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Physical & Chemical properties

Melting point / freezing point

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Description of key information

The freezing temperature of PBO (Purity: 98.2%) was determined to be less than -25°C. 

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-25 °C

Additional information

The freezing point was determined in a suitable apparatus in accordance with British Standard Method BS4633 - Method for the Determination of Crystallizing Point (1970).The freezing temperature of PBO (pure grade) was determined to be less than -25°C. Purity: 98.2%