The langelier saturation index li, a measure of a solutions ability to dissolve or deposit calcium. Water chemistry analysis for water conveyance, storage. Acque naturali classificazione e parametri di corrosione. The sign and magnitude of the langelier index show the waters tendency to form or dissolve scale and thus to inhibit or encourage corrosion. To ensure your swimming pool and or spa is correctly balanced we recommend regular testing by your s. The langelier saturation index can be calculated easily by using hach products to determine the ph of calcium carbonate saturation ph and the actual ph of a solution.
It can be shown that the langelier saturation index lsi approximates the base 10 logarithm of the calcite saturation level. Horizon cpo seminars primary ch 6 langelier saturation index formula. Estimation of corrosive and scaling trend in drinking water systems. Langelier saturation index calculator this calculator helps you determine the scaling potential of the water by using the langelier saturation index.
Microsoft word 3 chapter 6 langelier saturation index author. I s l e pertanto uguale alla differenza tra il ph reale dellacqua e quello di saturazione ph s. Acrobat reader software can be used for viewing pdf documents. The langelier index li is the difference between the actual measured ph and the calculated ph of water.
Pdf temperature and ionic strength corrections to the langelier. Langelier saturation index calculation sheet calculated langelier index 7. The langelier index is an approximate indicator of the degree of. Pdf introduction of langelier saturation index to production of.
C overtutore conduttivita calcolo accuratezza analisi delle acque. The values of the following indices relating to calcium carbonate scaling. May 02, 2018 the langelier index li is the difference between the actual measured ph and the calculated ph of water. Pdf the role of water for both domestic and other uses onboard ships cannot be over emphasized. The langelier saturation index li, a measure of a solutions ability to dissolve or deposit calcium carbonate, is often used as an indicator of the corrosivity of water. Langelier montreal metro, a station on the montreal metro subway 33 langelier, a bus route in montreal. Concentrazione nel calcio comprende il fattore piu comune e significativo della durezza dellacqua.
Whilst the use of langelier index may seem rather complicated, it is an accurate measure of water balance and is therefore the preferred method of many companies involved in the pool industry. Using a simple formula, the ph is derived from the values for calcium hardness, total alkalinity at ph 4. The acclaimed new record from reggaeton innovator bad bunny, now available in an exclusive cassette format. It gives an approximate measure of the degree of saturation of calcium carbonate in water. Langelier and aggressive indices langelier and aggressive. To use this sheet, replace red items with appropriate data. Water chemistry analysis for water conveyance, storage, and. Ratio of ion product to maximum ion product for caf2.