At what boiler pressure does silica begin to vaporize into steam?

Silica begins to vaporize into steam at pressures below 16.5 mPa. Understanding silica's behavior in boiler systems is crucial for managing water quality and preventing scaling. At higher pressures, silica remains in a liquid state, which is desirable to avoid potential deposits in the boiler. When the pressure is reduced below this threshold, silica can vaporize, leading to complications such as fouling or scaling in turbines and other equipment. Properly managing the boiler pressure is essential in maintaining system efficiency and reliability, as the presence of vaporized silica in steam can lead to operational issues.