Registration Dossier
Registration Dossier
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EC number: 918-594-3 | CAS number: 7723-14-0
Endpoint summary
Administrative data
Description of key information
Additional information
An adsorption / desorption study is technically not feasible because there is no method available to determine the water solubilty and no method to determine RP in the solid phase.
HPLC (high performance liquid chromatography) is an analytical technique, that can
separate a mixture of compounds, and is used to identify and/or quantify the individual
compounds using reference items. In contrast to gas chromatography, that is a very
effective separation technique for volatile compounds, HPLC is also applicable for
non-volatile substances if these are soluble. With HPLC, the test item is dissolved in
the eluent (what is also referred to as mobile phase), and pumped through the densely
packed column (stationary phase).
To set the stage for analysing or purifying a test item by HPLC technique the analyte
must be soluble in an appropriate polar or non-polar solvent so that it can be introduced
to the stream of mobile phase and be eluted from the column (sine qua non).
Due to its three-dimensional, cross-linked polymeric structure amorphous red phosphorus
is virtually insoluble in every established solvent so that the aforesaid
precondition is not fulfilled. For this account red phosphorus cannot be analysed by
HPLC techniques.
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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