Registration Dossier
Registration Dossier
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EC number: 231-669-9 | CAS number: 7681-53-0
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
No true melting point is observed for sodium hypophosphite. The substance decomposes at temperatures above 238°C and an apparent melting point due to water evaporation, is observed at 90°C. (OECD guideline 102)
Key value for chemical safety assessment
Additional information
An experimental study, which was performed according to OECD guideline 102 under ISO 17025, was selected as the key study (Reuse, 2009). Furthermore a complementary study was performed with TG-MS to identify the loss of elements during the heating. The thermograms thus obtained showed that in the test conditions, no true melting point was observed for this substance. Moreover the substance decomposed at temperatures above 238°C and an apparent melting point due to water evaporation was observed at 90°C.
This study is reliable without restrictions since it is a guideline study performed by an ISO 17025 certified laboratory.
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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