::  Ammonium Fluoride Ammonium Fluoride   1. Molecular formula:NH4F 2. Molecular weight:37.04 3. Property:White crystal-like powder;deliquescent;soluble in cold water and slightly dissolved in alcohol;acidic in solution;decomposable when heated or in warm water;corrosive to glass;toxic;keep it dry and sealed. 4. Usage:Analytical reagent,micro-analysis of zirconium;glass engraving;antiseptic,chemical polishing agent,masking agent and bacteriostatic agent;extraction of rare elements. 5. Specificatios Assay: 96% 98% Impurity level:   Impurity name Index Chloride(Cl) ≤0.05% Silicate(SiO2) ≤0.2% Iron(Fe) ≤0.01% Heavy metal(Pb) ≤0.01% Ignited residue ≤0.2% 6. Packing:25kg plastic woven bag. 7. Caution at transportation:Inorganic toxicant;specified number of hazardous goods:83015