Pyridinium, 1-(phenylmethyl)-, ethyl methyl derivs., chlorides

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

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

Qualifier:

according to guideline

Guideline:

OECD Test Guideline 114 (Viscosity of Liquids)

Principles of method if other than guideline:

A tube was placed in a water bath set at a temperature of 38°C and allowed to stabilise for 10 minutes.
After temperature stabilisation is complete, the rubber bung on the tube was removed to allow the liquid sample to
flow. A stop watch was used to time the flow between the graduation marks below and above the
bulbous section of the tube.

GLP compliance:

no

Type of method:

flow cup (static)

Specific details on test material used for the study:

Batch Number KB17030481

Key result

Temp.:

other: 38 C

Parameter:

kinematic viscosity (in mm²/s)

Value:

ca. 48

Conclusions:

A quality control sample of MK92K was required to undergo a Viscosity
of Liquids assessment using a U-tube method to aid REACH registration of the substance.

Description of key information

 A viscosity assessment  has shown repeatable results (Table 1). The average viscosity of MK92K was 47.9 cSt at 38°C.

Key value for chemical safety assessment

Viscosity:

47.9 mm²/s (static)

at the temperature of:

38 °C

Additional information

MK92K does not contain hydrocarbons at a concentration considered to lead to toxicity by aspiration