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Physical & Chemical properties

Melting point / freezing point

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Description of key information

-85.89 °C (Dreisbach)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
187.26 K

Additional information

Information concerning melting/freezing point of di-isopropyl ether was sourced from two separate handbooks. Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals (14th Edition) and CRC Handbook of Chemistry and Physics (81st Ed), which are known to contain peer-reviewed data of Klimisch-2 reliability state that the substance has a melting point of -85.89 to -86.8 °C (corresponding to 186.35 to 187.26 K). The survey of published literature data carried out by NIST identified only two values for the melting point, agreeing with Dreisbach (1949).

The value determined by Dreisbach (1949) is likely the primary source for the value reported in the CRC Handbook of Chemistry and Physics. No information on the atmospheric pressure was reported. The available data is considered to be adequate and complete for use in classification and labelling as well as risk assessment purposes.