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Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
04-04-2018 – 04-04-2018
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 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:
- Name of test material : Poly(oxy-1,2-ethanediyl),α-hydro-ω-hydroxy- Ethane-1,2-diol, ethoxylated
- Molecular formula : C24H50O13
- Molecular weight : 546.651 g/mol
- Smiles notation : C(COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)O
- Substance type : Organic
- Physical state : Liquid
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
289.876
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
213.906
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
259.745
Remarks on result:
other: Highly viscous liquid hence required heating
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
191.672
Remarks on result:
other: Highly viscous liquid hence required heating

Observation Table :              

    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

20°C in ‘Sec’ (Mean Value)

1051.6 sec    

 Time taken to fill 50ml at 40°C

flask in ‘Sec’ (Mean Value)

776 sec 

 Density of fluid in gm/cc

1.1160 gm/cc

1. Calculation of Kinematic Viscosities:

For Test Temperature at 20°C

ν=ct

= 1051.6 × 0.247sec

= 259.7452mm²/sec

For Test Temperature at 40°C

ν=ct

= 776 × 0.247sec

= 191.6720 mm²/sec

2. Calculation of Dynamic Viscosities:

For Test Temperature at 20°C

ν= η/ρ

259.7452 =η 1.1160

η = 259.7452 x 1.1160

= 289.8756 mPa.S

For Test Temperature at 40°C

ν= η/ρ

191.6720 =η/ 1.1160

η = 191.6720 x 1.1160

= 213.9059 mPa.S

Conclusions:
Kinematic viscosity (experimental) of test chemical at 20°C and 40°C was 259.7452 mm²/sec and 191.6720 mm²/s,respectively.
Dynamic viscosity (calculated) of test chemical at 20°C and 40°C was 289.8756 mPa.S and 213.9059 mPa.S, respectively.
Executive summary:

The viscosity determination of Test item was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 20°C and 40°C is 259.7452 mm²/sec and 191.6720 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C was 289.8756 mPa.S and 213.9059 mPa.S, respectively.

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13.08.2012-04.09.2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
other: as mention below
Principles of method if other than guideline:
Measurement of resistance to flow using Redwood/ Ostwald Viscometer.

GLP compliance:
no
Type of method:
other: Redwood/ Ostwald Viscometer
Specific details on test material used for the study:
- Name of test material : Poly(oxy-1,2-ethanediyl),α-hydro-ω-hydroxy- Ethane-1,2-diol, ethoxylated
- Molecular formula : C24H50O13
- Molecular weight : 546.651 g/mol
- Smiles notation : C(COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)O
- Substance type : Organic
- Physical state : Liquid
Key result
Temp.:
other: 30.0°C
Parameter:
dynamic viscosity (in mPa s)
Value:
31.804
Remarks on result:
other: No other detail available
Conclusions:
Viscosity of test chemical at temperature of 30 deg C was determine to be 31.80372 m Pa.s (dynamic).
Executive summary:

Viscosity of test chemical at temperature of 30 deg C was determine to be 31.80372 m Pa.s (dynamic).

Description of key information

The viscosity determination of Test item was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 20°C and 40°C is 259.7452 mm²/sec and 191.6720 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C was 289.8756 mPa.S and 213.9059 mPa.S, respectively.

Viscosity of test chemical at temperature of 30 deg C was determine to be 31.80372 m Pa.s (dynamic).

Key value for chemical safety assessment

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

Additional information

The viscosity determination of Test item was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 20°C and 40°C is 259.7452 mm²/sec and 191.6720 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C was 289.8756 mPa.S and 213.9059 mPa.S, respectively.

Viscosity of test chemical at temperature of 30 deg C was determine to be 31.80372 m Pa.s (dynamic).