α-trimethylsilanyl-ω-trimethylsiloxypoly[oxy(methyl-3-(2-(2-methoxypropoxy)propoxy)propylsilanediyl]-co-oxy(dimethylsilane))

Viscosity

Administrative data

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

August 2008

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP study

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2008

Report date:

2008

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Test Guideline 114 (Viscosity of Liquids)

GLP compliance:

yes

Type of method:

rotational viscometer (dynamic)

Test material

Test material information

Constituent 1

Reference substance name:

α-trimethylsilanyl-ω-trimethylsiloxypoly[oxy(methyl-3-(2-(2-methoxypropoxy)propoxy)propylsilanediyl]-co-oxy(dimethylsilane))

EC Number:

406-420-4

EC Name:

α-trimethylsilanyl-ω-trimethylsiloxypoly[oxy(methyl-3-(2-(2-methoxypropoxy)propoxy)propylsilanediyl]-co-oxy(dimethylsilane))

Cas Number:

69430-40-6

Molecular formula:

Unspecified example: C18.3H46.8O5.8Si4.1

IUPAC Name:

2,2,4,4,6,12,15-heptamethyl-6-[(trimethylsilyl)oxy]-3,5,10,13,16-pentaoxa-2,4,6-trisilaheptadecane

Details on test material:

- Name of test material (as cited in study report): DC 5067
- Substance type: Reaction mass (mixture)
- Physical state: Liquid
- Analytical purity: > 99%
- Lot/batch No.: 0005222669
- Expiration date of the lot/batch: September 15,2010
- Stability under test conditions: Stable
- Storage condition of test material: In the original container at room temperature in the dark
- Other:

Results and discussion

Viscosity

Temp.:

other: 25.0°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

ca. 21.7

Applicant's summary and conclusion

Conclusions:

The kinematic viscosity was determined to be 21.70 cSt at 25.0 °C.

Executive summary:

The viscosity of the test article was determined using a Cannon-Fenske viscometer (type routine, size 200, I.D. ^# P251), which was calibrated with a Cannon(R) certified viscosity standard (I.D. ^# N10 with kinematic viscosity of 17.72 cSt at 25.00 °C) in a constant temperature water bath maintained at 25.0 +- 0.1 °C. The calibration constant of the viscometer was calculated for use in determining the test article viscosity. The procedure was considered acceptable and the calculated average efflux time was used to determine the calibration constant of the viscometer.

The viscosity measurement was conducted in triplicate on one sampling of test article as supplied in a constant temperature water bath maintained at 25.0 +- 0.1 °C. The three efflux time measurements for the test article were within 0.5% of their average value, the procedure was considered acceptable and the calculated average efflux time was used to calculate the kinematic viscosity of the test article. The kinematic viscosity of the test article was determined to be 21.70 cSt at 25.0 °C.