Registration Dossier
Registration Dossier
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EC number: 700-534-0 | CAS number: 117172-56-2
Endpoint summary
Administrative data
Description of key information
Additional information
Appearance
Intermediate 36 is a light
yellow, odourless liquid silicium-organic substance.
Melting point, Boiling point, and Density
The melting range of Intermediate 36 was determined according to EU
Method A.1 (Melting / Freezing Temperature), resulting in a melting
range of -31.8 to -21.2 ± 0.5°C, i.e. 241.4 to 252.0 K.
Intermediate 36 was tested for the boiling point according to EU Method
A.2 (Boiling Temperature). The test was carried out at 97.2 kPa
atmospheric pressure. Using a linear heating rate of 0.5 °C/min, the
boiling point of Intermediate 36 was found to be 264.1 +/- 0.05 °C (95
% confidence interval), i.e. 537.3 K.
The relative density of Intermediate 36 was determined to be 1.08 g/cm³
at 20°C using a digital oscillating densitometer.
Particle size distribution
Intermediate 36 is a liquid and therefore the test on particle size
distribution is not applicable.
Surface tension
As Intermediate 36 does not contain chemical
groups indicating surface active properties experimental determination
was not conducted
Flash point
The measured flash points of Intermediate 36 were 163.7 °C and
164.7 °C, resulting in a mean value of 164 °C.
Auto flammability
The auto-ignition temperature of Intermediate 36 was determined to
be 261 °C.
Flammability (contact with water) and Pyrophoric properties
The chemical structure of Intermediate 36 does not contain chemical
groups, capable of causing the development of a dangerous amount of
(flammable) gas (e.g. hydrogen), when in contact with damp air or water.
Therefore test substance is not considered highly flammable (contact
with water).
No ignition and charring of the filter paper occurred in any of the two
main tests performed – neither in the six tests following the first main
test, nor in the succeeding three performed following the second main
test as described above. Intermediate 36 proved to be not pyrophoric.
Explosiveness
The test method for the determination of the explosive properties of
a substance as described for liquid materials in Test Guideline A.14 of
Commission Regulation (EC) No 440/2008, Part A, Methods for the
Determination of Physico-Chemical Properties was replaced by a
theoretical based evaluation. The chemical structure of Intermediate 36
does not contain chemical groups or individual structural components,
which may lead to the conclusion that explosive properties have to be
expected.
Oxidising properties
Considering the chemical structure and individual structural
components, oxidising properties are not expected for Intermediate 36.
None of the oxygen atoms impose any oxidising properties on the
molecule. In addition, from the silicium contained no definitive
oxidising properties are to be expected, which is supported by the
experience in handling and use of the substance available.
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