Registration Dossier
Registration Dossier
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EC number: 253-733-5 | CAS number: 37971-36-1
Viscosity
Administrative data
Link to relevant study record(s)
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2008-11-10 to 2008-12-19
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Qualifier:
- according to guideline
- Guideline:
- OECD Test Guideline 114 (Viscosity of Liquids)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 53019
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- rotational viscometer (dynamic)
- Key result
- Temp.:
- 20°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 0.016
- Temp.:
- 40°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 0.009
- Temp.:
- 20°C
- Parameter:
- other: m2/s
- Value:
- 0
- Remarks on result:
- other: The correct value of the kinematic viscosity at 20°C is 1.28 exp.-05 m2/s.
- Conclusions:
- The determination of the dynamic viscosity was performed according to DIN 53019 (German industry norm) and OECD 114 using a rotary viscosimeter at 20°C and 40°C. The kinematic viscosity was calculated with the dynamic viscosity and the density at test temperature. The following results were obtained:
Dynamic viscosity at 20 °C: 1.63 E-02 Pa · s
Dynamic viscosity at 40 °C: 8.6 E-03 Pa · s
Kinematic viscosity at 20 °C: 1.28 E-05 m2/s
Kinematic viscosity at 40 °C: 6.8 E-06 m2/s - Executive summary:
The determination of the dynamic viscosity was performed according to DIN 53019 (German industry norm) and OECD 114 using a rotary viscosimeter at 20°C and 40°C. The kinematic viscosity was calculated with the dynamic viscosity and the density at test temperature. The following results were obtained for the 50.4% aqueous solution of2-phosphonobutane-1,2,4-tricarboxylic acid:
Dynamic viscosity at 20 °C: 1.63 E-02 Pa · s
Dynamic viscosity at 40 °C: 8.6 E-03 Pa · s
Kinematic viscosity at 20 °C: 1.28 E-05 m2/s
Kinematic viscosity at 40 °C: 6.8 E-06 m2/s
- Endpoint:
- viscosity
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is a solid
- Justification for type of information:
- Since the registered substance is solid, viscosity is not relevant. The actually manufactured substance is a 50% aqueous solution. The viscosity of the aqueous solution is reported in the key study.
Referenceopen allclose all
The kinematic viscosity at 40°C is 6.8 exp.-06 m2/s. An entry of this value was not possible (max. 5 decimal places are allowed and "exp. writing" is not possible.
Description of key information
For the solid material no viscosity was determined. As the substance is available only as ca 50% aqueous solution, the dynamic viscosity for the solution is given.
Key value for chemical safety assessment
- Viscosity:
- 0.016 mPa · s (dynamic)
- at the temperature of:
- 20 °C
Additional information
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