Phenethyl phenylacetate

Viscosity

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 test guidelines

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:

35.938

Remarks on result:

other: no other details mentioned

Key result

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

21.983

Remarks on result:

other: no other details mentioned

Key result

Temp.:

20°C

Parameter:

dynamic viscosity (in mPa s)

Value:

38.703

Remarks on result:

other: no other details mentioned

Key result

Temp.:

40°C

Parameter:

dynamic viscosity (in mPa s)

Value:

23.68

Remarks on result:

other: no other details mentioned

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)	145.5 sec
	Time taken to fill 50ml at 40 °C flask in ‘Sec’ (Mean Value)	89 sec
	Density of fluid in gm/cc	1.0772 g/cm^3

 

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

                = 0.247 x 145.5sec

                = 35.938mm²/sec

 

  For Test Temperature at 40⁰C

ν=ct

               = 0.247 x 89sec

               = 21.983mm²/s

 

2.      Calculation of Dynamic Viscosities:

 

For Test Temperature at 20⁰C

               ν= η/ρ

               35.938 = η/1.0772

               η = 35.938 x 1.0772           

                 = 38.703mPa.S

 

For Test Temperature at 40⁰C

               ν= η/ρ

               21.983= η/1.0772

               η = 21.983 x 1.0772

                 = 23.680mPa.S

 

Result:

Sr. No.	Temperature of Sample (°C)	Time taken to fill the 50 ml of flask in ‘seconds’	Kinematic Viscosity in mm^2/s	Density in gm/cc	Dynamic (or) Absolute Viscosity mPa.S
1.	20°C	145.5 sec	35.938mm^2/sec	1.0772 g/cc	38.703mPa.S
2.	40°C	89 sec	21.983mm^2/sec	1.0772 g/cc	23.680mPa.S

Conclusions:

Under the test condition, the kinematic viscosity (experimental) of test chemical at 20°C and 40°C was determined to be 35.938 mm2/sec and 21.983mm2/s, respectively and the dynamic viscosity (calculated) of test chemical at 20°C and 40°C was determined to be 38.703 mPa.S and 23.680 mPa.S, respectively.

Executive summary:

The viscosity determination of test chemical was done as per the test guideline OECD 114 using Redwood Viscometer . Under the test condition, the kinematic viscosity (experimental) of test chemical at 20°C and 40°C was determined to be 35.938 mm²/sec and 21.983mm²/s, respectively and the dynamic viscosity (calculated) of test chemical at 20°C and 40°C was determined to be 38.703 mPa.S and 23.680 mPa.S, respectively.

Description of key information

The viscosity determination of test chemical was done as per the test guideline OECD 114 using Redwood Viscometer No. Under the test condition, the kinematic viscosity (experimental) of test chemical at 20°C and 40°C was determined to be 35.938 mm²/sec and 21.983mm²/s, respectively and the dynamic viscosity (calculated) of test chemical at 20°C and 40°C was determined to be 38.703 mPa.S and 23.680 mPa.S, respectively.

Key value for chemical safety assessment

Viscosity:

35.938 mm²/s (static)

at the temperature of:

20 °C

Additional information

The viscosity determination of test chemical was done as per the test guideline OECD 114 using Redwood Viscometer No. Under the test condition, the kinematic viscosity (experimental) of test chemical at 20°C and 40°C was determined to be 35.938 mm²/sec and 21.983mm²/s, respectively and the dynamic viscosity (calculated) of test chemical at 20°C and 40°C was determined to be 38.703 mPa.S and 23.680 mPa.S, respectively.