Who can help me?

03 March 2016 0 7K Report

Who can help me to find a highly volatile and even polished metal surface.

Thanks

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More Rezvan Sharifi's questions See All

Who can help me please?

Who can give me an indication, how can I compare a physical and mechanical character with an elastomeric polyurethane resin and a sufficiently flexible thermoplastic? Thanks in advance

07 August 2017 3,910 0 View

Who can help me ?

how can i conversion CPS unite of measure to SV or mSV? Thank you in advance

05 June 2017 8,317 0 View

Who knows, except styrene monomer another solvent for polyester Resin? Thanks you

01 February 2017 7,133 0 View

Who can help me in this reserch?

Who knows a silicone resin powder which had a melting point of about 200 degrees or even less? Thanks

11 December 2016 1,642 0 View

Who can answer my question?

Who knows why the Hf acid hold in a plastic bottle? thanks in advance

07 August 2016 7,413 0 View

Who can help me to choose a surfactant?

I want to make a flexible polyurethane foam, but I find many holes in the foam, how can I delete them? And have a smooth foam? Thanks a lot

05 June 2016 1,107 7 View

To make flexible polyurethane foam, necessary to observe the mixing process?

To make flexible polyurethane foam, necessary to observe the mixing process? I want to know , the oxygen of the air accumulates in the mix? How is the condition of mixing? Thank you Rezvan

05 June 2016 5,104 8 View

Who knows how can I stabilize the polyurethane foam?

Why the polyurethane foam clings to the side?Also used stabilizing! Thanks a lot

01 February 2016 6,399 3 View

Who can help me please?

I have a powder copper color, but not is copper, a very fine powder and insoluble in water, in the acid does not give me blue green.Cerium may be ?? Tanks a lot

31 December 2015 301 0 View

Who can help me on polyurethane foam that does not remain stable?

What happens when I make polyurethane foam, and the foam does not remain stabl? Thank you

31 December 2015 8,147 8 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Can I multiplex a mouse monoclonal and rat primary for IHC (mouse brain tissue)?

Hi all, I was just wondering if anyone has experience with multiplexing a mouse monoclonal primary and a rat primary. I'm trying to multiplex by incubating them in the same well but was told by a...

06 August 2024 9,710 1 View

How can I find access to heavy metal reference doses from the EPA and WHO websites?

Reference dose and Maximum acceptable concentrations HMs

03 August 2024 8,230 4 View

Interested in a SCOPUS collaboration?

Hi RG family. My team and I are working on some SCOPUS publications and we need co-authors who are willing and capable of undertaking both qualitative and quantitative-based studies. The scope...

02 August 2024 7,843 0 View

Interested in a SCOPUS collaboration?

Hi RG family. My team and I are working on some SCOPUS publications and we need co-authors who are willing and capable of undertaking both qualitative and quantitative-based studies. The scope of...

02 August 2024 8,572 0 View

Does anyone have issues using Prepman Ultra reagent for MicroSeq ID bacterial, fungal and yeast sample preparation?

I have been attempting to extract DNA from Bacterial, Fungal and Yeast banked samples (>1e7 cells) using Prepman Ultra reagent and I seem to be struggling to obtain a sequence. Although the...

01 August 2024 2,079 0 View

Addition of EDTA during the synthesis of copper nanoparticles to prevent it from being oxidized?

I've attempted to use this method to synthesize copper nanoparticles. Copper nanoparticles can be synthesised using a variety of precursor materials. CuSO4, distilled water, NaOH, and EDTA are...

28 July 2024 8,027 3 View

How to scrape off the surface layer of compound sputtering targets as with multiple usage top layer's stoichiometry changes from the original target?

I am experiencing this for the Bi2Se3 sputtering target. Initially, even if the target was 2:3 in Bi : Se, with a few sputtering runs, due to the high escaping tendency of selenium, the top layer...

23 July 2024 1,649 1 View

Can sulfuric acid be used to prepare anthrone reagent when it has oxidized and changed color in reaction to light?

Sulfuric acid has changed color to yellow.

16 July 2024 6,964 0 View

Is the protecting group boc of the amino group stable at 37°C?

I have a small molecule reagent with a boc-protected amino group. Now the reaction needs to be reacted at 37°C for 30 h. Is this protection group stable?

12 July 2024 3,745 2 View