Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Boiling point
Administrative data
Link to relevant study record(s)
Description of key information
According to Annex VII, section 7.3, column 2 of Regulation No. 1907/2006, a boiling point study is not required for solids that melt above 300 °C. Boric acid has a melting point greater than 1000 °C. Boric acid starts to give off water and decomposes at above 100°C first forming metaboric acid and is converted into boric oxide (B2O3). This has a boiling point of 2200°C. It is anticipated that if Orthoboric acid, potassium salt could be isolated from the chemical matrix in which it is made, it would behave similarly to afford potassium oxide and boric anhydride during decomposition and subsequent dehydration.
Key value for chemical safety assessment
Additional information
It is anticipated that if Orthoboric acid, potassium salt could be isolated from the chemical matrix in which it is formed, it would behave similarly to afford potassium oxide and boric anhydride during decomposition and subsequent dehydration.
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