lead sulphates 예문

예문모바일

As a battery is discharged the density of lead sulphate in solution increases.
When a cell is subsequently charged, the lead sulphate and water are turned back into lead and acid.
At this point, the lead sulphate will begin to precipitate out of solution onto the battery plates, forming a spongy film.
In 1880, Faure patented a method of coating lead plates with a paste of lead oxides, lead sulphates which adhered to the lead plate.
The metal was obtained from the flue deposits ( mainly lead sulphate ) from the manufacture of sulphuric acid from pyrites, one of the products of the Washington works.
When a cell discharges, the lead and diluted acid undergo a chemical reaction that produces lead sulphate and water ( see lead acid battery for details of the chemical reaction ).
Until the early 1960s white lead ( lead carbonate / lead sulphate ) was added in substantial quantities as the main white pigment in some paint products intended for use as a primer or top coat over metal and wood, both internally and externally.
If the charging current is too great, some of it will be wasted decomposing water into hydrogen and oxygen, in addition to the intended conversion of lead sulphate and water into lead dioxide, lead, and sulphuric acid which reverses the discharge process.