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Key value for chemical safety assessment

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There are no available data on the density of hydroxylammonium nitrate. However, read across data for hydroxylammonium, hydroxylammonium sulphate (solid and in solution) and hydroxylammonium chloride (solid and in solution) were available. The relative density of hydroxylammonium was quoted as 1.204 at 20°C. Density data for crystalline hydroxylammonium sulphate and hydroxylammonium chloride ranged from 1676 kg/m³ to 1883 kg/m³. Density data for saturated solutions of hydroxylammonium sulphate and hydroxylammonium chloride varied between 1200 kg/m³ and 1400 kg/m³ and were very dependent on the temperature of the solutions.