... hotmail.comSKYPE: Genevieve.chemSpecifications1.Fe:30ppm max2.Thin yellow flakes,soluble in water3.Presenting strong alkaline solution4.Professional supplierProduct: Supply Sodium ... 10ppm, 30ppm, 50ppm and 80ppm.Property: Thin flakes, yellow or red, soluble water, presenting strong alkaline solution, easily oxidized when exposed to ...