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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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0answers
57 views

Rendering and visualization of orbitals of an atom? [duplicate]

I am looking for program that would display and render the orbitals of an atom. Preferably display all orbitals. Specifically Argon. Its not duplicate. I am looking for visual appealing rendered ...
2
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0answers
412 views

What is the explanation of the odd even effect in liquid crystals?

What is the most accepted theory for explaining the odd even effect in liquid crystals? Can anyone explain and refer the corresponding paper?
2
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0answers
87 views

Ink / formulation chemistry: What lab requirements

Little open information can be found on the requirements of the manufacture, development and testing of gel and printing inks. It seems that most ink manufacturers have their own specific lab ...
2
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0answers
81 views

Nomenclature in Other languages

Even one letter can make a huge difference in Chemistry Nomenclature. So I am looking for credible resources that is specifically published for explaining Nomenclature rules, examples in Spanish. Any ...
2
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0answers
347 views

Delta G values for Pyruvate--> Alanine vs. Oxaloacetate -> Aspartate ->Asparagine

What are the delta G values for the mammalian (human) biosynthesis of alanine from pyruvate, and for the conversion of oxaloacetate to asparagine? (assuming no particular cellular restriction or other ...
2
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0answers
241 views

Graph theory, isomer enumeration and chemical graph theory

Where could we find a good description of graph theory applied to the general problem of isomer enumeration and chemical graph theory?
2
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0answers
84 views

Reference to find dielectric constants and dielectric relaxation time

I am working on a Master degree and need to know the following data : The static (low frequency) dielectric constant of isopropanol at 25 °C The Optical (high frequency) dielectric constant of ...
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2answers
452 views

Density of saturated n-octane in air at 300 K?

I am trying to calculate (if possible) the gas density of air saturated with n-octane at 300 K. Any suggestion of how to do this, or better, where I can look up the data?
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2answers
82 views

Finding the chemical name of SnMg₂O₄

Can somebody help me in identifying the name of $\ce{SnMg2O4}$? Other examples are $\ce{ZnAl2O4}$ (zinc aluminate), $\ce{ZnIn2S4}$ (zinc thioindate). Please kindly provide the reference if possible.
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2answers
344 views

Equilibrium constants for lewis acids such as Ca2+

I need to calculate the theoretical $\mathrm{pH}$ in a $50~\mathrm{mL}$ water solution where $6.4\times10^{-4}~\mathrm{g}$ of $\ce{Ca^{2+}}$ is present. The reaction I base this on is the following $$...
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1answer
68 views

Does Henry's law depend on curvature of gas/liquid interface?

Could you tell me Henry's law depends on curvature of gas/liquid interface or not? It would be better with references.
1
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1answer
233 views

House-hold chemistry experiments for a high-school student [closed]

I want to experiment the things which we learn in chemistry as a twelfth grader.I want to do them at my home but I'm not supplied with enough reactants.What can I do by using such reactants. I tried ...
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1answer
147 views

Reference request - Nomenclature of organophosphorus compounds?

Can someone please provide me a good reference for the nomenclature of organophosphorus compounds such as pesticides and chemical warfare agents? Something from the IUPAC would be great. Thanks.
1
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1answer
181 views

What fraction of hydrogen in air results in an explosive mixture?

I would like to know if there is documented evidence of the quantity of hydrogen to air that must be present in the mixture to risk explosion or flame.
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2answers
213 views

Cohesive Energy Density table request

Quick question: Any one knows a resource for Cohesive Energy Density of some organic materials ? I am not looking for any specific molecule, actually I want to plan my project based on available ...
1
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1answer
98 views

How often is the IUPAC Goldbook Updated?

I was wondering how often does the IUPAC update its Gold Book, ie, IUPAC Compendium of Chemical Terminology - the Gold Book. It poped in my mind when I saw this question about jellium aromaticity, ...
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1answer
183 views

Does aqueous component contribute to the equilibrium constant?

Consider an equilibrium reaction with an aqueous solution $\ce{A(aq)}$ in equilibrium phase with gas: $$\ce{A(aq) + B(g) <=>[$K_\mathrm{eq}$] C(g)}$$ Would the equilibrium constant have aqueous ...
1
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1answer
69 views

Where to find a look-up table for mechanical properties of thermoplastics?

