Reference

Solution for cleaning tin and its alloys

Solution for cleaning tin and its alloys. Jagminas, A.; Skominas, V.; Klimas, V.; Fridman, E. S. (Institute of Chemistry and Chemical Technology, Academy of Sciences, Lithuanian S.S.R., USSR). U.S.S.R. SU 1093730 A1 23 May 1984 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1984, (19), 93. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: C23G001-10; C23F001-00. APPLICATION: SU 82-3460049 6 May 1982. DOCUMENT TYPE: Patent CA Section: 56 (Nonferrous Metals and Alloys) The soln. ensuring improved quality of surface cleaning and preventing darkening of the surface contains fluorosilicic acid [16961-83-4] or its ammonium salt 1-50, thiourea [62-56-6] 20-60, a complexing agent consisting of 31 of sulfamic, tartaric, citric, malic, glycolic, gluconic, glyceric (a,b-dihydroxypropionic) acid [473-81-4] or its ammonium salt 50-200, and a surfactant consisting of hydroxyethylated C10-C18 aliph. alcs. (Sintanol DS 10 [12627-29-1]) 0.5-10 g/L.

Investigation of an aerosol with pilot units installed on site

Investigation of an aerosol with pilot units installed on site. Modig, Gunnar (Supra AB, Landskrona, Swed.). New Dev. Phosphate Fert. Technol., Proc. Tech. Conf. ISMA Ltd., Meeting Date 1976, 47-60. Edited by: Carpentier, L. J. Elsevier: Amsterdam, Neth. (English) 1977. CODEN: 35WAAI. DOCUMENT TYPE: Conference CA Section: 59 (Air Pollution and Industrial Hygiene) The scrubbing liq., H2SiF6 [16961-83-4], used in the H3PO4 concentrator plant caused high F emissions (1000 mg F/m3). The variations of F concn. in waste gases with alterations made in liq. flow rate and pH did not agree with gas absorption theory. A packed column, plate scrubber, Brink mist eliminator, and Venturi scrubber had av. removal efficiency of 31, 50-92, 85-99, and 95-9.3%, resp.