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EC number: 949-790-7
CAS number: -
Solubility Test for Particle Size
Preliminary Solubility And
Dispersability For Particle Size Analysis
The test item was well dispersed in both
solvents tested. For the full solubility and dispersability test both
solvents were selected.
Solubility And Dispersability Test For
Particle Size Analysis
Dispersant used: 2-Propanol & Silicone Oil
The test item proved to be insoluble and
well dispersed in both solvents. Both solvents were therefore trialled
as the dispersant.
During the method development phase of the
analysis trials were conducted using the small volume (wet) module only.
The trials were conducted using 2-propanol and silicone oil as the
dispersant. The results of these trials indicated that the most
appropriate test and material parameters to obtain the optimum
Module : Small volume module
Dispersant : Silicone oil
Dispersion speed : 1800 rpm
Refractive index (sample) : 0.000 n
Absorption : 0.000 AU
Analysis Model : General Purpose
Using the identified parameters, the
particle size was analysed over the range 0.01 µm to 3500 µm. The
results of the formal analysis are presented in Table 10:1. In addition,
a graph of volume (%) versus Particle Diameter (µm), and full particle
size distribution, is provided in Graph 10.A (Average of 5 runs).
The coefficient of variation for d50 is
less than 3 %; d10 and d90 are less than 5 %. Thus repeatability of the
characteristic particles in the size distribution is within the
acceptable limits as per the ISO 13320-1 test standard.
Particle Size Distribution test was
performed under GLP conditions on the test substance. In conclusion,
the coefficient of variation for d50 is less than 3 %; d10 and d90 are
less than 5 %. Thus repeatability of the characteristic particles in the
size distribution is within the acceptable limits as per the ISO 13320-1
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