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Flash point

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Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to
Guideline:
other: DIN 51758
GLP compliance:
no
Type of method:
closed cup
Flash point apparatus:
Pensky-Martens apparatus
Dynamic viscosity of test material:
average value (n=6): 7945 mPa
range: 6200 - 9385 mPa
Specific details on test material used for the study:
- Name of test material (as cited in study report): Novares TL 10; CAS-no. 71392-83-5 (Hydrocarbons, C9- unsaturated, polymerized)
- Composition of test material, percentage of components: see Section 1.2 Composition
- Lot/batch No.: 28724
- Stability under test conditions: no measured data; based on chemical structure assumed to be stable
- Storage condition of test material: room temperature, exclusion of light
Key result
Flash point:
166 °C
Atm. press.:
1 013 hPa

- Lot/batch No.: 28724

Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to
Guideline:
other: DIN 51758
GLP compliance:
no
Type of method:
closed cup
Flash point apparatus:
Pensky-Martens apparatus
Dynamic viscosity of test material:
average (n = 7): 71 mPa
range: 53 - 113 mPa
Specific details on test material used for the study:
- Name of test material (as cited in study report): Novares L 100; CAS-no. 71302-83-5 (Hydrocarbons, C9- unsaturated, polymerized)
- Composition of test material, percentage of components: see Section 1.2 Composition
- Lot/batch No.: 24106 and 28738
- Stability under test conditions: no measured data; based on chemical structure assumed to be stable
- Storage condition of test material: room temperature, exclusion of light
Key result
Flash point:
171 °C
Atm. press.:
1 013 hPa
Key result
Flash point:
162 °C
Atm. press.:
1 013 hPa
Endpoint:
flash point of flammable liquids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
according to
Guideline:
other: DIN 51758
GLP compliance:
no
Type of method:
closed cup
Flash point apparatus:
Pensky-Martens apparatus
Dynamic viscosity of test material:
average (n = 6): 909 mPa s
range: 800 - 1000 mPa s
Specific details on test material used for the study:
- Name of test material (as cited in study report): Novares L 800; CAS-no. 71302-83-5 (Hydrocarbons, C9- unsaturated, polymerized)
- Composition of test material, percentage of components: see Section 1.2 Composition
- Lot/batch No.: 21633 and 22099
- Stability under test conditions: no measured data; based on chemical structure assumed to be stable
- Storage condition of test material: room temperature, exclusion of light
Key result
Flash point:
169 °C
Atm. press.:
1 013 hPa
Key result
Flash point:
158 °C
Atm. press.:
1 013 hPa

Description of key information

The UVCB substance ‘Naphtha (petroleum), steam-cracked, C8-10 aromatic hydrocarbon fraction, alkylated and oligomerised’ (NAF-AO) (see Chapter 1) is produced in different specifications. Flashpoints of different products range from 158 to 171 °C at 1013 hPa.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
158 °C

Additional information

Studies following the national test guideline DIN 51758 were conducted to determine the flash point of the substance NAF-AO. Due to the UVCB nature of the substance, there is a range of flash points measured for different products and batches. The range of flashpoints begins at 158 °C and extends to 171 °C at 1013 hPa. The lowest value is taken as key value for the chemical safety assessment.