Does anybody know of a good compilation, regarding mechanical properties of thermoplastics or in general polymers?
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1answer
53 views

Are there any free phosphorus-31 NMR spectral libraries?

I know that there are some sites like Sigma Aldrich and AIST for $\ce{^1H}$ NMR and $\ce{^13C}$ NMR, but was wondering if there were any free sites to compare $\ce{^31P}$ NMR spectra?
1
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1answer
49 views

Can oxygen gas in air react with Mn3O4 to form MnO2?

I think $\ce{MnO2}$ at high temperature can be used as a catalyst for $\ce{SO2 + O2 -> SO3}$: $$ \begin{align} \ce{MnO2 + SO2 &-> MnSO4}\tag{1}\\ \ce{3 MnSO4 &-> Mn3O4 + SO2 + 2 SO3}\...
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1answer
27 views

Is there any book or text where ionic radius of elements are given?

So my research has me looking for ionic radius characterization. If anyone could post any link or give the name of any book where ionic radius of all elements are given that would be really great?
1
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1answer
93 views

Cerium (CeO) behavior in Glass Polishing?

I am basically working in semiconductor industry and I specifically taking care of CMP (Chemical Mechanical Polishing). We did polish glass (borosilicate type of glass) and we are using slurry (which ...
1
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1answer
182 views

Where can I find the standard molar entropy for ammonium bicarbonate?

I'd like to know the standard molar entropy S0solid for ammonium bicarbonate to use in an example in class, to calculate ΔS0 for the reaction, NH4HCO3(s) → NH3(g) + H2O(g) + CO2(g). Already checked: ...
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1answer
339 views

Where can I find (citable) FTIR spectra of CuCl and CuCl2?

I can't seem to find any published/citable infrared (FTIR) spectra in the 4000-400 cm-1 range of CuCl and CuCl2. Does anyone know of a source available, either free or paid?
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1answer
33 views

Does anyone have information about Piquet and Calitet (chemists)?

I was given a set of names of chemists to research and one of them was actually a duo that I understand to have been French chemists (at least their last names suggest it). I have queried and queried ...
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1answer
3k views

Which metals hydroxides dissolve in excess NH4OH?

Some metal hydroxides like $\ce{Ag(OH)}$ and $\ce{Cu(OH)2}$ dissolve in excess $\ce{NH4OH}$ to form metal ammonia complexes. I want to know which other common metal hydroxides dissolve in excess $\ce{...
1
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1answer
153 views

Potassium Metavanadate Synthesis

I am looking to synthesize potassium metavanadate. Possible precursors that I have are $\ce{V2O5}$ and $\ce{NH4VO3}$. I have considered the following procedure: Combine $\ce{V2O5}$ and $\ce{KOH}$ ...
1
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1answer
879 views

Oil :water partition coefficients

Is there a database or a website with a list of oil : water partition coefficients of substances ? I actually want the oil:water partition coefficients of : cholesterol, starch , methyl citrate , ...
1
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0answers
31 views

Thermochemical data for thiocyanatoiron(III) ion

I am currently writing a lab report about the formation constant of $\ce{FeSCN^2+}.$ All I could find online was a formation constant at $\pu{25 °C}$ $(890),$ which was 70% higher than the ...
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0answers
29 views

Explanation for the reaction of gold and iodine(iii) solution

The Experiment A few days ago I saw a video of dissolving gold in the condition of $\ce{ICl3/HCl(aq)}$. In the video, $\ce{ICl3(s)}$ is added to a test tube, followed by adding conc. hydrochloric acid....
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0answers
36 views

Water replacement for pressure-testing [closed]

Due to circumstance, our Data Centre build has some delays and it currently looks like we're going to have to perform a hydrostatic test of our sprinkler system with live computers in it. As I have ...
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0answers
45 views

How to dissolve PLA/PCL/PMMA?

