SSF Specifications: 
Sodium fluorosilicate(based on dry):99%min 
Iron:  0.02%max 
Free  acid(based on HCL):0.1% max 
Heave metal(based on Pb): 0.02% max 
Water-insoluble matter: 0.4% max 
Loss on Drying at 105C: 0.3% max 
Fineness(through 250 um test bolter):90%min 

It is used as antiseptic in timber industry,hygroscopic agent of acid-resisting concrete,solidifying agent in natural latex products, additive in plating with zinc,nickel,iron and filler in plastic and fluorinating agent in pharmaceuticals and drinking water. It is used to produce insecticide  in pesticide industry and sodium fluoride in man-made cryolite. 

CNBM Group, established in 1984 as a state owned company, we specializing in minerals and chemicals manufacturing, research and development, as well as marketing. The quality of our chemical products reaches standard of the best international level thanks to our professional technique, scientific management and perfect quality-monitoring & certification system. Our products go to every part of the country, and have been exported to more than 30 foreign countries and regions. 

At present, we focuses on the development and utilization of phosphate mines as well as production of Fluoride Chemicals, Phosphorus Chemicals, and Tin Chemicals. Our products line covers Sodium Silicofluoride, Sodium Fluoride, Magnesium Flourosilicate, Phosphoric Acid, etc.