Water chloride determination

Determination of soluble sodium chloride. By entering the graph in Figure 4-109 with the Ib/bbl of calcium chloride at the correct volume percent of water (by retort) line, the maximum amount of soluble sodium chloride can be found. If the sodium chloride content determined in Step 2 is greater than the maximum soluble sodium chloride determined from Figure 4-108, only the soluble portion should be used for calculating the total soluble salts. 

Reagent. Supporting electrolyte. Prepare a 0.5M potassium nitrate from the pure salt for chloride determinations the solution must be prepared with a mixture of equal volumes of distilled water and ethanol. 

Impurities consist of unreacted material, including alkanes and internal or branched alkenes, and other material which can be detected in the neutral oil fraction of AOS. Examination of this fraction also indicates the amount of unhydrolyzed material (sulfonate esters and sultones) and byproducts (secondary alcohols, unsaturated and 2-chloro-y-sultones) in the sample. Salt calculations are made to determine inorganic sulfates and sodium chloride. Determinations for alkalinity, color, and water are required to meet product... 

International Standard Organization. 2007. Water quality. Determination of dissolved anions by liquid chromatography of ions. Part 1 Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate. ISO 10304-1. International Organization for Standardization, Case Postale 56, CH-1211, Geneva 20 Switzerland. 

Chloride Determine as directed in the Chloride Limit Test under Chloride and Sulfate Limit Tests, Appendix IIIB, using the residue of the following Dissolve 500 mg of sample in 10 mL of hot water, add about 5 mg of sodium carbonate, and evaporate to dryness on a steam bath. Any turbidity produced does not exceed that shown in a control containing 15 (xg of chloride ion (Cl). 

Chloride Determine as directed in the Chloride Limit Test under Chloride and Sulfate Limit Tests, Appendix IIIB. Dissolve 1 g of sample in 100 mL of water. Any turbidity produced by a 10-mL portion of this solution does not exceed that shown in a control containing 70 p,g of chloride (Cl) ion. Ferric Iron Dissolve about 5 g of sample, accurately weighed, in a mixture of 100 mL of water and 10 mL of hydrochloric acid in a 250-mL glass-stoppered flask, add 3 g of potassium iodide, shake well, and allow to stand in the dark for 5 min. Titrate any liberated iodine with 0.1IV sodium thiosulfate, using starch TS as the indicator. Each milliliter of 0.1 N sodium thiosulfate is equivalent to 5.585 mg of ferric iron. 

Crosson, M. Gibb, R. Dissolved Oxygen and Chloride Determination in Water, J. Chem. Educ. 1992, 69, 830-832. 

This is best weighed in a stoppered test tube. The chloride should be from a freshly opened bottle and should be weighed and transferred in the hood. It is very hygroscopic work rapidly to avoid exposure of the compound to air. It releases hydrogen chloride on exposure to water. The quality of the aluminum chloride determines the success of this experiment. 

The composition of the THF complexes of the lanthanide trichlorides is established by dissolution of a weighed amount of each compound in water and determination of chloride potentiometrically with aqueous silver nitrate. Analysis for the lanthanide is effected by titration with disodium ethylenediaminetetraacetate using xylenol orange indicator after appropriate buffering of the solution.The IR spectra of all the trichlorides show intense bands at 1020 and 880 cm" (see below), indicative of coordinated THF. ... 

For the ion chromatographic analysis of chloride in cement, that cancels out the passivation of steel surfaces in concrete and, thus, is only admitted up to a maximum content of 0.1%, Maurer et al. [93] developed a procedure in which the cement sample is extracted with nitric acid. Since a direct chloride determination is impossible due to the high nitrate concentration in the extract, silver nitrate is added in three-fold excess to the nitric acid extract. The precipitated silver chloride is filtered off and subsequently dissolved in 100 mL of a 0.25% ammonium hydroxide solution. This solution, according to the chloride concentration, can be further diluted with de-ionized water or injected directly. 

Foreman, W.T., S.D. Zaugg, L.M. Faires, M.G. Werner, T.J. Leiker, and P.F. Rogerson. 1992. Analytical interferences of mercuric chloride preservative in environmental water samples determination of organic compounds isolated by continuous liquid-liquid extraction or closed-loop stripping. Environ. Sci. Technol. 26 1307-1312. 

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