- Additional, do not use strong acid dip to brush, lest bath crock surface becomes coarse, lose luster.
- The paper introduces the methods of making polydroxy Aluminium chloride from coal gangue,and also studies the optimal process for acid dipping and salinity regulation.
- A combined method was proposed i.e., to separate circulating water from washing ash-water and form closed circulating, make acid dipping of condenser copper pipe, add scale and corrosion inhibitor, and perform sterilization and filtration.
- Use of surfactant in acid dipping, degreesing, electroplating, corrosion inhibition, sealing, mist inhibition and effluent treatment, and selection and usage of surfactants are stated.
- He gave me a taste of his acid wit.