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Diss Factsheets

Physical & Chemical properties

Explosiveness

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Administrative data

Endpoint:
explosiveness, other
Remarks:
dust explosion class
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The study is not GLP and does not follow the OECD Guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Principles of method if other than guideline:
Maximun explosion pressure and maximun rate of pressure rise were determined in a Kuhner standardized apparatus with a volume of 20 liters. Maximun rate of pressure rise is used to obtain Kst value.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
6-cyclohexyl-1-hydroxy-4-methylpyridin-2(1H)-one, compound with 2-aminoethanol (1:1)
EC Number:
255-464-9
EC Name:
6-cyclohexyl-1-hydroxy-4-methylpyridin-2(1H)-one, compound with 2-aminoethanol (1:1)
Cas Number:
41621-49-2
Molecular formula:
C12H17NO2.C2H7NO
IUPAC Name:
6-cyclohexyl-1-hydroxy-4-methylpyridin-2(1H)-one, compound with 2-aminoethanol (1:1)
Test material form:
solid: particulate/powder

Results and discussion

Results of test series for explosivesopen allclose all
Test series:
other: Dust explosive properties
Method:
other: Kuhner standardized test apparatous
Parameter:
other: Maximun Explosion Pressure
Remarks:
(bar)
Value:
8.9
Result:
result is considered "+" (positive)
Remarks on result:
other: at 500 g/m3
Test series:
other: Dust explosive properties
Method:
other: Kuhner standardized test apparatous
Parameter:
other: Maximun Rate of Pressure Rise
Remarks:
(bar/s)
Value:
1 238
Result:
result is considered "+" (positive)
Remarks on result:
other: at 750 mg/m3
Test series:
other: Dust explosive properties
Method:
other: Kuhner standardized test apparatous
Parameter:
other: Kst - dust deflagration index
Remarks:
(m*bar/s)
Value:
336
Result:
result is considered "+" (positive)
Test series:
other: Dust explosive properties
Method:
other: Kuhner standardized test apparatous
Parameter:
other: Minimun Explosion Concentration
Remarks:
(g/m3)
Value:
30
Result:
result is considered "+" (positive)
Remarks on result:
other: 30 g/m3 < MEC < 60 g/m3

Any other information on results incl. tables

Explosive values, increasing the powder concentration, are reported in teh following table:

 Concentration (g/m^3)  Pressure (bar)  dP/dt (bar/s)
 20  0.0  0
 30  0.0  0
 60  3.1  329
 125  4.9  413
 250  7.6  851
 500  8.9  976
 750  8.7  1238
 1250  7.9  1195
 1500  7.5  746

Max. Explosion Pressure: Pmax 8.9 bar at 500 g/m^3

Max. Rate of Pressure Rise: (dP/dt)max 1238 bar/s at 750 g/m^3

MEC (Minimum Explosion Concentration) 30 g/m^3 < MEC < 60 g/m^3

Explosion Class = 3

The maximum explosion pressure obtainable is 8.9 bar at a concentration of 500 g/m^3, while the maximum rate of pressure rise is 1238 bar/s at a concentration of 750 g/m^3.

Applicant's summary and conclusion

Interpretation of results:
study cannot be used for classification
Conclusions:
Dust explosion class = 3