PHOTOCHEMICAL REACTIONS IN THE ALKALI HALIDES
Abstract
The rates of gas evolution from KCl in the form of fine crystals, ground powder and single crystals of varying purity were measured and the quantum yields evaluated. Comparative experiments using AgCl showed that the gaseous products from two substances are identical but that,ALTHOUGH CONTAINING Cl, they consist largely of H. A mechanism involving the exchange of Cl with H in the OH - groups of the hydrated silica forming the interior surface of the glass walls is proposed to account for this. Measurements of the rates of gas evolution with and without a water filter confirmed that a substantial amount of the reaction is caused by the 2537 Angstroms Hg resonance line. Possible mechanisms for the photolysi are discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1962
- Accession Number
- AD0288573
Entities
People
- Lina Ben-dor
- P.w.m. Jacobs
Organizations
- Imperial College London