Inorganic Chemistry

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Questions related to Inorganic Chemistry

During UV characterization of Nano Particles synthesis, no peak is observed for sample calcined at 300 degree C, what can be the reason?

No peak is observed for the sample calcined at 300, 400 degrees C, but a peak with a shoulder is visible when I raised sintering temperature, which must be due to resulted compound I guess. But...

31 October 2022 6,398 3 View

May I determine the band gap energy of hydrothermally synthesized MoS2 nanoparticles by Tauc plot method ?

Would it be ok? if I get absorption data simply by making slurry of MoS2 nanoparticles in water and then perform usual calculations in Tauc equation.

22 December 2021 7,476 7 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

02 March 2021 2,625 4 View

Ligands with 3,4,5-trihydroxyphenyl group?

Hi In the design of a bidentate ligand with imine group, is it okay to have a 3,4,5-trihydroxyphenyl group in the structure? In other words, does the 3,4,5-trihydroxyphenyl group compete with...

09 February 2021 5,128 7 View

Is it possible to prepare clay minerals by mixing pure oxides of required elements? What would be theoretical difficulties with it?

Practically this is not at all necessary. But theoretically, would hydrous/hydrothermal synthesis be enough (like mix 1 mole alumina gel and 4 mole silica gel and gently heat) or would it require...

27 January 2021 6,627 3 View

Is there any special rule to find out possible room-temperature stable silicates' chemical composition, if not crystal structure itself?

Suppose one needs to find out room-temperature stable silicates chemical composition of a particular cation, suppose magnesium. Is there any rule to estimate which stoichiometric values of metal...

14 January 2021 7,556 4 View

Why is there a need to acidify the solution before the precipitation of Lead as Lead Chromate?

I am confused at my inorganic chemistry class D:

04 October 2020 1,330 8 View

Possibilities of formation of Octahedral complexes of Pt(II)?

Kindly I am asking for the possibilities of formation of transition metal complexes of Pt(II) with octahedral geometry. If it is possible, could you help me by referring to published papers that...

17 July 2020 570 6 View

How can we tell if a ligand is pi-acceptor, sigma donor or vice versa?

For complex molecules with many heteroatoms, can we predict if the molecule is pi-acceptor or donor? Also if possible can someone suggest a good source to read more about these stuff in detail?

15 July 2020 3,273 2 View

What tunes the selectivity of ionic exchange towards an ion? can we predict it? Is it pH dependent?

Cheers Everyone. I was seeing some uses of ionic exchange to recover NH4 by ionic exchange with other cations in a specific matrix. And it brought me to question what drives an ionic exchange to...

18 February 2020 6,744 3 View

Which mass flow controllers can be used for general gas sensing set-up?

I would like to know which MFCs can be used to build a general gas-sensing characterization unit. I want to know their general specifications also.

05 February 2020 3,395 3 View

Why burnt stainless steel surface (often by pyrolyzed organic molecules) is often iridescent?

One can argue for thin-film interference of protective oxide film (that has varying thickness) that have been eroded-corroded to various thickness. But why does this pattern last long? Does oxide...

01 January 2020 5,934 1 View

Can we use oxalic acid anhydrous instead of oxalic acid dihydrate?

I have to do synthesis of W doped VO2 for which the oxalic acid dihydrate was used as reducing agent according to research paper :Tungsten doped M-phase VO2 mesoporous nanocrystals with enha... i...

24 October 2019 4,677 3 View

Change in the surface area after modification?

Hello, dear Scientists I would like to know why in some cases, if you impregnate metal in a support (in different percentages, e.g.: 1%, 2%, 4%) the surface area of the final material do not...

23 October 2019 9,393 4 View

Is there any Overview on inorganic chemistry and High-energy physics at Planetary interiors?

Planetary interiors have pressure and temperature far different from surface, and both physics and chemistry takes unexpected turns on this region. Is there any good textbook or overview article...

01 October 2019 5,478 1 View

Is it plausible that positive shifts (frequency increase) of functional group peaks of a ligand explain a coordination in Raman spectroscopy?

In FTIR, for example, the carbonyl group peak of an amide ligand shifts negatively at lower frequencies when it participates in a coordination. However, it is observed in Raman that the frequency...

25 September 2019 5,397 2 View

What iron species are precipitating after autoclaving ferric chloride water solution?

I made 10mM FeCl3 solution in MQ water. After autoclaving it (standard 15min procedure) solution turns orange-brown. Filtering using 0.22um filter does not remove the color (but some of it is...

25 September 2019 2,656 7 View

What is the best computer program for the calculation of stability constants from UV-Vis spectrophotometry titration data?

What is the best computer program for the calculation of stability constants of metal comlexes from UV-Vis spectrophotometry titration data?

21 April 2019 5,404 4 View

I am looking for a job as a solid state chemistry researcher in Germany. Could anybody help me in this regard, please?

I'm PhD graduated in Inorganic Chemistry. Currently I am searching for a new position in metal-organic frameworks (MOFs) & li-ion batteries as a Postdoc or Ph.D. researcher. You can find my...

06 April 2019 2,676 1 View

Where can I find the solubity products for calcium silicates?

Wollastonite has the chemical formula CaSiO3 and so should dissolve in water to produce Ca2+ and SiO32- ions i.e.: CaSiO3 Ca2+ + SiO32- Is this true? I suspect the reaction actually...

04 April 2019 789 9 View

How can I modelize a microheater of Pt for a gas sensor in COMSOL?

Hello to everybody, I have to modelize a MH in Pt used to heat a sensible paste for gas sensing. I decide to simulate in 2D (for semplicity) and, at this point, the main problem are the...

22 March 2019 1,736 2 View

What is the Refractoriness of a triaxial system with Al2O3 : 74%, Fe2O3: 0.6% and Silica : 25%?

For refractory brick we measure the refractoriness with Orton cone (standard cone) What should be the PCE value (theoritical) for the refractory having following chemical analysis. Al2O3 :...

23 January 2019 8,143 4 View

Do you know a reference book for binary phase diagrams of inorganic salts?

I am looking for a reference book to look up phase diagrams of binary mixtures of inorganic salts, for example KNO3-NaNO3, CaF2-MgF2, and so on. Any recommendation will be appreciated!

17 December 2018 7,670 3 View

What is the green intermediate product of thermal decomposition of hydrated copper nitrate (copper(II) nitrate hemipentahydrate)?

When performing a synthesis of CuO-doped TiO2 nanoparticles through sol gel process (alkoxide path; ethanol as solvent), a bluish green sol and a green intermediate product (dried gel) were...

29 October 2018 5,169 3 View

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