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Physical & Chemical properties

Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
no data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
GLP compliance:
no
Type of method:
capillary viscometer (static)
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
3.076
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2.094

 Temperature (°C)  Density (g/cm3)  Viscosity (mPa.s)
 20  0.9356  3.076
 25  0.9312  2.770
 30  0.9276  2.519
 40  0.9193  2.094
Conclusions:
The substance is very fluid.
Executive summary:

The kinematic viscosity of the test substance was measured with a procedure similar to the OECD114 guideline, capillary method.

At least three determinations were performed at each temperature (20, 25, 30 and 40°C), and the average value was converted to dynamic viscosity from density, determined in the same study.

The viscosity of exo-THDCPD (JP-10) was determined as 3.076 mPa.s at 20°C and 2.094 mPa.s at 40°C.

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
no data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Remarks:
Procedure and sample identification insufficiently described.
Qualifier:
according to guideline
Guideline:
ASTM D-445 (Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
GLP compliance:
no
Type of method:
capillary viscometer (static)
Temp.:
other: -45°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
25
Temp.:
other: -18°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
10
Temp.:
other: 0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
6
Temp.:
other: >30°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
3
Conclusions:
The kinematic viscosity of THDCPD was determined as 3 mm2/s at for temperature > 30°C.
Potential for Aspiration hazard.
Executive summary:

The kinematic viscosity of THDCPD was determined as 3 mm2/s at for temperature > 30°C.

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
no data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
GLP compliance:
no
Type of method:
capillary viscometer (static)
Temp.:
other: 25°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2.739
Conclusions:
The substance is very fluid.
Executive summary:

The kinematic viscosity of the test substance was measured with a procedure similar to the OECD114 guideline, capillary method.

Three determinations were performed, and the average value was converted to dynamic viscosity from density, determined in the same study.

The viscosity of THDCPD was determined as 2.739 mPa.s at 25°C.

Description of key information

The viscosity of THDCPD was stated as: 3.076 mPa.s at 20°C and 2.094 mPa.s at 40°C, corresponding to kinematic viscosity of 3.29 mm2/s at 20°C, and 2.28 mm2/s respectively.

Potential for Aspiration hazard.

Key value for chemical safety assessment

Viscosity:
3.076 mPa · s (dynamic)
at the temperature of:
20 °C

Additional information

An experimental study and two reliable literature sources are available, and provide consistent values. All are suitable for qualitative assessment of potential for aspiration hazard, based on low viscosity measured (below the threshold value), but the reference Wei 2010 was selected as key study, as experimental temperatures correspond to the guideline requirements.