Slightly alkaline (from 7.1 to 8.5)
The pH of sea water is from 7.5 to 8.5.
greater than 7
By the electrolysis of brine.
Chlorine is a gas so it is not mined. It is manufactured by the electrolysis of a brine (salt) solution.
There are several ways to increase the pH: * Adding a basic or alkali substance, e.g. NaOH, or a basic salt, e.g. CaCO3. * Consumption of the acid in a solution will cause the pH levels to increase (e.g Acid reacting with a metal) * The solution can be absorbing ammonia from the air * Temperature changes can affect pH * Electrolysis of some solutions can produce lowered pH values in the solution
Chlorine is produced at the anode. Brine at the cathodeOxidation reaction: 2 Cl- --'anode'--> Cl2 + 2e-
Neutral solution: pH =7Acidic solution: pH7.
By the electrolysis of brine.
Chlorine is a gas so it is not mined. It is manufactured by the electrolysis of a brine (salt) solution.
electrolysis of brine
the decrease of the pH in sauerkraut is due to the succession of lactic and acetic acid microorganisms that grow on the brine solution making it acidic.
water
By the sea where there is plenty of salt water. (Brine)
There are several processes, but the simplest is electrolysis with a diaphragm cell. Electricity is passed through the brine, hydrogen ions from the water are attracted to the cathode and discharged to form hydrogen gas. This results in a build up of hydroxide ions in the solution, effectively turning sodium chloride solution (brine) into sodium hydroxide solution (an alkali). You'll find this process in any standard chemistry text.
There are several ways to increase the pH: * Adding a basic or alkali substance, e.g. NaOH, or a basic salt, e.g. CaCO3. * Consumption of the acid in a solution will cause the pH levels to increase (e.g Acid reacting with a metal) * The solution can be absorbing ammonia from the air * Temperature changes can affect pH * Electrolysis of some solutions can produce lowered pH values in the solution
Chlorine is produced at the anode. Brine at the cathodeOxidation reaction: 2 Cl- --'anode'--> Cl2 + 2e-
Brine is a salt solution. It does not need to be concentrated in order to be brine.
it is device that used to measurethe strength of brine solution
Electrolysis of calcium chloride solution release chlorine.