Registration Dossier
Registration Dossier
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EC number: 234-217-9 | CAS number: 10599-90-3
Endpoint summary
Administrative data
Description of key information
Additional information
Monochloramine does not exist as a pure substance at room temperature. Pure monochloramine is gaseous and decomposes violently at low temperatures (-40°C). Therefore, the substance is produced and handled in form of aqueous solutions only. In general, low concentrations monochloramine solutions are producedin situin concentrations up to 10 g/L. Thus, physico-chemical properties were determined on concentrations up to 10 g/L.
The pH of the monochloramine solution was measured during routine analyses. At a concentration of 5.9 g/L the pH was measured at 12.5 and the monochloramine is considered as basic; while at a lower concentration (0.25 mg/L) the pH was neutral (pH of 8.3).
The free alkalinity was determined to be 0.0914 NaOH (%mass/mass) with a pH of 13.36 in a test performed in compliance with GLP and according to a standardized method.
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