2-nitrotoluene

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

weight of evidence

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Justification for type of information:

Due to insufficient reporting of the experimental details, this study was rated with a Klimisch score of 4 (‘not assignable’). As none of the available studies can serve as a key study with a sufficiently detailed reporting justifying a Klimisch score of 1 or 2 for the given endpoint, several independent sources were used in a weight of evidence approach. The combined data from handbooks or collection of data provide experimental values in a similar range, supporting the reliability of the result.

Principles of method if other than guideline:

secondary peer reviewed source, valid collection of data

GLP compliance:

not specified

Type of method:

closed cup

Specific details on test material used for the study:

- Name of test material (as cited in study report): o-Nitrotoluene
- Analytical purity: not specified

Flash point:

95 °C

Atm. press.:

1 013 hPa

Executive summary:

NIOSH, 2009

The flash point (closed cup) of 2-nitrotoluene is determined to be 95 °C at atmospheric pressure (1013 hPa).

Description of key information

The individual study reports (data from handbooks or collection of data) show some deficiencies with respect to the comprehensiveness of the experimental details. Therefore, a reliability of 1 or 2 and thus adequacy as key study was not assignable for any of the individual studies. Consequently, the studies were assigned a Klimisch score of 4 (according to guidance document R.4, ‘not assignable: studies or data […] which are only listed in short abstracts or secondary literature (books, reviews, etc.)). As the individual studies report values are in a similar range, collectively, these studies can be used to conclude on this endpoint and to satisfy the information requirement.

The flash point of 2-nitrotoluene was determined in a series of experimental studies and found to be in the range of  91-106 °C:

NIOSH, 2009

The flash point (closed cup) of 2-nitrotoluene is determined to be 95 °C at atmospheric pressure (1013 hPa).

HSDB, 2009

The flash point (open cup) of 2-nitrotoluene is determined to be 95 °C. Atmospheric pressure was not reported. The value is assumed to be measured under normal atmospheric conditions.

Ullmann (Both, G., 2005)

The flash point (closed cup) of 2-nitrotoluene is determined to be 91 °C. Atmospheric pressure was not reported. The value is assumed to be measured under normal atmospheric conditions.

Kirk-Othmer, 2005 (Dugal, M., 2005)

The flash point of 2-nitrotoluene is determined to be 106 °C. Atmospheric pressure was not reported. The value is assumed to be measured under normal atmospheric conditions.

Lide, 2002

The flash point of 2-nitrotoluene is determined to be 106 °C. Atmospheric pressure was not reported. The value is assumed to be measured under normal atmospheric conditions.

Roempp, 2009

The flash point of 2-nitrotoluene is determined to be 106 °C. Atmospheric pressure was not reported. The value is assumed to be measured under normal atmospheric conditions.

The value reported in NIOSH 2009 was chosen as key value for chemical safety assessment, as the corresponding atmospheric pressure was reported.

 

Key value for chemical safety assessment

Flash point at 101 325 Pa:

95 °C