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Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of ammoniacal nitrogen content — Volumetric method after distillation [Withdrawn without replacement] by ISO/TC 47 Chemistry is a reference work available to read on EtoBox.
What is Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of ammoniacal nitrogen content — Volumetric method after distillation [Withdrawn without replacement] about?
Specifies a titrimetric method consisting in distillation of the ammonia after displacement by an alkaline solution; absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The absorption of the ammonia may also be carried out in an excess of boric acid solution. The titration, in this case, is carried out directly with a standard volumetric sulphuric acid solution.
Who reads Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of ammoniacal nitrogen content — Volumetric method after distillation [Withdrawn without replacement]?
It is typically read by working professionals who need an authoritative practice reference.
Common subject areas: medicine, law, business, engineering.
- Author
- ISO/TC 47 Chemistry
- Publisher
- ISO
- Published
- 1973
- Language
- EN
- Category
- reference
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