Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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

Viscosity

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard OECD test guideline
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
GLP compliance:
no
Type of method:
other: Redwood Viscometer No. -1
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
21.25
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
17.29
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
22.12
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
18

TEST DESCRIPTION AND RESULT

Method Details

Observations

Remarks if, any

Guideline

OECD - 114

 

 

Method of measurement

Redwood Viscometer No. -1

 

Principle of method

Measurement of resistance to flow using RedwoodViscometer No. 1

 

Temperature at which the testing is done

20°C and 40°C

 

 

 

Observations

Time taken to fill 50ml flask at 20°C in ‘Sec’ (Mean Value)

80.5 sec

Time taken to fill 50ml at 40 °C flask in ‘Sec’ (Mean Value)

65.5 sec

Density of fluid in gm/cc

1.0414 gm/cm3

CALCULATIONS:

                    ν=ct-----------------------------------------(i)

Where, ν= Kinematic viscosity

c= Viscometer constant

t= time of flow in seconds (Redwood second)

 

For Redwood Viscometer- I, the values for the constants are as below:

 

Time of flow,t

C

40 to 85 seconds

0.264

85 to 2000

0.247

 

ν= η/ρ------------------------------ (ii)

 

Where, ν= Kinematic viscosity

              η= Dynamic viscosity

               ρ= Density of fluid

 

1.      Calculation of Kinematic Viscosities:

 

For Test Temperature at 200C

               ν=ct

                =0.264 x 80.5sec             

             = 21.25mm2/sec

 

For Test Temperature at 400C

ν=ct

               =0.264 x 65.5

               = 17.29mm2/sec

 

2.      Calculation of Dynamic Viscosities:

 

For Test Temperature at 200C

               ν= η/ρ

               21.25= η/1.0414               

              η = 21.25 x 1.0414               

                 = 22.12mPa.S

 

For Test Temperature at 400C

               ν= η/ρ

               17.29= η/1.0414               

              η = 17.29 x 1.0414               

                 = 18.00mPa.S

Result:

Sr. No.

Temperature of Sample (°C)

Time taken to fill the 50 ml of flask in ‘seconds’

Kinematic Viscosity in mm2/s

Density in gm/cc

Dynamic (or) Absolute Viscosity mPa.S

1.

20°C

80.5 sec

21.25mm2/sec

1.0414 gm/cc

22.12mPa.S

2.

40°C

65.5 sec

17.29mm2/sec

1.0414 gm/cc

18.00mPa.S

 

Conclusions:
Kinematic viscosity (experimental) of test chemical at 20°C and 40°C was determined to be 21.25 mm²/sec & 17.29 mm²/s and Dynamic viscosity of the test chemical was calculated to be 22.12 mPa.S & 18.00 mPa.S at 20°C and 40°C, respectively.
Executive summary:

The viscosity determination of test chemical was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of test chemical at 20°C and 40°C was determined to be 21.25 mm²/sec & 17.29 mm²/s and Dynamic viscosity of the test chemical was calculated to be 22.12 mPa.S & 18.00 mPa.S at 20°C and 40°C, respectively.

Description of key information

On the basis of the available data from study report, the viscosity determination of test chemical was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of test chemical at 20°C and 40°C was determined to be 21.25 mm²/sec & 17.29 mm²/s and Dynamic viscosity of the test chemical was calculated to be 22.12 mPa.S & 18.00 mPa.S at 20°C and 40°C, respectively.

Key value for chemical safety assessment

Viscosity:
21.25 mm²/s (static)
at the temperature of:
20 °C

Additional information

On the basis of the available data from study report, the viscosity determination of test chemical was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of test chemical at 20°C and 40°C was determined to be 21.25 mm²/sec & 17.29 mm²/s and Dynamic viscosity of the test chemical was calculated to be 22.12 mPa.S & 18.00 mPa.S at 20°C and 40°C, respectively.