Registration Dossier
Registration Dossier
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EC number: 212-736-1 | CAS number: 865-33-8
Explosiveness
Administrative data
Link to relevant study record(s)
- Endpoint:
- explosive properties of explosives
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties
- Endpoint:
- explosiveness, other
- Remarks:
- dust explosibility
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Remarks:
- German standard method
- Qualifier:
- according to guideline
- Guideline:
- other: VDI-Guideline 2263, part 1, chapter 2.1 Dust explosibility
- Version / remarks:
- revised edition, SOP SPZ-133
- GLP compliance:
- no
- Interpretation of results:
- other: Dust explosion class: St 1
- Remarks:
- St 1 (0 - 200 bar * m * s-1)
Referenceopen allclose all
Maximum explosion pressure: 6.6 bar at 750 g/m³ and 1000 g/m³
Maximum rate of pressure rise: 78.8 bar/s at 750 g/m³
Lower explosible limit: 60 g/m³
KSt value: 76.1 bar * m * s-1
Dust explosion class: St 1 (0 - 200 bar * m * s-1)
Potassium methanolate (KM-P), Lot.-Nr. 03090893 is classified in its present particle size as dust explosive. On the basis of its explosion characteristics the dust explosion class of the sample is assigned as St1 (0-200 bar·m·s·1). The test of inertisation with nitrogen for the suppression of the dust explosion showed a limiting oxygen concentration of 10.5 vol.% of potassium methanolate. The minimum ignition energy of potassium methanolate powder, which was determined by the inductance in a discharge circuit, ranges between 10 mJ and 30 mJ. Based on this value, the sample is classified as "normal sensitivity". The ignition temperature of the dispersed dust of KM-P is 360 °C.
Description of key information
Waiving: the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties
Key value for chemical safety assessment
- Explosiveness:
- non explosive
Additional information
Potassium methanolate is classified in its present particle size as dust explosive. On the basis of its explosion characteristics, the dust explosion class of the sample is assigned as St 1 (0-200 bar·m·s·1).
Justification for classification or non-classification
St 1 for dust explosibility in the present particle size (D50: 44 µm).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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