Registration Dossier
Registration Dossier
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EC number: 233-713-2 | CAS number: 10326-41-7
Viscosity
Administrative data
Link to relevant study record(s)
- Endpoint:
- viscosity
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Justification for type of information:
- For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
- Reason / purpose for cross-reference:
- read-across source
- Temp.:
- other: 25.0°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 36.9
- Conclusions:
- At 25 °C a lactic acid aqueous solution of 88.6 % w/w has a viscosity of 36.9 centipoise. Viscosity increases with increasing concentration and decreases with increasing temperature.
- Executive summary:
At 25 °C a lactic acid aqueous solution of 88.6 % w/w has a viscosity of 36.9 centipoise. Viscosity increases with increasing concentration and decreases with increasing temperature.
This information is used in a read-across approach in the assessment of the target substance. For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
- Endpoint:
- viscosity
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Justification for type of information:
- For details and justification of read-across please refer to the read-across report attached to IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Key result
- Temp.:
- other: 25.0°C
- Parameter:
- other: cP
- Value:
- 18.4
- Remarks on result:
- other: 80 % aqueous solution
- Temp.:
- other: 40.0
- Parameter:
- other: cP
- Value:
- 9.4
- Remarks on result:
- other: 80 % aqueous solution
- Temp.:
- other: 60.0
- Parameter:
- other: cP
- Value:
- 4.8
- Remarks on result:
- other: 80 % aqueous solution
- Temp.:
- other: 80.0
- Parameter:
- other: cP
- Value:
- 2.9
- Remarks on result:
- other: 80 % aqueous solution
- Conclusions:
- The viscosity of lactic acid 80 % solution is in line with expectations and literature data.
- Executive summary:
Viscosity was determined with Übbelohde viscosimeter. An 80 % aqueous solution of lactic acid has a viscosity of 18.4 cP (= 18.4 mPa × s) at 25 °C.
This information is used in a read-across approach in the assessment of the target substance. For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
- Endpoint:
- viscosity
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
- Reason / purpose for cross-reference:
- read-across source
- Key result
- Temp.:
- other: 25.0°C
- Parameter:
- other: cP
- Value:
- 18.4
- Remarks on result:
- other: 80 % w/w solution of lactic acid
- Conclusions:
- The value found by PURAC at 80 % and 25 °C matches with the values reported in Holten (75.33 % lactic acid at 25 °C, 13.03 cP and 85.32 % at 25 °C, 28.5 cP). The values of 18.4 cP at 80 % and 25 °C and 36.9 cP at 88.6 % and 25 °C are relevant.
- Executive summary:
In a PURAC internal report the viscosity of lactic acid at various concentrations and temperatures is given. Measurement is done by Übbelohde viscosimeter. Temperatures varied between 25 °C and 80 °C, concentrations between 20 and 80 %. An 80 % solution has a viscosity of 18.4 cP at 25 °C.
This information is used in a read-across approach in the assessment of the target substance. For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
Referenceopen allclose all
Result: Concentration: 88.6 %. Result: 36.9 mP s at 25 °C
Description of key information
An 80 % aqueous solution of lactic acid has a viscosity of 18.4 cP (= 18.4 mPa × s) at 25 °C.
Key value for chemical safety assessment
- Viscosity:
- 18.4 mPa · s (dynamic)
- at the temperature of:
- 25 °C
Additional information
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