Application Finder
- AN-H-040Determination of HCl (ppm range) in silicone oil
Determination of low content of HCl (around 10 ppm) in silicone oil.
- AN-H-041Standardization of cetyl pyridinium chloride solutions
Standardization of cetyl pyridinium chloride solutions for use as a cationic surfactant titrant in the determination ofanionic surfactants such as sodium lauryl ether sulfate.
- AN-H-042Standardization of thiosulfate titrant for copper determinations
This Application Note discusses the standardization of thiosulfate titrant for use in the determination of copper with thermometric titration.
- AN-H-043Determination of copper by iodometric titration
Determination of copper, principally in copper mining and refining solutions. The method may also be used fordetermination of purity of copper metal. Optimal results are obtained when aliquots containing copper in the rangeapproximately 3 - 6 mmol Cu are titrated.
- AN-H-044Standardization of EDTA titrant by copper
Thermometric complexometric titration of metals is often performed with tetrasodium EDTA. This Application Note explains the standardization of tetrasodium EDTA titrant with copper.
- AN-H-045Standardization of EDTA titrant by magnesium
This Application Note explains how to use magnesium to standardize tetrasodium EDTA titrant.
- AN-H-046Standardization of copper back-titrant by EDTA
Standardization of copper back-titrant using standard tetrasodium EDTA titrant in the determination of metals.
- AN-H-047Determination of nickel by EDTA back-titration
Determination of nickel in refinery and plating solutions. When other metals capable of being complexed by EDTA are present, these will interfere and enhance the result for nickel.
- AN-H-048Standardization of disodium dimethylglyoximate for the determination of nickel
Standardization of disodium dimethylglyoximate by thermometric titration with standard Ni(II) solution.
- AN-H-049Determination of nickel by titration with disodium dimethylglyoximate
Determination of nickel in solution by titration with standard disodium dimethylglyoximate.
- AN-H-050Determination of sodium and potassium silicates
Determination of sodium, potassium, and silica values in sodium and potassium silicates.
- AN-H-051Determination of sodium hypophosphite
Determination of sodium hypophosphite in electroless plating solutions.
- AN-H-052Determination of nickel in electroless plating solutions
Thermometric titration of nickel in electroless plating solution with disodium dimethylglyoximate.
- AN-H-053Determination of aluminum by fluoride titration
Determination of aluminum in acidic, basic, and neutral solutions; including aluminum chloride, aluminum chlorohydrate (also in anti-perspirant formulations), alum, etching solutions, and aluminate solutions.
- AN-H-055Analysis of sodium and phosphorus in sodium tripolyphosphate precursor solutions
Determination of Na, P, and [Na]/[P] in precursor solutions and solids in the manufacture of sodium tripolyphosphate.
- AN-H-056Standardization of barium acetate solution
Standardization of barium acetate titrant used in the determination of sulfate in phosphoric acid. The same procedure is applied if barium chloride is chosen as the titrant.
- AN-H-057Standardization of sodium fluoride for aluminum titrations
Standardization of sodium fluoride titrant for determination of aluminum.
- AN-H-058Determination of sodium as chloride in ketchup and sauces
Determination of sodium as chloride in ketchups, sauces and, similar food products.
- AN-H-060Standardization of 0.1 mol/L perchloric acid in glacial acetic acid
Standardization of 0.1mol/L perchloric acid in glacial acetic acid by catalyzed endpoint thermometric titration.
- AN-H-061Direct titration of sodium
Determination of sodium in salts, process solutions, and foods.
- AN-H-062Standardization of titrant for direct titration of sodium
Standardization of titrant for direct determination of sodium.
- AN-H-064Total base number (TBN) in used motor oils
The determination of the total base number (TBN) in motor oils is accomplished by means of titration with a standard solution made up of trifluoromethanesulfonic acid in glacial acetic acid and isobutyl vinyl ether as reagent for improved end point identification.
- AN-H-065Determination of salts of carboxylic acids by aqueous acidometric titration
Determination of sodium and potassium salts of carboxylic acids in aqueous media. May be used for analysis of reagent purity.
- AN-H-066Carbonate and bicarbonate in solution
Determination of bicarbonate and carbonate in a mixture by sequential thermometric titrations.
- AN-H-067Determination of chloride in Bayer process liquor
Determination of chloride in Bayer process liquor.
- AN-H-068Determination of ferric ion by iodometric titration
Determination of Fe3+ by iodometric titration. Useful if Fe3+ is accompanied by Al3+, Mg2+, Ca2+ and Fe2+.
- AN-H-070Determination of ferric and cupric Ions in copper refining solutions
Determination of Fe3+ and Cu2+ in copper refining solutions by thermometric titration. It was found that the conventional approach of masking Fe3+ to permit the iodometric determination of Cu2+ is not possible in some copper refining solutions.
- AN-H-071Determination of ammonium ions by titration with hypochlorite
Determination of ammonium ions in ammonium salts and mixtures containing ammonium ion.
- AN-H-073Determination of total acid number (TAN) in biodiesel
Determination of Total Acid Number (TAN) values in biodiesel to <0.05 mg KOH/g sample.
- AN-H-074Determination of calcium and magnesium in seawater
Determination of calcium and magnesium in seawater. The method is suitable for determining the effect of caustic soda and alumina refinery aluminate solutions on the calcium and magnesium content of seawater.
- AN-H-075Standardization of tetrasodium EDTA solutions
Standardization of ~1mol/L tetrasodium EDTA solutions for thermometric complexometric analysis.
