ALKALI METAL FLUORO ZINCATE AND THE PRODUCTION THEREOF

摘要

Disclosed are novel methods for producing alkali metal fluoro zincates, especially potassium fluoro zincate. Products having defined particle size regions are obtained according to the sequence of the supply of the components potassium hydroxide, zinc oxide and hydrogen-fluoride. The thus produced potassium fluoro zincate is particularly suitable as fluxing agent or fluxing agent additive during aluminium soldering and can preferably be used in wet or dry fluxing according to the particle size of said potassium fluoro zincate.