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Physical & Chemical properties

Melting point / freezing point

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Description of key information

Disodium hexafluorosilicate melts at red decomposition.

Key value for chemical safety assessment

Additional information

According to the information obtained from peer reviewed handbooks/ publications, melting point cannot be determined since disodium hexafluorosilicate descomposes before melting.

TGA analysis shows that the substance decomposes at 620ºC approximately.