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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
03-05-2018 – 03-05-2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Principles of method if other than guideline:
The viscosity determination of Test item Castor oil, ethoxylated (CAS No. 61791-12-6 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1.
GLP compliance:
no
Type of method:
other: Redwood Viscometer No. 1
Specific details on test material used for the study:
- IUPAC Name: Castor Oil, ethoxylated
- Smiles: CCCCCCC(CC=CCCCCCCCC(=O)OCC(C(=O)OCCCCCCCC=CCC(O)CCCCCC)OC(=O)CCCCCCC=CCC(O)CCCCCC)OCCOCCOCCOCCOCCO
- Molecular formula:C65H120O14
- Substance type:Organic
- Physical state:Liquid
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
252.088
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
other: 60.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
243.369
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
246.719
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
other: 60.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
238.185
Remarks on result:
other: Highly viscous liquid hence required heating

              

    Method Details  Observations  Remarks if, any
 Guideline  OECD 114    

Method of

measurement

 Redwood Viscometer No. -1

 

 

 Principle of method

 The flow of test item under gravity

through a capillary using Redwood

Viscometer No. 1

    

 Temperature at which

the testing was done

40°C and 60°C 

 

 

 Observations      

    Time taken to fill 50ml flask at

40°C in ‘Sec’ (Mean Value)

1020.6 sec    

 Time taken to fill 50ml at 60°C

flask in ‘Sec’ (Mean Value)

985.3 sec 

 Density of fluid in gm/cc

  0.9787 gm/cc

1. Calculation of Kinematic Viscosities:

For Test Temperature at 40°C

ν=ct

= 1020.6 × 0.247sec

= 252.0882mm²/sec

For Test Temperature at 60°C

ν=ct

= 985.3 × 0.247sec

= 243.3691 mm²/sec

2. Calculation of Dynamic Viscosities:

For Test Temperature at 40°C

ν= η/ρ

252.0882 =η 0.9787

η = 252.0882 x 0.9787

= 246.7187 mPa.S

For Test Temperature at 60°C

ν= η/ρ

243.3691 =η/ 0.9787

η = 243.3691 x 0.9787

= 238.1853 mPa.S

Conclusions:
Kinematic viscosity (experimental) of Castor oil, ethoxylated( CAS No. 61791-12-6) at 40°C and 60°C was 252.0882 mm²/sec and 243.3691 mm²/s,respectively.
Dynamic viscosity (calculated) of Castor oil, ethoxylated( CAS No. 61791-12-6) at 40°C and 60°C was 246.7187 mPa.S and 238.1853 mPa.S, respectively.
Executive summary:

The viscosity determination of Test item Castor oil, ethoxylated (CAS No. 61791-12-6 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 40°C and 60°C was 252.0882 mm²/sec and 243.3691 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 40°C and 60°C is 246.7187 mPa.S and 238.1853 mPa.S, respectively.

Description of key information

Kinematic viscosity (experimental) of Castor oil, ethoxylated( CAS No. 61791-12-6) at 40°C and 60°C was 252.0882 mm²/sec and 243.3691 mm²/s,respectively.

Dynamic viscosity (calculated) of Castor oil, ethoxylated( CAS No. 61791-12-6) at 40°C and 60°C was 246.7187 mPa.S and 238.1853 mPa.S, respectively.

Key value for chemical safety assessment

Viscosity:
246.719 mPa · s (dynamic)
at the temperature of:
40 °C

Additional information

The viscosity determination of Test item Castor oil, ethoxylated (CAS No. 61791-12-6 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 40°C and 60°C was 252.0882 mm²/sec and 243.3691 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 40°C and 60°C is 246.7187 mPa.S and 238.1853 mPa.S, respectively.