Reaction Products of Dimethyl hydrogen phosphite and Alcohols C14-18, Even, Linear

Endpoint summary

Description of key information

Appearance   The test item was observed to be a white solid block.   Melting/freezing point   The melting temperature of the test item has been determined to be over the range 26 to 42 °C (299 to 315 K) (OECD 102 and EU Method A.1)   Boiling point   The test item has been determined to volatilize on decomposition from approximately 300 °C (573 K) at 101 to 103 kPa. As the test item decomposed, no value for boiling temperature could be determined (OECD 103 and EU Method A.2).   Relative density   The density of the test item has been determined to be 977 kg/m3 at 20.0 +/- 0.5 °C and a relative density of 0.977 (OECD 109 and EU Method A.3).   Granulometry   Granulometry has not been investigated because the test item has been demonstrated to have a melting point in the range 26 °C to 42 °C. This means that particle size influencing toxicological profile is irrelevant because the substance is on the border between the solid and liquid state at ambient temperature. Furthermore, the determined vapour pressure of 0.323 Pa at 25 °C indicates that exposure of humans to the test item via the inhalation route is of negligible concern   Vapour pressure   The vapour pressure of the test item has been determined to be 0.323 Pa at 25 °C (298 K) and 1.14 Pa at 80 °C (353 K) (OECD 104 and EU Method A.4).   Partition coefficient   The partition coefficient of the test item was determined to be 1.00 x 10E10 with a Log10 Pow value > 10.0 (OECD 117 and EU Method A.8).   Water solubility   in the study Fox J M 2016 The water solubility of the test item has been determined to be less than 2.53 x 10-5 g/L of solution at 20.0 ± 0.5 °C, using the flask method, designed to be compatible with Method A.6 Water Solubility of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 105 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. Surface tension   Water solubility of the test item was determined to be 0.025 mg/L at 30°Cand, in accordance with REACH Annex VII, Column 2, surface tension does not need to be investigated because solubility in water is below 1 mg/L at 20 °C.   Flash point   The test item was determined to have a flash point of 181 ± 2 °C using the closed cup equilibrium method (EU Method A.9).   Autoflammability / self-ignition temperature   The test item was determined to have an auto-ignition temperature of 248 ± 5°C (EU Method A.15).   Flammability   The test item was determined to be not highly flammable as it failed to ignite in the preliminary screening test (EU Method A.10).   Explosive properties   Based on the chemical structure of the test item the result for explosive properties has been predicted negative (EU Method A.14).   Oxidising properties   Based on the chemical structure of the test item the result for oxidising properties has been predicted negative (EU Method A.17).