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Physical & Chemical properties

Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The kinematic viscosity of the substance was determined according to USP 38/NF 33 <911> Method I, and conducted under good manufacturing practices (GMP)
Qualifier:
according to
Guideline:
other: USP 38/NF 33 <911> Method I
GLP compliance:
no
Remarks:
conducted under good manufacturing practices GMP
Type of method:
capillary viscometer (static)
Key result
Temp.:
other: 25°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
ca. 1 643
Remarks on result:
other: Determined with Cannon-Fenske Routine tube #500
Remarks:
20% solution
Conclusions:
The kinematic viscosity of a 20% solution of the Reaction Mass of 4-sulphophthalic acid and 3-sulphophthalic acid is 1643.0 mm2/s (cST) at 25C.

Description of key information

The kinematic viscosity of a 20% of the Reaction Mass of 4-sulphophthalic acid and 3-sulphophthalic acid determined according to USP 38/NF 33 911 Method I, and conducted under good manufacturing practices (GMP) is 1643.0 mm2/s (cST) at at 25˚C.

Key value for chemical safety assessment

Viscosity:
1 643 mm²/s (static)
at the temperature of:
25 °C

Additional information