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Physical & Chemical properties

Melting point / freezing point

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Description of key information

The melting point of hex-3-yne-2,5-diol is 42 °C. 

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
42 °C

Additional information

Several reliable literature sources report the melting point of Hex-3-yne-2,5-diol as result from experimental studies to be between 40°C and 70°C. The value which originates from REAXYS which is a peer reviewed data base is 42°C. Thus the melting point of 42°C at atmosphere pressure is regarded to be reliable for Hex-3-yne-2,5-diol.