Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in... | Contact experts in Powders to get answers
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Questions related to Powders
If we measured the X-ray diffraction of single crystal and then we powdered the single crystal to measure the X-ray diffraction of the powder, is the two scans will be the same and have the same...
28 January 2022 7,026 1 View
Hello. I have been doing my thesis on bioglass (SiO-Na2O-CaO-P2O5) and I did DTA and the obtained curve looks like this. But I don't know how to find Tg and Tc and melting point from this curve....
28 January 2022 961 5 View
For antifungal susceptibility tests, from which company do you usually purchase echinocandins disk and powder?
27 January 2022 9,128 0 View
Hello, during the experiment, I need to disperse the iodine metal powder in the pdms. Is there a solvent that melts both pdms and powder? If there isn't, I'm going to physically disperse the...
26 January 2022 3,876 3 View
We produce ferrosilicon used by submerge method. In this method we use silicon, carbon and iron oxide. W have a problem. 18 hours after end of produce, ferrosilicon become powder. Why? How can I...
26 January 2022 7,875 3 View
Hello everyone, I am learning basics of design of experiments..As resources are major constrains for me right now, I have decided to go with fractional factorial design namely Taguchi Designs..I...
26 January 2022 3,513 9 View
I´m wondering, whether and where the dust and airborne particles would finally land and be accumulated, like (re-)suspended sediments do in freshwater bodies and oceans? And is there a way to...
24 January 2022 3,726 4 View
Remediation of hydrocarbon impacted sites
24 January 2022 3,446 5 View
I found it during the autopsy of Cepaea nemoralis. Thank you for all your help!
24 January 2022 3,688 2 View
Most MSDS says that KBr is hygroscopic. Therefore, does it need to be stored in an inert (Ar, N) environment? Or storing it in a drybox is suffice? Appreciate your experience in storage and...
21 January 2022 8,400 3 View
I want to solve a problem to use those.
21 January 2022 6,689 11 View
I want to change the oxidation state of Nb2O5 powder sample to lower number like +4 or +3. in this case I'm planned to dissolve Nb2O5 in water and added reducing agent like ascorbic acid ? do I...
20 January 2022 7,471 11 View
I have at my disposal recombinant GFP. I would like to treat a culture dish (tissue culture-treated surface) with GFP so that it adheres to the surface, for culturing mammalian cell lines on top....
20 January 2022 3,072 2 View
Greeting, As you can see in the figure attached, I want to ask, if I have a sample that has been immersed for few days already. What is the suitable duration and stab. (mV/s) I should use for...
19 January 2022 7,069 11 View
Hello i am trying to extrude PMMA (powder, from SIGMA) using a twin screw extruder. 220C and 100rpm. however, the material is coming out black (and also very slowly) pmma shouldn’t degrade until...
18 January 2022 2,213 1 View
Hello. I have alumina powder that suppose to has a D50 of 5 microns but some of the powder comes together and forms hard agglomerates up to 5 mm in diameter. To make the powder looser I tried...
18 January 2022 8,683 4 View
Dear all. I am looking for a reason for my research, which strange looking bumps appeared onto zirconia grain structure. The material i am using is 5.5 mol % yttria-stabilized zirconia (ZPEX...
18 January 2022 802 8 View
I am new in the computational research line. So, I just want to start measuring the thermal conductivity and electrical conductivity of some doped materials. I need to know which software do I...
18 January 2022 5,336 3 View
Hello everyone, I have metal oxide powder doped by two inert oxides with different ratios (total doping weight is 40 wt%). I did XRD test to identify the phases, and all phases were obtained. My...
17 January 2022 7,143 5 View
I am not able to develop a single crystal by the available methods. Can anyone please suggest how we can elucidate the chemical structure of the metal complex with powder XRD? Nowadays, almost...
15 January 2022 3,101 7 View
Trying to optimize mechanical properties of cast steel through heat treatment and would like to find any theoretical methods to generate a hypothesis defining final mechanical properties.
14 January 2022 7,145 2 View
Absorption constant of metal hydride
14 January 2022 3,415 4 View
Actually i wonder whether NMC811 is more conductive than lets say NMC523, or vice versa. Can we say as nickel content increase, powder conductivity decreases or increases? thanks in advance
13 January 2022 2,576 1 View
Dear Colleagues. I read some literature about tackifier resin. They mention a fact that a tackifier resin can increase the tackiness properties of a polymer-based adhesive. From them, I...
13 January 2022 5,585 4 View