- AN-H-076Determination of iodine value (IV) in fats and oils
Iodine value (IV) is a measure of the total number of double bonds present in fats and oils. It is expressed as the «number of grams of iodine that will react with the double bonds in 100 grams of fats or oils». The determination is conducted by dissolving a weighed sample in a non-polar solvent such as cyclohexane, then adding glacial acetic acid. The double bonds are reacted with an excess of a solution of iodine monochloride in glacial acetic acid («Wijs solution»). Mercuric ions are added to hasten the reaction. After completion of the reaction, the excess iodine monochloride is decomposed to iodine by the addition of aqueous potassium iodide solution, which is then titrated with standard sodium thiosulfate solution.
- AN-H-077Determination of sodium in brines by aluminum titration
Determination of sodium in seawater and similar brines. This procedure is suitable for the analysis of sodium in seawater contaminated with sodium aluminate solutions emanating from alumina refineries, and seawater which has been used for the neutralization of alumina refinery waste («red mud») slurries.
- AN-H-078Determination of total halides in brines
Determination of total halides (Cl- + Br- +I-) in seawater and similar brines. This procedure is suitable for the analysis of total halides in seawater contaminated with sodium aluminate solutions emanating from alumina refineries, and seawater which has been used for the neutralization of alumina refinery waste («red mud») slurries. Given the small concentration of bromine andiodine in seawater, the total halide content approximates the chloride concentration.
- AN-H-079Determination of free acid in heat exchanger cleaning acid
Determination of free acid in sulfuric acid («acid shot») solutions employed in the removal of silicate scale in heat exchangers. This method is suitable for acid shot solutions where the silicic acid content is so high that the solutions have gelled.
- AN-H-080Determination of total sodium in sodium aluminate liquors by aluminum titration
Determination of the total sodium content of sodium aluminate liquors, such as Bayer Process liquor. This method is suitable for the analysis of all sodium aluminate solutions down to at least 1 g/L as Na2CO3. The determination may be automated by adding an 814 USB sample processor to an 859 Titrotherm.
- AN-H-081Determination of phosphoric and nitric acid in nitrophos liquors
Determination of phosphoric and nitric acids in liquors from the Nitrophos fertilizer manufacturing process.
- AN-H-082Determination of surface acidity in Zeolites and other materials with a high specific surface area
This Application Note outlines the determination of total acidic active surface sites in zeolites with thermometric titration.
- AN-H-083Determination of surface basicity in zeolites and other materials with a high specific surface area
This Application Note shows that the parameter of surface basicity of zeolites can be measured by thermometric titration.
- AN-H-084Determination of mixtures of sulfuric, phosphoric, and nitric acids
Determination of mixtures of sulfuric, phosphoric, and nitric acids. The procedure is suitable for automated analysis using an 814 Sample Processor.
- AN-H-086Determination of sodium in potato chips
Titration of an unfiltered suspension of the sample with a standardized solution of aluminum containing a stoichiometric excess of potassium ions in the presence of ammonium hydrogen difluoride at ~ pH 3 to give an exothermic reaction, forming insoluble NaK2AlF6. The titrant is standardized against a solution prepared from anhydrous sodium sulfate or sodium carbonate. In addition to this application note, you can find more information on thermometric sodium determination in foods in our application video available on YouTube: https://youtu.be/lnCp9jBxoEs
- AN-H-087Determination of hydrofluoric acid by aluminum titration
Determination of hydrofluoric acid in mixed acid etchant solutions.
- AN-H-088Automated determination of total acid number (TAN) in oils
Automated determination of total acid number (TAN) in new and used lubricating oils and crude oils using the 814 USB Sample Processor. Dissolve oil sample in mixture of toluene and 2-propanol, add paraformaldehyde and titrate with 0.1 mol/L or 0.01 mol/L KOH in propan-2-ol. The endpoint is indicated by an endothermic response caused by the base-catalyzed depolymerization of paraformaldehyde.Reference: 1. M. J. D. Carneiro, M. A. Feres Júnior, and O. E. S. Godinho. Determination of the acidity of oils using paraformaldehyde as a thermometric end-point indicator. J. Braz. Chem. Soc. 13 (5) 692-694 (2002)
- AN-H-089Automated analysis of hexafluorosilicic acid
Automated determination of the H2SiF6 and HF contents of industrial grade hexafluorosilicic acid.
- AN-H-090Nickel in electroless nickel solutions by thermometric EDTA titration
Automated thermometric titration of the nickel content of electroless nickel plating solutions. The determination is suitable for fully automated titration employing a 814 Sample Processor.
- AN-H-091Standardization of tetrasodium EDTA solutions with standard magnesium solution
Standardization of 1 mol/L tetrasodium EDTA (Na4EDTA) solutions by titration with standard magnesium solution.
- AN-H-092Analysis of zirconium acetate
Automated determination of the zirconium content of zirconium acetate, as well as other zirconium compounds which can be rendered soluble as zirconium acetate.
- AN-H-093Determination of boric acid by fluoride titration
Determination of boric acid in electroless plating solutions.
- AN-H-094Determination of boron in ores by fluoride titration
Determination of boron in ores of the element such as borax and ulexite.
- AN-H-095Determination of urea by non-aqueous titration
Dissolution of urea in glacial acetic acid, and titration with standard 0.1 mol/L trifluoromethanesulfonic acid in acetic acid using isobutyl vinyl ether as a thermometric endpoint indicator.
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