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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Viscosity

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Administrative data

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Description of key information

The viscosity of "24.3 active chlorine" sodium hypochlorite was determined to be:
6.2 – 6.6 mPa.s (at 20°C ± 0.2°C)
4.0 mPa.s for a rotation of 200 rpm (at 40°C ± 0.2°C)
For lower purities of sodium hypochlorite (5 % and 14 %) also lower viscosity values were measured.

Key value for chemical safety assessment

Viscosity:
6.4 mPa · s (dynamic)
at the temperature of:
20 °C

Additional information

Guideline and GLP studies are available for various concentration of sodium hypochlorite. At 20°C, the viscosity of "24.3% active chlorine" sodium hyppchlorite was found to be