2-ethoxybenzoic acid

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-01-13 – 2017-01-13

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 2-ethoxy benzoic acid (pure) (CAS No. 134-11-2 )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

Standard covering the apparatus used:

Redwood Viscometer No. -1

Specific details on test material used for the study:

Name of test material (as cited in study report): 2-ethoxy benzoic acid
Molecular formula:C9H10O3
Molecular weight:166.175 g/mol
Substance Type: Organic
Physical State: Liquid

Key result

Temp.:

other: 30°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

68.32

Remarks on result:

other: No other detail available

Key result

Temp.:

other: 50°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

25.67

Remarks on result:

other: No other detail available

Key result

Temp.:

other: 30°C

Parameter:

dynamic viscosity (in mPa s)

Value:

66.63

Remarks on result:

other: No other detail available

Key result

Temp.:

other: 50°C

Parameter:

dynamic viscosity (in mPa s)

Value:

25.12

Remarks on result:

other: No other detail available

Method Details	Observations	Remarks if, any
Guideline	OECD 114
Method of measurement	Redwood Viscometer No. -1
Principle of method	The flow of chemical under gravity through a capillary using Redwood Viscometer 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)	at 30℃=276.6 sec
	Time taken to fill 50ml at 40°C flask in ‘Sec’ (Mean Value)	at 50℃= 104.3 sec
	Density of fluid in gm/cc	0.9754 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 30°C

ν=ct

= at 30℃=276.6 × 0.247sec

= 68.32mm²/sec

For Test Temperature at 50°C

ν=ct

= at 50℃= 104.3 × 0.247sec

= 25.67 mm²/sec

2. Calculation of Dynamic Viscosities:

For Test Temperature at 30°C

ν= η/ρ

68.32 =η 0.9754

η = 68.32 x 0.9754

= 66.63 mPa.S

For Test Temperature at 50°C

ν= η/ρ

25.67 =η/ 0.9754

η = 25.67 x 0.9754

= 25.12 mPa.S

As the test iem starts crystals at formation at 20 ℃. Thus, the viscocity for test item was determined at 30 ℃ and 50 ℃.

Conclusions:

The viscosity determination of substance 2-ethoxy benzoic acid (pure) (CAS No. 134-11-2 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of substance at 30°C and 50°C is 68.32 mm²/sec and 25.67 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 30°C and 50°C is 66.63 mPa.S and 25.12 mPa.S, respectively.

Executive summary:

The viscosity determination of substance 2-ethoxy benzoic acid (pure) (CAS No. 134-11-2 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of substance at 30°C and 50°C is 68.32 mm²/sec and 25.67 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 30°C and 50°C is 66.63 mPa.S and 25.12 mPa.S, respectively.

Description of key information

The viscosity determination of substance 2-ethoxy benzoic acid (pure) (CAS No. 134-11-2 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of substance at 30°C and 50°C is 68.32 mm²/sec and 25.67 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 30°C and 50°C is 66.63 mPa.S and 25.12 mPa.S, respectively.

Key value for chemical safety assessment

Viscosity:

68.32 mm²/s (static)

at the temperature of:

30 °C

Additional information

The viscosity determination of substance 2-ethoxy benzoic acid (pure) (CAS No. 134-11-2 )was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of substance at 30°C and 50°C is 68.32 mm²/sec and 25.67 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 30°C and 50°C is 66.63 mPa.S and 25.12 mPa.S, respectively.