This occurs at concentrations of about 2 mg Zn 2+ / L. Solubility of zinc and zinc compounds. The solubility of zinc depends on temperature and pH of the water in question. When the pH is fairly neutral, zinc in water insoluble.
What's the weather like in Rome in September The weather continues to cool down in Rome, Italy in September, although the city is still pleasantly warm. Temperature At the beginning of the month, the average temperature starts off at 23Â°C and slowly drops until it reaches 19Â°C in the final few days of the month.
Rome: Weather Forecast. The warmest day over the next 7 days in Rome is forecast to be 26th April at 21Â°C (70Â°F) and the warmest night on 25th April at 13Â°C (55Â°F). The average temperature over the next 7 days is forecast to be 19Â°C (66Â°F) and there will be 7 days of sunshine . The average for April is 14Â°C (57Â°F) in Rome.