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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
January 9 2004 to January 22 2004
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
conducted under GLP conditions
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: OECD Guideline 104
Version / remarks:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: EU Method A.4
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
dynamic method
Specific details on test material used for the study:
Aspect: colourless to pale yellow liquid
Lot No: TQT 0300497
Purity (GC):
- 65.7 % (E isomer)
- 25.2 % (Z isomer)
Expiration date: November 28, 2004
Key result
Boiling pt.:
531 K
Atm. press.:
1 013 hPa

The corrected results are tabulated below:

 

Pressure

[hPa]

 

Temperature 1

[K]

 

Temperature 2

[K]

 

10.7

 

394

 

395

 

20.0

 

408.5

 

408

 

40.0

 

403

 

429

 

80.2

 

442

 

443

 

119.9

 

455

 

456

 

159.5

 

464.5

 

464.5

 

Temperature 1: measured when increasing the pressure

Temperature 2 : measured when decreasing the pressure.

 

Means of temperatures 1 and 2 were calculated, results were reported on a log P versus 1/(T-43) diagram (Antoine’s equation: log P = A + B/(C + T) with C = - 43 according to Cox, where T is in Kelvin), see Appendix 2. The linear regression parameters were calculated (least squares method):

 

           log P = A + B * 1000/(T - 43)

 

           A = 8.12571, B = - 2.49749 (R2= 0.99523, coefficient of determination).

 

This relationship was used to calculate by extrapolation the normal boiling point, i.e. the boiling temperature corresponding to 1013 hPa.

 

The result is : 531 K (258 °C).

 

The 95 % confidence limits are : 518 K - 544 K (245 °C - 271 °C).

Conclusions:
 Normal boiling temperature of KARMALONE : 531 K (258 °C)
The 95 % confidence limits are : 518 K - 544 K (245 °C - 271 °C).
Executive summary:

The vapour pressure curve as a function of temperature was determined with KARMALONE according to the OECD method No. 104 (dynamic method) and used to extrapolate the normal boiling temperature.

 

Normal boiling temperature of KARMALONE : 531 K (258 °C)

The 95 % confidence limits are : 518 K - 544 K (245 °C - 271 °C).

Description of key information

The vapour pressure curve as a function of temperature was determined with KARMALONE according to the OECD method No. 104 (dynamic method) and used to extrapolate the normal boiling temperature.

 

Normal boiling temperature of KARMALONE : 531 K (258 °C)

The 95 % confidence limits are : 518 K - 544 K (245 °C - 271 °C).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
531 K

Additional information