2017/1267 - A product in the form of a fine, white, odourless powder consisting of microspheres (particle size < 10 μm) with a density of approximately 2,1-2,5 g/cm3. The microspheres consist of nepheline or nepheline syenite that has been heated to make the material more ellipse-shaped and to round off the rough edges. As a result of this process, the nepheline or nepheline syenite forms a glassy surface. Nepheline and nepheline syenite are sodium potassium aluminosilicates. The product is used as an addit - The Trade Hub