THE HYDRIDE METHOD FOR THE RAPID DETERMINATION OF 'FREE' WATER IN MINERALS.
Abstract
A rapid procedure for the determination of 'free' water in minerals is described which makes use of the reaction: CaH2 + 2H2O yields Ca(OH)2 + 2H2. The pressure change caused by H2 in the reaction is measured and the corresponding moisture content calculated. Parallel determinations using oven drying were made in order to show the differences between the two methods. The hydride procedure measures only 'free' water whereas the conventional heating method includes both 'free' water and water of 'activated' adsorption and/or water of hydration involving adsorption energies greater than 5-10 Kcals per mole. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1965
- Accession Number
- AD0617561
Entities
People
- Necip Guven
- Paul F. Kerr
Organizations
- Columbia University