isoAmyl ethyl ketone for industrial use — List of methods of test
Specifies the sampling, the determination of distillation characteristics, of the density at 20 0C, of residue on evaporation on a water bath, of the water content, of alcoholic impurities, of the acidity to phenolphthalein and the measurement of colour in Hazen units.
Furfural for industrial use — List of methods of test
Specifies the sampling, determination of distillation characteristics, density at 20 0C, water content, total carbonyl compounds and the acidity to phenolphtalein.
Acetaldehyde for industrial use — Determination of water content — Karl Fischer method
Prescribes that samples shall be taken in clean stainless steel flasks purged with nitrogen. Samples shall only be drawn at temperatures below 20 0C. The Process uses the method of the electrometric titration according to ISO 760. Either dimethylformamide or a mixture of dimethylformamide and pyridine is used for the sample solvent.
Diacetone alcohol for industrial use — List of methods of test
Specifies the sampling, the determination of distillation characteristics, of the density at 20 0C, of residue on evaporation on a water bath, of the water content, of the acidity to phenolphthalein, the test of miscibility with water and the measurement of colour in Hazen units.
Hexylene glycol for industrial use — List of methods of test
Specifies the sampling, the determination of distillation characteristics, of the density at 20 0C, of the water content, of the acidity to phenolphthalein, the test of miscibility with water and the measurement of colour in Hazen units.
Tritolyl phosphate for industrial use — List of methods of test
Specifies the sampling, the determination of the density at 20 0C, of the water content, of the acidity to phenol red, of apparent free phenols content and the measurement of colour in Hazen units.
Tritolyl phosphate for industrial use — Determination of apparent free phenols content — Volumetric ...
The method specified determines only those phenols capable of reacting at the 2nd, 4th and 6th position (-OH = 1). The procedure consists in extraction of free phenols from a test portion with sodium hydroxide solution. Bromination of these phenols with potassium bromide-bromate solution in an acid medium and determination of the excess bromine after reaction with potassium iodide by titration…
Adipate esters for industrial use — List of methods of test
Specifies the sampling, the determination of the density at 20 0C, of the water content, of the acidity to phenolphthalein, of the ash and esther contents, the measurement of colour in Hazen units and of the colour after the heat treatment.
Adipate esters for industrial use — Determination of ester content — Volumetric method
The method is applicable to simple and mixed alcohol esters that are liquid at ambient temperature. The following principle is specified: Saponification of the ester using potassium hydroxide in ethanolic solution followed by titration with standard volumetric hydrochloric acid solution in the presence of phenolphthalein as indicator. In the case of mixed alcohol esters the relative molar mass of…
