Dust from dry powder may be ignited by static electricity. Hydrogen fluoride is an industrial raw material used in the manufacture of products including refrigerants, gasoline and aluminum. 0 Answers/Comments. Hydrosulfuric Acid. Nitrous Acid. [38] H2S-ic. Hydrogen fluoride is the correct name for the compound HF. The halogens all form binary compounds with hydrogen, and these compounds are known as the hydrogen halides: hydrogen fluoride (HF), hydrogen chloride (HCl), hydrogen bromide (HBr), hydrogen iodide (HI), and hydrogen astatide (HAt). Hafnium powder, dry, is a grayish metallic colored powder. The dry powder reacts with moisture to produce hydrogen, a flammable gas.The heat from this reaction may be sufficient to ignite the hydrogen.It does not appreciably react with large quantities of water. Yes, HF is an ionic compound. Make sure when you switch it to a formula you add a H, and balance the formula.-ous. s. Expert answered|Masamune|Points 80477| Log in for more information. When hydrogen fluoride is dissolved in water, it is called hydrofluoric acid. Phosphorous Acid. Fluoride ions are found in various minerals but are only present in trace amounts in water.Its various salt forms and minerals play numerous roles as chemical reagents, industrial chemicals, and commercial products. HF. The hydrogen and fluorine atoms are bound together by a pair of electrons, one electron contributed by the hydrogen atom and one by the fluorine atom. HF begins to accept fluoride ions, forming the polyatomic ions (such as bifluoride, HF â 2 ) and protons, thus greatly increasing the acidity of the compound. H3PO4. Hydrogen fluoride is a chemical compound that contains fluorine. [37] Hydrofluoric acid is also the strongest of the hydrohalic acids in acetic acid and similar solvents. replace the ending of a polyatomic with the ending of -ate, with -ic. All of these except HF are strong chemical acids when dissolved in water. Updated 12/16/2018 7:12:14 AM. Phosphoric Acid. In chemical compound: Trends in the chemical properties of the elements â¦and fluorine react to form hydrogen fluoride, which contains HF molecules. Physical properties: Hydrogen fluoride is a colorless gas with a density of 1.15 g/L at room temperature, or a colorless liquid (below 20°C) with a density of 0.99 g/mL. HF (aq) is a weird acid as it is classified as 'weak' yet it is extremely dangerous. H3PO3. Carbonic Acid. Asked 10/30/2018 8:10:19 AM. As the electronegativity difference is greater than 1.4 it is a ionic compound. The hydrogen fluoride gas is then dissolved in water to prepare the hydrofluoric acid, in different concentrations. When hydrogen fluoride is dissolved in water, it may be called hydrofluoric acid. Having a chemical formula of Fâ, fluoride ion is the simplest inorganic, monatomic anion of fluorine with basic properties. Electronegativity of H is 2.1 and that of F is 3.98. H2CO3. HNO2. Hydrogen fluoride is a colorless, corrosive gas or liquid made up of a hydrogen atom and a fluorine atom. It can exist as a colorless gas or as a fuming liquid, or it can be dissolved in water. Question|Asked by BlueberryCheesecake|Rated good. It is considered a trace element. HF(g) is a colourless gas whose aqueous solution is known as Hydrofluoric acid, which is the real danger.