Sodium Bifluoride also known as Sodium Hydrogen Difluoride Is mainly used as a precursor to sodium fluoride, millions of tons of which are produced annually. It is used to manufacture tin plates, as a neutralizer in laundry to preserve anatomical/zoological samples, and for glass etching. It is also used in antiseptics, leather bleaches, and cleaners (for stone, brick, ceramics, and masonry). It is also utilized in the synthesis of fluoride glasses at RT. Specification Assay: 98.00 % Min. Appearance: White free flowing powder Solubility: Highly soluble in water Melting Point: Starts to decompose into NaF and HF above 140C Hydrogen Fluoride (HF): 32.00 % Min. Fluorine (F): 59.65 % Min. Sodium (Na): 37.20 % Min. Moisture (@ 100C): 0.80 % Max. Iron(III) Oxide (Fe2O3): 0.02 % Max. Silica (SiO2): 0.10 % Max. Water Insoluble: 0.20 % Max. pH (1% Solution): Acidic Sieve Grading/Density 100 BSS (152 �¼m) = 100 %: + 100 BSS (152 1/4m) = NIL + 200 BSS (75 �¼m) = 20 %: 200 BSS (751/4m) = 80 % Packing 55.12 lb bag, 40 bags/pallet DOT Transportation UN/NA: 2439 Proper Shipping Name: Sodium Hydrogen Difluoride Hazard Class: 8 Packing Group: II