Deutsch: Alkaline
An Alkaline is a solution having a pH of more than 7. Alkalinity is the name given to the quantitative capacity of water to neutralize an acid. Measuring alkalinity is important in determining a stream's ability to neutralize acidic pollution from rainfall or wastewater. It is one of the best measures of the sensitivity of the stream to acid inputs. There can be long-term changes in the alkalinity of rivers and streams in response to human disturbances.

In the industrial and industry context, alkaline refers to a solution with a pH greater than 7, meaning it is basic or soluble in water. Alkaline substances are often used for cleaning, neutralizing acids, and increasing the pH level of a solution.

Examples of alkaline substances in the industrial and industry context include:

  • Sodium hydroxide (NaOH), also known as caustic soda, used for cleaning and neutralizing acids
  • Potassium hydroxide (KOH), used as a base in the manufacture of soap, detergents, and other cleaning products
  • Calcium hydroxide (Ca(OH)2), also known as slaked lime, used as a pH adjuster and in water treatment
  • Ammonia (NH3), used as a cleaning agent and in the production of fertilizers and other chemicals
  • Borax (Na2B4O7), used as a cleaning agent and in the production of glass and ceramics
  • Sodium carbonate (Na2CO3), also known as washing soda, used for cleaning and as a water softener
  • Potassium carbonate (K2CO3), used in the production of soaps and detergents, and as a pH adjuster in water treatment.


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