Registration Dossier
Registration Dossier
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EC number: 200-291-6 | CAS number: 56-84-8
Explosiveness
Administrative data
Link to relevant study record(s)
Description of key information
Method: Test conditions correspond to the ones defined in: ISO standard 61841 (or French standard NF EN 261841 of June 1991).
Key value for chemical safety assessment
- Explosiveness:
- non explosive
Additional information
Justification for classification or non-classification
* Trials were carried out in a closed spheric 20 l tank to
characterize the violence of the explosion according to the
dust cloud concentration.
The explosion maximum overpressure (P max) and the maximum
speed in pressure rise (SPR) were measured.
For the dust cloud concentration (in g/m3) producing the
highest value for SPR (expressed in bar/s) the value of the
coefficient Kst (expressed in bar*m/s), corrected for a
volume of 1 m3 is determined according to the law:
1/3
Kst = SPR * V
with V = 0.020 m3
Nota:
* Coefficient Kst as defined in: - VDI 3673 recommendation of Oct. 1983,
- ASTM E 1336-88 standard.
* K max as defined in: - the experimental standard AFNOR U 54-540 of Dec. 1986,
- the European standard NF EN 26 184-1 of June 1991.
Results:
- P max (bar) = 6.8
- SPR (bar/s) = 355
- K max or Kst (bar*m/s) = 96
- Explosion category = St1 (weak explosion)
(according to VDI 3673)
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