Spectrophotometric Studies on the Composition of Ammonia- Cobalt(II)-Dioxane Complex and its Application in the Estimation of Nitrogenas Kjeldahlised Ammonia
| Main Authors: | J. P. SINGHAL, SAMIULLAH KHAN, G. K. GUPTA |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1973
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6420207 |
Daftar Isi:
- Chemical Laboratory, Faculty of Engineering, Muslim University, Aligarh (U.P.) (Manuscript received 10 May 1972; revised 11 August 1972; accepted 27 September 1972) Ammonia when allowed to interact with cobalt(II) in presence of dioxane produced a yellowish brown colour in the pH range 5.5-7.5. The colour proved to be sufficiently specific to warrant a close spectrophotometric examination as regards to proper wavelength, reaction ratio, the effect of time and other variables such as concentration of dioxane. The )'max of the complex was found to be 390 nm and the reaction ratio by Job's method of continuous variation as 3 : 2. Results pointed to the possible application of this reaction for the spectrophotometric determination of Kjeldahlised nitrogen in soils and inorganic compounds.