Ацетальдегид технический. Определение содержания железа. Фотометрический метод с применением 2,2'-бипиридила
Название (англ.):
Acetaldehyde for industrial use; Determination of iron content; 2,2'- Bipyridyl photometric method
Описание (англ.):
The principle consists in the evaporation to dryness of a test portion and dissolution of the residue in hydrochloric acid. Reduction of iron(III) by means of hydroxylammonium chloride. Formation of the iron(II)- 2,2'-dipyridyl complex. Photometric measurement of the coloured complex at a wavelength of about 522 nm. Specifies the use of a spectrophotometer or photoelectric absorptionmeter.As an alternative it is permitted to employ a visual method comparing the test solution with a series of reference solutions. Has also been approved by the IUPAC.
Дата регистрации:
08.01.74
Дата введения:
01.12.73
Дата отмены:
30.05.02
Код КГС:
Л29
Код ОКСТУ:
2417;2409
Код ОКС(МКС):
71.080.80
Код ОКП:
2417;2409
Нормативные ссылки:
NBN T 04-054-1983, EQV*NF T20-763-1985, EQV
Ключевые слова:
ACETALDEHYDE CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHEMICALS DETERMINATION OF CONTENT IRON PHOTOMETRY PHOTOMETRY (CHEMICAL ANALYSIS) CHEMICAL ANALYSIS AND TESTIN SPECTROCHEMICAL ANA