Reaction mass of 4-(2,6,6-trimethylcyclohex-2-ene-1-yl)-but-3-ene-2-one and 4-(2,6,6-trimethylcyclohex-1-ene-1-yl)-but-3-ene-2-one

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 OECD test guidelines.

Qualifier:

according to guideline

Guideline:

OECD Test Guideline 114 (Viscosity of Liquids)

Principles of method if other than guideline:

The viscosity of test substance was determined as per the test guideline OECD 114, using method Redwood Viscometer No. 1.

GLP compliance:

not specified

Type of method:

other: Redwood Viscometer No. 1

Key result

Temp.:

20°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

30.381

Remarks on result:

other: no other details mentioned

Key result

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

19.14

Remarks on result:

other: no other details mentioned

Key result

Temp.:

20°C

Parameter:

dynamic viscosity (in mPa s)

Value:

31.9

Remarks on result:

other: no other details mentioned

Key result

Temp.:

40°C

Parameter:

dynamic viscosity (in mPa s)

Value:

20.097

Remarks on result:

other: no other details mentioned

TEST DESCRIPTION AND RESULT

Details		Readings	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)	123 sec
	Time taken to fill 50ml at 40 °C flask in ‘Sec’ (Mean Value)	72.5 sec
	Density of fluid in gm/cc	1.05gm/cc

 

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

 = 0.247x123

 = 30.381mm2/s

 

For Test Temperature at 40⁰C

ν=ct

 = 0.264x72.5

 = 19.14mm2/s

 

2.      Calculation of Dynamic Viscosities:

 

For Test Temperature at 20⁰C

               ν= η/ρ

               30.381= η/1.05

               η = 30.381x1.05

                 = 31.90mPa.S

 

For Test Temperature at 40⁰C

               ν= η/ρ

               19.14= η/1.05

               η = 19.14x1.05

                 = 20.097mPa.S

 

Result:

 

Sr. No.	Temperature of Sample	Time taken to fill the 50 ml of flask in ‘seconds’ (Mean value)	Kinematic Viscosity in mm2/s	Density in gm/cc	Dynamic (or) Absolute Viscosity mPa.S
1.	20^0C	123 sec	30.381mm2/s	1.05	31.90mPa.S
2.	40^0C	72.5 sec	19.14mm2/s	1.05	20.097mPa.S

 

Conclusions:

Kinematic viscosity (experimental) of test chemical at 20°C and 40°C is 30.381mm2/s and 19.14mm2/s, respectively. Dynamic viscosity (calculated) of mixture of ionone at 20°C and 40°C is 31.90mPa.S and 20.097mPa.S, respectively.

Executive summary:

The viscosity determination of test substance was done as per the test guideline OECD 114. The method followed was according to Redwood Viscometer No. 1. Kinematic viscosity (experimental) of test substance at 20 °C and 40 °C is 30.381 mm²/sec and 19.14 mm²/s, respectively. Dynamic viscosity (calculated) of test substance at 20 °C and 40 °C is 31.90 mPa.S and 20.097mPa.S, respectively.

Description of key information

The viscosity determination of test substance was done as per the test guideline OECD 114. The method followed was according to Redwood Viscometer No. 1. Kinematic viscosity (experimental) of test substance at 20 °C and 40 °C is 30.381 mm²/sec and 19.14 mm²/s, respectively. Dynamic viscosity (calculated) of test substance at 20 °C and 40 °C is 31.90 mPa.S and 20.097mPa.S, respectively.

Key value for chemical safety assessment

Viscosity:

30.381 mm²/s (static)

at the temperature of:

20 °C

Additional information

The viscosity determination of test substance was done as per the test guideline OECD 114. The method followed was according to Redwood Viscometer No. 1. Kinematic viscosity (experimental) of test substance at 20 °C and 40 °C is 30.381 mm²/sec and 19.14 mm²/s, respectively. Dynamic viscosity (calculated) of test substance at 20 °C and 40 °C is 31.90 mPa.S and 20.097mPa.S, respectively.