Ammonium fluoride is a transparent, no color square material at room temperature, and it is a little bit sour to the taste of it. But because it is very easy for ammonium fluoride vapor so will deliquescence phenomenon, it will have a very strong acid after dissolved in water, acidic corrosion of glass enough of it, so that it should be careful not to contact with skin and in aqueous solution using it, otherwise after the skin and its water solution contact can have very serious injury.

Ammonium fluoride aqueous solution because of strong acidity, so it can be used for etching of glass products, and also to use as a preservative and disinfectant to use. In addition, a small amount of water solution can also be used as a chemical polishing agent on the surface of metal, which is the original rust of the metal surface of the material to remove and then display the color of metal products. In addition it can also be used to analyze the reagent or used for titanium plate engraving, but in the need to carve the time to add some of the oxidation of the solution to reduce the brittleness of titanium.
Ammonium fluoride could be easily ignited, if you fire was ignited by fire when needed in both fire and gas clothes, if the isolated region occurred leak pollution if should put all the staff to quickly transfer the scene immediately, then immediately blocked the leak. Just sales would be leaked by the staff wearing protective clothing carefully to the pollutants leaked to clean out, and put these items to transfer to a safe place, and even try to avoid cleaning dust.