ISO 2886:1973 PDF
Acetaldehyde for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method
Acetaldehyde for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 3
- Дата публикации:
- 1 декабря 1973 г.
- Издание:
- ISO IS 2886 edition 1 version 1
- ICS:
- 71.080.80
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.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 2886:1973
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