2,3,3,4,4-pentafluoro-5-methoxy-2,5-bis[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl]tetrahydrofuran

Viscosity

Administrative data

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2011

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2011

Report date:

2011

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Test Guideline 114 (Viscosity of Liquids)

Principles of method if other than guideline:

Kinematic Viscosity was measured using a Schott Viscosity Timer.

GLP compliance:

no

Type of method:

capillary viscometer (static)

Test material

Test material information

Constituent 1

Reference substance name:

2,3,3,4,4-pentafluoro-2,5-bis(1,1,1,2,3,3,3-heptafluoropropan-2-yl)-5-methoxyoxolane

EC Number:

812-244-2

Cas Number:

957209-18-6

Molecular formula:

C11H3F19O2

IUPAC Name:

2,3,3,4,4-pentafluoro-2,5-bis(1,1,1,2,3,3,3-heptafluoropropan-2-yl)-5-methoxyoxolane

Specific details on test material used for the study:

L-21343 cyclic HFE
NB# 159329-30

Results and discussion

Viscosity

Key result

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

1.73

Any other information on results incl. tables

Kinematic Viscosity (centistokes) = EXP (680.420078*1/ (T+136) - 3.299591)

Temp (°C)	Kinematic Viscosity (cS)
-50.0	102.94
-40.0	43.45
-30.0	22.08
-20.0	12.92
-10.0	8.20
0.0	5.62
30.0	2.33
40.0	1.73
50.0	1.35
60.0	1.22

ln(kinvisc) vs 1/(T°C + 136):

y = 680.420078x - 3.299591

R² = 0.999614

Applicant's summary and conclusion

Conclusions:

The kinematic viscosity of Novec 7700 is 1.73 mm2/s at 40.0 °C.

Executive summary:

The kinematic viscosity of Novec 7700 is 1.73 mm2/s at 40.0 °C. The study was well-documented and a method equivalent to OECD 114 was used but the study was not conducted in accord with GLP guidelines; therefore the result is considered reliable with restrictions.