Reference

Investigations on the use of natural mineral sorbents from northeast Bulgaria in the food and tobacco industries

Investigations on the use of natural mineral sorbents from northeast Bulgaria in the food and tobacco industries.Some chemicals with cas registry numbers like 7440-70-2 and 7647-01-0 are also used. A study of the quantity of calcium and iron in wines treated with natural mineral sorbents. Part II. Lesichkov, V.; Piskuleva, N. (Bulg.). Sb. Dokl. - Nauchna Ses. Druzh. Med. Khim., 4th, 30-4. Edited by: Lesichkov, V. Nauchno-Tekh. Druzh. Med. Khim.: Varna, Bulg. (English) 1983. CODEN: 50UZA4. DOCUMENT TYPE: Conference CA Section: 16 (Fermentation and Bioindustrial Chemistry) White wines were fined with 6 bentonites from different areas in northeastern Bulgaria. The bentonites were activated with 10% NaOH, 15% HCl, or 20% H2SO4. All the bentonites increased the Fe content of the wines, making necesssary a treatment with K4Fe(CN)6. All the bentonites except those activated with H2SO4 also added Ca to the wines. The increases in Fe and Ca contents of the wine varied with origin of the bentonite. .

Effect of salts on soil potassium release under drying conditions

Effect of salts on soil potassium release under drying conditions. Bayoumi, N. A.; Khalil, R. A.; El-Seidy, M. M. (Fac. Agric., Minufiya Univ., Egypt). Minufiya J. Agric. Res., 6, 321-32 (English) 1983. CODEN: MJAREE. DOCUMENT TYPE: Journal CA Section: 19 (Fertilizers, Soils, and Plant Nutrition) Increments of salts and HCl were added to moist samples taken from the Exptl. Stations, Faculty of Agriculture, Shebin-El-Kom, and Kous, Quena Governorate. The soil samples were then dried and extd. with neutral 1N NH4COOH to det. the K release. A continuous increase in K released existed when the moist samples were 1st dried at room temp. and then to 105°. The release of K at high temps. appears to be a part of the same extractable K-moisture relation. Soils that normally release K on drying showed a continuous net fixation of K when enough K salt was added. On the other hand, the addn. 7647-01-0 and 7440-09-7 which are cas registry numbers of substances are two of reagents here. of small increments resulted in both fixation and release under the same drying sequence. The release of K is appreciably reduced when NH4Cl was added to the soil prior to drying due to the contraction of the layer lattice. CaCl2 addn. had little or no effect on K release by drying, while both NaCl and HCl addn. resulted in a slight K release due to ion-exchange phenomenon. .