Registration Dossier
Registration Dossier
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EC number: 237-066-7 | CAS number: 13598-36-2
Endpoint summary
Administrative data
Description of key information
Additional information
Based on the physical chemical properties described in this chapter, phosphonic acid (phosphorous acid flake) does not need to be classified as dangerous for physical-chemical hazards according to the criteria of Directive 67/548/EEC.
Based on the physical chemical properties described in this chapter, phosphonic acid (phosphorous acid flake) does not need to be classified as hazardous for physical-chemical hazards according to the criteria of GHS/CLP regulation 1272/2008/EC. Based on its corrosive properties, the substance is classified as Corrosive to metals, Category 1.
The substance is a white and odourless solid at room temperature.
The substance has a melting point of 62.5ºC.
The substance starts to boil at 258ºC.
The substance has a relative density of 1.837 g/ml at 20ºC.
The substance has a Mass Median Diameter of >500 um.
The substance has a vapour pressure of 0.000011 mm Hg (0.00147 Pa) at 20ºC.
The substance has a water solubility of > 1067 g/l at 20ºC.
The dissociation constants are 1.8 and 6.2 at 25ºC.
The substance is not auto-flammable.
The substance is not highly flammable.
The substance is not explosive.
The substance is not an oxidising substance.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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