Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

EP-1 (O,O-diethyl hydrogen phosphorodithioate) is a colourless to light grey liquid with a pungent odour.

The melting point of EP-1 is below 0°C.

The boiling point of EP-1 is 65°C at about 1 mm Hg.

The vapour pressure of EP-1 is 0.5 mmHg at 57°.

The water solubility of EP-1 is stated at 330 g/L at 25°C.

The surface tension of EP-1 is 31.7 g/s at 20°C.

The flashpoint of EP-1 is 86.5°C at 769 mmHg.