Why does zinc chloride salt powder melt at 50 degrees?

I have a question about zinc chloride salt powder. When I put zinc chloride powder in an oven at a temperature of 50 degrees to dry it (because it may absorb moisture), after about an hour, the...

26 November 2020 3,751 3 View

What kind of microscope should be used to investigate the stability of the Emulsion Liquid Membrane(W/O/W)?

I want to know what kind of microscope should I use to check the stability of dual emulsions (W/O/W)? upright or invert? Fluorescence or polarized or ordinary light? What field of vision should I...

12 November 2020 6,044 3 View

How copy molecules in random position and orientation in material studio?

Hi everybody. I want to simulate a super molecule in a solvent like heptane in material studio. Solvent molecules are about 700 and are around the super molecule. How can I simulate these...

07 September 2018 7,643 4 View

Howdo you complete the drying of alcoholic extract?

when we prepare a hydroalcoholic extractof a plant, after evaporation in vacuum condition, we do not have a completely dried extract. What do you do for completely drying these extracts?

28 January 2018 8,328 2 View

Production and stability of WC-Co powder suspension?

I appreciate any information regarding your experience with dilute suspension (

14 January 2014 7,192 7 View

Does anyone know a simple protecting group for thiol in the presence of NH group?

We want to protect the S of methimazole, does anyone have any suggestion?

22 November 2013 4,267 7 View

What is your idea about "negative intercept" in calibration curve in HPLC? Can you recommend a good book on this subject?

What is your idea about "negative intercept" in calibration curve in HPLC? Can you recommend a good book on this subject?

08 March 2013 485 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 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