Registration Dossier
Registration Dossier
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EC number: 500-110-3 | CAS number: 50586-59-9 1 - 6.5 moles ethoxylated
Endpoint summary
Administrative data
Description of key information
Additional information
Appearance / physical state / colour
Propylidynetrimethanol, ethoxylated is a colourless and organic liquid (Currenta, 2009).
Melting point / freezing point
Melting ranges: >= -39.2 -
Boiling point
The substance decomposes before reaching the boiling point.
Density
The substanc's relative density is 1.12 Currenta (2007).
Particle size distribution (Granulometry)
Data waiving: In accordance with column 2 of REACH Annex VII, the study does not need to be conducted as the substance is marketed or used in a non solid or granular form.
Vapour pressure
The vapour pressures of Lupranol VP 9236 were calculated to be 0.000264 Pa at 20°C and 0.000423 Pa at 25°C, according to OECD guideline 104 and EU method A.4 (LAUS GmbH, 2008).
Partition coefficient
The structure-fragment calculation method indicates a log Pow range of -1.56 to 1.82 for components of this UVCB mixture. The upper limit value of log Pow = 1.82 is used to conservatively represent partitioning of the components of this UVCB substance in the chemical safety assessment (West, 2010).
Water solubility
The water solubility of the test item Polyether V 531 is estimated as approx. 28 g/L (Currenta, 2009).
Surface tension
The surface tension of Propyliyntrimethanol, ethoxylated is 62.6 mN/m at 20°C of 1 g/L test item diluted in water (Currenta, 2009).
Flash point
Flashpoint: 213.5 °C.
Auto flammability
Autoflammability / self ignition temperature of Propylidynetrimethanol, ethoxylated is 370 °C at 1000 hPa.
Flammability
The substance is not flammable (no solid).
Explosiveness
Non explosive (expert statement).
Oxidising properties
Propylidynetrimethanol, ethoxylated has no oxidizing properties when tested according to EC Test Procedure A 21 (Currenta, 2009).
Stability in organic solvents and identity of relevant degradation products,
Data waiving: According to Column 1 of Annex IX (EU REACH), testing is only required if the stability of the substance is considered to be critical. The guidance defines potentially critical as: (i) for solubility measurement (e.g. for octanol water distribution), (ii) for fortification or calibration standards, (iii) for dosing using a solvent in ecotoxicity studies, and (iv) for sample preparation in for analytical verification or monitoring programs. None of the above applies to the substance. Therefore testing of stability in organic solvents is deemed scientifically unjustified.
Dissociation constant
Viscosity
The (dynamic) viscosity of Propylidynetrimethanol, ethoxylated is specified asη20 °C = 0.7425 Pa*s andη40 °C= 0.1676 Pa*s (Currenta, 2009). These results are supported by Perstorp (2010) that give the (dynamic) viscosity of Propylidynetrimethanol, ethoxylated asη20 °C = 0.83 Pa*s andη40 °C= 0.2 Pa*s. The values given by Currenta (2009) are taken to describe the key parameter "viscosity" of Propylidynetrimethanol, ethoxylated.
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