I have a research about electrospun membrane synthesis where I dissolve PLA pellets in chloroform:methanol (3:1) for 3 hours and also PCL pellets in chloroform:methanol (3:1) for 3 hours too. Another ...
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0answers
29 views

Determining the composition of basic copper sulfate by titrimetry

A colleague shared an undergraduate level classical gravimetry/titrimetry experiment on determining the stoichiometry of basic copper sulfate. I am looking for a reference for this type of experiment. ...
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0answers
140 views

Solubility product constant of copper(II) bromide in water

One of the questions from chegg.com mentions $K_\mathrm{sp}(\ce{CuBr2}) = 6.3\cdot 10^{-10}$, but I suspect this value might be incorrect. Could anyone confirm or refute that $K_\mathrm{sp}$ value? ...
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0answers
38 views

Bond dissociation energy calculation

I am looking for methods to determine the dissociation free energy in a precise way, ideally from a simulations. My hope is to get the most precise values possible that are specific to the structure ...
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0answers
59 views

Does Raney nickel deprotect acetals?

I know that Raney nickel can deprotect thioacetals. Can it deprotect acetals as well? I found this image which shows that it deprotects and removes many protecting groups. But there was no reference ...
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0answers
39 views

Which of these chlorides is more reactive? [duplicate]

We do learn that for $\mathrm{S_N1}$ reaction the rates are tertiary > secondary > primary > methyl. The reasons mentioned are usually inductive and hyper-conjugative effect. But which of the ...
1
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1answer
44 views

What is a good resource for learning about the intermolecular bonding in water beyond high school? [closed]

I'm writing a paper for school on boiling water at various temperatures and pressures, but only noting cases wherein high temperatures were achieved without boiling under low pressure (metastable ...
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0answers
67 views

Does CF3COOH undergo decarboxylation ? Why or why not? [closed]

Does $\ce{CF3COOH}$ undergo decarboxylation ? Why or why not? Attempt: I feel it should decarboxylate because $\ce{CF3-}$ carbanion must be stable due to fluorine's -I (electron withdrawing) ...
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0answers
34 views

Readings about chiral resolutions at the undergraduate level

Does anyone know of a resource which clearly explains the scientific theory and experimental methods involved in chiral resolutions? I have access to the American Chemical Society, Tetrahedron, ...
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0answers
224 views

How close are we to building an actual nanobot? [closed]

I want to know how far current nanotechnology is from creating an actual real-world nanorobot? Also, does such a thing actually exist, or is it just a nice name for an umbrella term to show off to the ...
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0answers
47 views

What's the most trusted source for bond lengths? [closed]

I'm doing some computational work and am manually inputting Z-matrices for the molecule (no GUI support for my program). For this, I need bond lengths: I tried Herzberg's book I tried a basic ...
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0answers
80 views

Where can I find a downloadable database of basic physical and chemical properties?

The web has many online databases of properties of compounds locked behind search interfaces, but I can't find anything you can actually download. I want a corpus of data that might allow me to, say, ...
1
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0answers
21 views

For Penicillin Binding proteins, why is the Enzyme-peptide complex less stable than an enzyme-β-lactam complex?

I'm trying to figure this out. I cannot find any publications that go into good detail about the chemistry of PBP inhibition by β-lactam antibiotics. PBPs cross-link adjacent pentapeptides to form ...
1
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0answers
62 views

What are some notable results from the field of mathematical chemistry?

I recently found that there is actually a small field of research called mathematical chemistry. It seems that a lot of the research done in this field focuses on graph-theory as applied to chemistry, ...
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0answers
18 views

What is a good undergraduate bioorganic chemistry book? [duplicate]

What is a good undergraduate bioorganic chemistry book? I would like one of these as I'm tired of non-university books on the subject.
1
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1answer
485 views

Energy levels database

Does anybody know where to find a database for atomic and molecular energy levels, with the corresponding energy values for each level? It would be needed just for small molecules. I tried the NIST ...
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0answers
66 views

Where can I find the standard enthalpy of formation for Sodium Cyanamide (Na2NCN)?

I am trying to find the standard enthalpy of formation for sodium cyanamide. Ive looked on various databases that list data about specific compounds but I can't find anything on this particular one. ...
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0answers
56 views

Pharmaceutical grade phosphoric acid

I am looking for a specification for pharmaceutical grade phosphoric acid.
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0answers
26 views

Shock induced illuminated material [closed]

Any suggestions for a shock induced material that would illuminate and be capable of being visible for a minimum of three seconds? Non-toxic and minimal heat production would be optimal.