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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Peer reviewed data base

Data source

Reference
Reference Type:
secondary source
Title:
Unnamed
Year:
1986

Materials and methods

Test guideline
Guideline:
other: no data
Principles of method if other than guideline:
vapour pressure weighing machine
GLP compliance:
no
Type of method:
other: measured

Test material

Constituent 1
Chemical structure
Reference substance name:
2,4-dinitrotoluene
EC Number:
204-450-0
EC Name:
2,4-dinitrotoluene
Cas Number:
121-14-2
Molecular formula:
C7H6N2O4
IUPAC Name:
1-methyl-2,4-dinitrobenzene
Constituent 2
Chemical structure
Reference substance name:
2,5-dinitrotoluene
EC Number:
210-581-4
EC Name:
2,5-dinitrotoluene
Cas Number:
619-15-8
Molecular formula:
C7H6N2O4
IUPAC Name:
2-methyl-1,4-dinitrobenzene
Constituent 3
Reference substance name:
626-20-2
IUPAC Name:
626-20-2
Constituent 4
Chemical structure
Reference substance name:
2,6-dinitrotoluene
EC Number:
210-106-0
EC Name:
2,6-dinitrotoluene
Cas Number:
606-20-2
Molecular formula:
C7H6N2O4
IUPAC Name:
2-methyl-1,3-dinitrobenzene
Details on test material:
- Name of test material (as cited in study report): 2,4-dinitrotoluene , 2,5-dinitrotoluene and 2,6-dinitrotoluene, respectively
- Analytical purity: > 99.5 %

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0 hPa
Remarks on result:
other: 2,4-DNT (> 99.5%)
Temp.:
20 °C
Vapour pressure:
0 hPa
Remarks on result:
other: 2,5-DNT (> 99.5%)
Temp.:
20 °C
Vapour pressure:
0 hPa
Remarks on result:
other: 2,6-DNT (> 99.5%)

Any other information on results incl. tables

The vapour pressure range of the 2,4 -DNT and 2,6 -DNT mixture: > 0.000079 hPa - < 0,000149 hPa at 20°C.

The vapour pressure range is deduced form the vapour pressures from the single componentes.

Measured values (hPa):

Temp °C

2,4-DNT

2,5-DNT

2,6-DNT

20

0.788 E-04

3.380 E-04

1.486 E-04

25

1.593 E-04

6.481 E-04

3.182 E-04

30

3.147 E-04

1.216 E-03

6.647 E-04

40

1.151 E-03

4.033 E-03

2.703 E-03

50

3.885 E-03

1.241 E-02

1.008 E-02

60

1.219 E-02

3.573 E-02

3.472 E-02

Applicant's summary and conclusion