1'-acetonaphthone

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-02-16 – 2017-02-16

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental result performed using standard methods of analysis

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 1'-acetonaphthone (CAS No. 941-98-0 )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:1-(1-naphthyl)ethanone
- Molecular formula: C12 H10 O
- Molecular weight: 170.21 g/mol
- Smiles notation: c12c(cccc1C(C)=O)cccc2
- InChl: 1S/C12H10O/c1-9(13)11-8-4-6-10-5-2-3-7-12(10)11/h2-8H,1H3
- Substance type: Organic
- Physical state: Liquid

Key result

Temp.:

20°C

Parameter:

dynamic viscosity (in mPa s)

Value:

36.586

Remarks on result:

other: No other detail available

Key result

Temp.:

40°C

Parameter:

dynamic viscosity (in mPa s)

Value:

76.329

Remarks on result:

other: No other detail available

Key result

Temp.:

20°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

32.357

Remarks on result:

other: No other detail available

Key result

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

68.493

Remarks on result:

other: No other detail available

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)		131sec
	Time taken to fill 50ml at 40°C flask in ‘Sec’ (Mean Value)		277.3sec
	Density of fluid in gm/cc		1.1144 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 20°C

ν=ct

= 131 × 0.247sec

= 32.357mm²/sec

 

For Test Temperature at 40°C

ν=ct

= 277.3 × 0.247sec

= 68.4931 mm²/sec

 

2. Calculation of Dynamic Viscosities:

For Test Temperature at 20°C

ν= η/ρ

32.357 =η 1.1144

η = 32.357 x 1.1144

= 36.0586 mPa.S

 

For Test Temperature at 40°C

ν= η/ρ

68.4931 =η/ 1.1144

η = 68.4931 x 1.1144

= 76.3287 mPa.S

Conclusions:

The viscosity determination of Test item 1'-acetonaphthone (CAS No. 941-98-0 )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 32.357 mm²/sec and 68.4931 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C is 36.0586 mPa.S and 76.3287 mPa.S, respectively

Executive summary:

The viscosity determination of Test item 1'-acetonaphthone (CAS No. 941-98-0 )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 32.357 mm²/sec and 68.4931 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C is 36.0586 mPa.S and 76.3287 mPa.S, respectively

Description of key information

The viscosity determination of Test item 1'-acetonaphthone (CAS No. 941-98-0 )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 32.357 mm²/sec and 68.4931 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C is 36.0586 mPa.S and 76.3287 mPa.S, respectively

Key value for chemical safety assessment

Viscosity:

32.357 mm²/s (static)

at the temperature of:

20 °C

Additional information

The viscosity determination of Test item 1'-acetonaphthone (CAS No. 941-98-0 )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 32.357 mm²/sec and 68.4931 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C is 36.0586 mPa.S and 76.3287 mPa.S, respectively