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EC number: 429-330-7
CAS number: -
In two different reports three samples were tested:Report 1:PDTN sample CFC 5512, 10% of the particles is smaller than 90 µm, 50% of the particles is smaller than290 µm and 90% of the particles is smaller than490 µm PDTN sample CFC 5514, 10% of the particles is smaller than 55µm, 50% of the particles is smaller than 230 µm and 90% of the particles is smaller than 430 µm .In addition, 0.6 to 1 %of the PDTN particles is smaller than 10µm, and therefore, only a small fraction is considered respirableReport2:PDTN sample JNN98038, 0.4 % of the particles is smaller than 63 µm, 5.2 % of the particles is between 63 and 250 µm and 94.4% of the particles is larger than 250 µm.
The particle size distribution is very
dependent on the production and handling of the samples. For instance
clogging, moisture and aging can cause a change in particle size.
Especially for this sample - being a wet cake - stability in particle
size distribution is not the case.
For the different samples tested - in summary
- only 0.6 to 1% of the PDTN particles is smaller than 10 µm or 0.4% of
the particles is smaller than 63 µm. As such only a small fraction is
considered respirable. Moreover being a wet cake the substance is not
likely to swirl.
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