4-(5,5,6-trimethylbicyclo[2.2.1]hept-2-yl)cyclohexan-1-ol

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

11/02/2015

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 substance 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 (IUPAC name): 4-(5,5,6-trimethylbicyclo[2.2.1]hept-2-yl)cyclohexan-1-ol
- Molecular formula: C16H28O
- Molecular weight: 236.396 g/mol
- Smiles notation: OC1CCC([C@@H]2[C@@H]3C[C@@H](C(C)(C)[C@@H]3C)C2)CC1
- InChl: 1S/C16H28O/c1-10-14-8-12(16(10,2)3)9-15(14)11-4-6-13(17)7-5-11/h10-15,17H,4-9H2,1-3H3
- Substance type: Organic
- Physical state: liquid

Key result

Temp.:

other: 80°C

Parameter:

dynamic viscosity (in mPa s)

Value:

72.803

Remarks on result:

other: Highly viscous liquid hence required heating

Key result

Temp.:

other: 100°C

Parameter:

dynamic viscosity (in mPa s)

Value:

29.48

Remarks on result:

other: Highly viscous liquid hence required heating

Key result

Temp.:

other: 80°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

74.1

Remarks on result:

other: Highly viscous liquid hence required heating

Key result

Temp.:

other: 100°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

30.01

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)		300sec
	Time taken to fill 50ml at 40°C flask in ‘Sec’ (Mean Value)		121.5sec
	Density of fluid in gm/cc		0.9825 gm/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 80⁰C

               ν=ct

                = 0.247 x 300 sec

                = 74.1mm²/sec

 

For Test Temperature at 100⁰C

ν=ct

               = 0.247 x 121.5sec

               = 30.01mm²/s

 

2.      Calculation of Dynamic Viscosities:

 

For Test Temperature at 80⁰C

               ν= η/ρ

               74.1 = η/ 0.9825

η = 74.1 x 0.9825 

                 = 72.803mPa.S

 

For Test Temperature at 100⁰C

               ν= η/ρ

              30.01 = η/0.9825

               η = 30.01 x 0.9825

                 = 29.48mPa.S

 

Conclusions:

Kinematic viscosity (experimental) of test chemical at 80 0C and 100 0C is 74.1 mm2/sec and 30.01 mm2/s, respectively.
Dynamic viscosity (calculated) of test chemical at 80 0C and 100 0C is 72.803 mPa.S and 29.48 mPa.S, respectively.

Executive summary:

The viscosity determination of test substance was done as per the test guideline OECD 114 using Redwood Viscometer No. 1.Kinematic viscosity (experimental) of test substance at 80⁰C and 100⁰C is 74.1 mm²/sec and 30.01 mm²/s, respectively. Dynamic viscosity (calculated) of test substance at 72.803 mPa.S and 29.48 mPa, respectively.

Description of key information

Kinematic viscosity (experimental) of test chemical at 80 0C and 100 0C is 74.1 mm2/sec and 30.01 mm2/s, respectively.

Dynamic viscosity (calculated) of test chemical at 80 0C and 100 0C is 72.803 mPa.S and 29.48 mPa.S, respectively.  

Key value for chemical safety assessment

Viscosity:

72.803 mPa · s (dynamic)

at the temperature of:

80 °C

Additional information

The viscosity determination of test substance was done as per the test guideline OECD 114 using Redwood Viscometer No. 1.Kinematic viscosity (experimental) of test substance at 80⁰C and 100⁰C is 74.1 mm²/sec and 30.01 mm²/s,respectively. Dynamic viscosity (calculated) of test substance at 72.803 mPa.S and 29.48 mPa.s, respectively.

From authoritative databases Viscosity of test chemical is determine to be 109.224 mPa*s at temperature 35 °C.