What is the reason of deterioration of polymer in humidity?

More Seyedeh Faezeh Hashemi Karouei's questions See All

What is the possible result of the chemical reaction between carbonic acid and lanthanum orthoferrite?

I would like to know about the possible reaction between carbonic acid and lanthanum orthoferrite and the condition of the reaction. Is there any possibility? I will be so thankful to receive the...

04 May 2018 6,289 7 View

Is it possible the suspension of doped Polyaniline become undoped during a period of time for example after 4 months?

I synthesized Pani (Pani was synthesized by in-situ chemical oxidative polymerization of 0.1 M double distillated aniline in 1M aqueous HCl solution and slowly dropwise adding of APS solution with...

03 April 2018 5,613 10 View

Are all superparamagnetic nanoparticle single domain?

What is the critical size of magnetic nanoparticle to be superparamanetic and how can I determine its domain? And what is the range of squareness ratio (M r/M s) for superparamanetic nanoparticle?

05 June 2017 3,517 3 View

What is a possible decomposition equation of LaFeO3?

we prepared LaFeO3 with Lanthanum nitrate (La(NO3)3·6H2O),ferric nitrate (Fe(NO3)3·9H2O) with equal molar ratio and citric acid(C6H8O7.H2O). I want to know the possible chemical equation of...

03 April 2017 7,536 2 View

What is the optimum ratio of CSA/ polyaniline for better protonation of polyaniline as a gas sensor?

We want to protonate the polyaniline with CSA for gas sensor. I would like to know that what is the best ratio of CSA/ polyaniline for better protonation of polyaniline as a gas sensor?

02 March 2017 9,920 5 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

What may be the reasons for failures of Tube toi Tube Sheet Joints in Boiler Drum ?

We have observed that tube to tube sheet joint leaked in our boiler and needs to overcome same by knowing the root cause.

08 August 2024 3,161 0 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

Hello all, Looking for international reviewer to review Ph.D thesis in wireless sensor network.Can anybody help?

My name is Apurva Saoji. I am a Ph.D scholar in Computer engineering in India. I am looking for international expert in reviewing my PhD thesis, "Competitive Optimization Techniques to Minimize...

07 August 2024 4,600 2 View

AUX gas reading problem on QE with full MS and PRM method in one run?

Dear QE-users, In the method where full MS positive mode and PRM mode are used, we always get an incorrect auxiliary gas reading (41 instead of 25). This only happens in this method; other...

06 August 2024 4,953 0 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I inoculate a lyophilized anaerobic bacteria into the culture medium without an anaerobic chamber?

There are anaerobic gas pak jars and environment providers in the laboratory that provide anaerobic environmental conditions for the growth of anaerobic bacteria. However, there is no anaerobic...

05 August 2024 4,945 3 View

Is there any Indian Company or Startups, from any universiy or IITS, which manufacture Gas Chromatography instrument , i want to make a custOmized G?

or we can collaborate

01 August 2024 6,705 2 View

What is the problem with these tissue culture plants?

All plants are green but some of these plants becomes yellow. I did not found any reason. Please help me to find out the real problem.

01 August 2024 589 4 View

Gas chromatography RT detection?

I am working on algal extract to which gas chromatography (Not GC-MS) spectrum I want to discover. My question is can we identify specific compounds using retention time if I compared the RT with...

29 July 2024 8,034 4 View