a true ...
AChem's user avatar
  • 40.1k
1 vote
2 answers
157 views

Reference request: book that covers an overview of useful materials

I was wondering if there is a book that has a broad coverage of inorganic materials, like concrete, glass, and steel. Ideally the book would go into how each material is manufactured and some of the ...
jrudd's user avatar
  • 127
9 votes
3 answers
404 views

Nucleophilicity of sterically hindered enolates

Problem Answer Question Here $\ce{KH}$ obviously acts as a base, and forms the enolate from the ketone, which subsequently act as nucleophiles causing an SN2 reaction on the $\ce{CH3I}$. When this ...
TRC's user avatar
  • 1,809
1 vote
0 answers
243 views

Do CHF3 and acetone form a hydrogen bond?

I haven't been able to find a reference confirming that fluoroform forms hydrogen bonds with acetone. Do they?
Entropy's user avatar
  • 55
7 votes
1 answer
566 views

How is the vibration of multiple atoms treated in vibrational spectroscopy?

Most of the advanced undergraduate textbooks on physical chemistry/ instrumental analysis show the case of a diatomic harmonic oscillator and derive formulae for predicting the frequencies. The ...
AChem's user avatar
  • 40.1k
3 votes
0 answers
601 views

Advantages of p-toluenesulfonic acid over sulfuric acid in the formation of acetals

I am currently working on an undergraduate experiment to form a cyclic acetal. We were asked to use p-toluenesulfonic acid as a catalyst rather than sulfuric acid. This seems to be common practice ...
jona173's user avatar
  • 381
3 votes
2 answers
186 views

Can a Grignard reagent form magnesium halide with an alkyl halide? [duplicate]

$$\ce{RMgX + R'X' -> RR' + MgXX'}$$ Is this reaction possible? I am not able find any reference to it in the books that I have. Anyone has a reference?
anand's user avatar
  • 39
1 vote
1 answer
225 views

What is the alloying composition of the Zinc-Platinum System?

My research team and I are working on a bimetallic alloy consisting of Zinc and Platinum. We have looked for papers regarding the composition of Zinc-Platinum alloy. But there aren't many papers out ...
isentropic compression's user avatar
13 votes
1 answer
1k views

Does the largest known cycloalkane contain 288 carbon atoms?

If you Google "largest known cycloalkane", you will find this: The above result came from a random HW-QnA site. From where does the result come from? Similar posts: Largest alkane having a ...
Nilay Ghosh's user avatar
  • 25.6k
2 votes
0 answers
400 views

Names of the f suborbitals. (Reference Request)

Today, I have been browsing the internet to know the names of the "f" orbitals. But I have varying answers on the web. Different sources seem to be stating different names. Like here, and ...
Habib's user avatar
  • 795
5 votes
1 answer
2k views

Source for UV cut-off values of buffers

When I want to check a $\mathrm{p}K_\mathrm{a}$ value I look it up in CRC Handbook. Is there such source for UV cut-off values of various buffers? Usually books in chromatography contain tables with ...
JohnRiley's user avatar
1 vote
1 answer
485 views

How is electron-impact mass spectrometry data formally reported?

NMR data has the following format when reported in a paper: How would I go about reporting my EIMS data formally? I tried looking for documents online but couldn't find anything.
Thor Correia's user avatar
2 votes
0 answers
58 views

Process parameters of typical chemical processes [closed]

I am researching to opportunity of heat recuperation in the chemical industry be means of high temperature heat pumps. However, I am having some trouble with finding suitable applications. I would ...
Elias4's user avatar
  • 29
7 votes
2 answers
2k views

What is the maximum number of water molecules that has been recorded till date to present as water of crystallization in a compound?

Context: I was casually looking through some old questions when I found this question. The OP wanted a compound that has all the hydrates ranging from monohydrate to decahydrate. I found chromium(III) ...
Nilay Ghosh's user avatar
  • 25.6k
3 votes
2 answers
2k views

Reactivity of group 13 elements with nitrogen

Do all group 13 elements react with nitrogen to form nitrides of form $\ce{MN}?$ J.D. Lee's Inorganic chemistry book mentions the following: Aluminium burns in dinitrogen at high temperatures ...
Ashish's user avatar
  • 1,409
0 votes
0 answers
538 views

What does solid matrix mean?

I am reading "Effect of Freeze-Drying on Quality and Grinding Process of Food Produce": A Review by Timilehin Martins Oyinloye and Won Byong Yoon. The problem is they are referring to the ...
Creator's user avatar
  • 141
3 votes
1 answer
125 views

Fluorescence quenching by palladium(II) vs. platinum(II) complexes

Why do we observe much stronger (in most cases complete) fluorescence quenching by $\ce{Pd^2+}$ than $\ce{Pt^2+}?$ I work with complexes of both metals and there is no real 100% explanation I can find ...
TheChemist's user avatar
1 vote
0 answers
128 views

Molar conductivity of a strong electrolyte

In 1910, Kohlrausch showed that the dependence of the molar conductivity of strong electrolytes is well described by the following equation: $$\Lambda_m = \Lambda_m^\circ-K\sqrt{c}$$ This equation, ...
Carlos's user avatar
  • 607
2 votes
0 answers
26 views

Chemical safety information: Where to look to find out how poisonous poisons are?

Could someone point me toward a primer on how to read the toxicity warnings on standard chemical data sheets? Or alternatively, where one should look for more precise information than is contained on ...
andrewH's user avatar
  • 167

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