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Physical & Chemical properties

Viscosity

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Description of key information

The viscosity of DIDS was determined to be 41.77 mm2/s at 20 °C, 19.45 mm2/s at 40 °C and 4.72 mm2/s at 100 °C in a reliable study using standard method ASTM D-445 (INEOS Enterprises, 2013b, c).

Key value for chemical safety assessment

Viscosity:
41.77 mm²/s (static)
at the temperature of:
20 °C

Additional information

The viscosity of DIDS was determined to be 41.77 mm2/s at 20 °C, 19.45 mm2/s at 40 °C and 4.72 mm2/s at 100°C in a reliable study using standard method ASTM D-445 (INEOS Enterprises, 2013b,c).

 

Relevant read-across data:

Two studies using the same standard method (ASTM D-445) on DIDA found viscosities of 27 mm2/s at 20 °C, 14.1 mm2/s at 40 °C, and 3.6 mm2/s at 100 °C (INEOS Enterprises, 2009b), and 13.8 mm2/s at 40 °C and 3.5 mm2/s at 100 °C (Brassington, 2010c).

Similarly, when using the same method (ASTM D-445), viscosities of 23 mm2/s at 20 °C, 12 mm2/s at 40 °C, and 3.2 mm2/s at 100 °C were observed for DEHS (INEOS Enterprises, 2009b).

 

The similarity between viscosity values for DIDA and DEHS, and that seen for DIDS, supports the use of these compounds for read-across purposes.

 

References

Brassington DS (2010c). CAS No 27178-16-1: Hatcol 2910. Determination of viscosity.

INEOS Enterprises (2009b). CEREPLAS™ plasticizers range – typical physical properties. 9 June 2009.