What is the pressure index of propellant?

Dear All, May I know what is the pressure index of propellant? how to calculate pressure index of propellant from burn rates at different pressures.. Thanking in advance fro your valuable time.

07 August 2018 5,480 1 View

Does the pH of phosphate buffer changes with temperature aging?

If I make a phosphate buffer of pH 7.2 at RT and take it to 37 degree does it changes? What about simulated body fluid (SBF)?

11 December 2017 7,062 2 View

How to calculate the molecular weight of PEG from proton NMR?

Dear All, I want to know the MW of polyethylene glycol. Please suggest me how to calculate the molecular weight from proton NMR. Thanking you.

05 June 2017 2,383 5 View

How to calculate the hydroxyl value or OH functionality of PEG from 1H NMR?

Dear all, I want to calculate the hydroxyl value or OH functionality of PEG from 1H NMR. Is it possible to calculate as end functionality as in the other oligomers..? What will be the degree of...

05 June 2017 7,220 6 View

Does aldehydes undergo nucleophilic addition or substitution reactions?

02 March 2017 1,270 15 View

How to measure the density of viscus liquids?

How to measure the density of viscus liquids? please suggest some simple method.

05 June 2016 2,361 1 View

How to measure the thermal conductivity of polymeric viscus liquids?

How to measure the thermal conductivity of polymeric viscus liquids?

05 June 2016 9,757 1 View

How to update citation (from IECR in ACS) to my article (Plymer in Elsevier) in RG?

02 March 2016 4,292 2 View

What are the important factors that can be evaluated by dielectric measurements of polyurethane films?

Dear all, Thanking you in advance for your valuable time. We have prepared few PU films with controlled ferrocene loading in the order of 10-3 w/w %. We observed a little improvement in dielectric...

02 March 2016 8,746 3 View

How to file a patent and how to choose patent publishers..?

How to file a patent and how to choose patent publishers..?Suppose we have developed a binder which is better properties than existing and very easy to synthesize. Thanking you in advance for your...

01 February 2016 6,623 0 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

What are the methods used for CNT..?

Respected Professor's i hope you are doing well and happy. i need some information about carbon Nanotubes. before blending the CNT with the matrix the CNT has been introducing in some treatments....

24 February 2021 5,383 5 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

22 February 2021 6,569 3 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

21 February 2021 7,561 4 View

What properties of water shall be analyzed and evaluated to test the effectiveness of activated carbon?

I would like to ask what other properties of water (pH and such) shall be analyzed and evaluated to test the effectiveness of activated carbon from filtering the contaminants present in the water?

20 February 2021 9,422 8 View

Who are the possible experts I can reach out to regarding the reseach topic: Activated Carbon as Water Filter?

Hi! Me and my team mates are currently new in doing a research study. We do not have any previous experiences in research. And we just wanted to know what type of experts (the field they in) can...

19 February 2021 9,596 4 View