How to measure both Sulfites and Sulfates Ions In water?

Could you please help me to know a very simple method to measure the amount of Sulfite (SO3) and Sulfate (SO4) ions in the water? (titration preferred)

27 December 2020 9,350 4 View

Why isn't my quantum espresso computation converging?

I am a beginning with computation, and this is my first time working with an organic molecule.I have attached my input and output files. I was able to get the organic portion of the molecule...

19 November 2020 10,004 3 View

Why won't my sulfite ion converge in quantum espresso?

I am a beginner with quantum espresso, and am trying to relax a sulfite ion. For some reason I cannot get it to converge. Here is my input...

18 November 2020 6,106 3 View

How do I remove Bacillus sp. spores from Kraft Paper machine?

In the pulp and paper company that I work in, samples from paper, water and pulp from the paper machine gave information about existing spores of Presumptive Bacillus cereus. Our paper is used...

03 November 2020 1,726 10 View

Help in Sample Size Calculation for my Thesis Comparing the Clinical Outcome of Pulpotomy in Mature Permanent Teeth with MTA & EBRRM?

I am looking for assistance in finding statistics for sample size calculation on topic Comparing the Clinical Outcome of Complete Pulpotomy in Mature Permanent Teeth using MTA & Endosequence...

20 October 2020 8,197 6 View

Objective function for Pulp library in python?

How do we define objective functions while doing optimization using Pulp in Python. We have defined Prediction models separately. Next step is to bring objective functions from prediction models...

06 July 2020 9,256 3 View

How can I calculate the molecular weight/degree of polymerization of pulp from the intrinsic viscosity?

01 February 2020 4,944 3 View

Replacement of carbon black has possible with aramid pulp for Tyre tread compound?

Is it possible to replace carbon black with some other organic fillers?

06 January 2020 1,194 1 View

How to replace Oromerse SO Part B?

Oromerse SO Part B is a commercial solution of Na3[Au(SO3)2] , this product is reported to work to autocatalytically deposit gold over silver particles, but the company selling this product does...

31 December 2019 3,228 1 View

What is more likely to oxidise, trialkylphosphine or dialkylsulfide?

Which would be more wanting to oxidise, trialkylphosphine into trialkylphosphine oxide, or dialkylsulfide into dialkylsulfoxide? Sulfur is less electronegative so should be more willing to give...

11 December 2019 8,222 1 View