Decane-1,2-diol

Endpoint summary

Additional information

Physico-chemical endpoints are completed for this substance based on test data following standard guidelines, or data waivers. All data are therefore considered to be reliable and relevant for the endpoint concerned.

Appearance / physical state / colour

Decan-1,2-diol is a pale white to white waxy mass at ambient temperature.The data are taken from substance identification information in an OECD102 (1995) guideline study available as an unpublished report (Smeykal 2014).

Melting point/freezing point

Decan-1,2-diol has a melting point of 48-52 °C at 1013 hPa.The melting point was determined in a thermal analysis test, using differential scanning calorimetry following OECD guideline 102 (Smeykal 2014).

Boiling point

Decan-1,2-diol has a boiling point of 279.3 °C at 1013 hPa.The boiling point was determined in a thermal analysis test, using differential scanning calorimetry following OECD guideline 103 (Smeykal 2014).

Density

The relative density of decan-1,2-diol at 20 ± 0.1 ºC (compared to water at 4 ºC) is 0.97.The relative density was determined with a calibrated air comparison pycnometer according to OECD guideline 109 (Smeykal 2014).

Granulometry

The particle size distribution test has been waived because the substance is not manufactured or used in a solid form.

 

Vapour pressure

The vapour pressure of decan-1,2-diol was determined to be 0.0045 Pa at 20°C, 0.0096 Pa at 25°C and 0.29 Pa at 50°C.The vapour pressure of the test item was determined in a vapour pressure balance test following OECD guideline 104 (Smeykal 2014).

 

Partition coefficient

 

The partition coefficient log Pow for decan-1,2-diol was determined to be 1.99 at 22.4 ºC using HPLC method.The partition coefficient of the test item was determined using the HPLC method following a GLP compliant OECD guideline 117 study (Lange 2015).

Water solubility

The solubility of decan-1,2-diol was determined to be 579 mg/L at 20°C and pH 6.5.The water solubility of the test item was measured following a GLP compliant OECD guideline 105 study (Lange 2015).

Surface tension

The surface tension of a 90 % saturated aqueous solution of decan-1,2-diol was determined to be 23.33 mN/m (standard deviation ± 0.01) at 20 ºC. As the surface tension is < 60 mN/m, the test item is classified as a surface-active substance.The surface tension was determined using the harmonised ring method according to OECD guideline 115 (Thieu-Simchen 2015).

Flash point

The flash point study has been waived as the substance is a solid at room temperature.

Auto-flammability

The self-ignition temperature study has been waived as the substance is a solid with a melting point less than 160°C.

Flammability

The test item could not be ignited when a flame was applied as an ignition source for at least 2 minutes. The test item melted. The substance is not classified as a highly flammable solid according to Directive 67/548/EEC, nor as a readily combustible solid in class 4.1 according to the UN Transport Regulation and nor as a flammable solid according to GHS / CLP Regulation EC 1272/2008 Annex 1: 2.7.

Explosiveness

Based on the structure of the substance, the explosiveness study has not been conducted asdecan-1,2-diolhas no structural alerts that would indicate explosive properties.

Oxidising Properties

Based on the structure of the substance, the oxidising properties have not been conducted asdecan-1,2-diolhas no structural alerts that would indicate oxidising properties.

Classification and labelling

The substance is not classified for physico-chemical hazards. Based on the structure of the substance, it does not meet the criteria for oxidising or explosive properties and based on experimental data, the substance does not meet the criteria for a flammable solid. Experience in manufacture and handling shows that the substance is not a self-heating solid.