How to draw tie-lines in a ternary alloy phase diagram?

I have read that to know the composition of different phases in a ternary phase diagram of metals A,B,C (at a particular temp. T), we can apply lever rule along the tie line. But, I am not sure...

31 December 2017 6,886 9 View

How do I confirm whether my catalyst is reducing NaBO2 to NaBH4 or not?

I want to reduce NaBO2 to NaBH4 on a catalyst (electrode). Kindly provide me suggestions of how can I confirm that the reduction of NaBO2 to NaBH4 is taking place or not?

11 December 2017 2,199 7 View

Why do some compositions form eutectic?

I want to know about the reason leading to a particular composition of a metal mixture to form a eutectic alloy. I know that Gibbs free energy plays a very role and I can figure out the...

11 December 2017 6,194 4 View

What are the best ways to trap hydrogen directly from experiment for measurement of quantity?

Since, I am pretty sure that no other gaseous product could be formed in the conditions of my experiment except hydrogen, so I am pretty sure that I am able to produce hydrogen (by water...

11 December 2017 6,782 3 View

Is there any material that could be electro-deposited on another surface but becomes non-conducting after deposition?

The material or compound could be in solution from where it could be electro-deposited onto a second surface but the deposited layer of material from solution becomes non-conducting after deposition.

10 November 2017 1,888 4 View

Does Randles-Sevick equation provide electroactive surface area of working electrode?

Randles - Sevick equation provides an area value of the working electrode. Is this area the true electroactive surface area of the working electrode or there are some condition-boundations to the...

09 October 2017 7,087 3 View

What adsorbs (any chemical species, polymers, gas molecules, etc.) on Lead (Pb)?

My enquiry is about any chemical/electrochemical species maybe ions or gas, etc. that adsorbs on Pb surface exposed to that species.

08 September 2017 1,932 8 View

How to determine electrochemically active surface area of non noble metals as Pb with high reliability?

Various methods as finding capacitance have already been discussed in some papers but it seems that reliable figures and data is not available. BET is out of question as metal catalyst is carbon...

08 September 2017 8,866 4 View

How to roll bismuth pieces into thin sheets?

I want to roll or convert bismuth pieces into thin sheets of bismuth. Is there any way by which i can do that as bismuth is relatively brittle and breaks easily while rolling in a rolling mill or...

01 February 2017 3,100 2 View

Stannic cloride pentahydrate in our lab has become completely hydrated. Can i extract it back for lab use?

Stannic chloride pentahydrate being a hygroscopic compound absorbs moisture from surroundings and the bottle which was almost half unused has become hydrated now and is in liquid plus some...

31 December 2016 803 3 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View