Fluoric Acid Bath For Mat Glazing How to prepare Safety Fluoric Acid Bath For Mat Glazing

Properties Identifiers 4 Properties Molecular formula HF (aq) Molar mass not applicable Appearance Colorless solution Density 1.15 g/mL (for 48% soln.) Melting point not applicable (see hydrogen fluoride) Boiling point Solubility in water Miscible. Acidity (pKa) 3.17  Identifiers CAS number 7664-39-3      ChemSpider 14214      UNII RGL5YE86CZ      EC number 231-634-8 ChEBI CHEBI:29228      RTECS number MW7875000

Hazards MSDS duPont MSDS EU Index 009-003-00-1 EU classification Very toxic (T+) Corrosive (C) R-phrases R26/27/28, R35 S-phrases (S1/2), S7/9, S26, S36/37, S45 NFPA 704 COR Flash point Non-flammable

Hydrogen fluoride is a chemical compound with the formula HF Hydrogen fluoride is a chemical compound with the formula HF. This colorless gas is the principal industrial source of fluorine, often in the aqueous form as hydrofluoric acid, and thus is the precursor to many important compounds including pharmaceuticals and polymers (e.g. Teflon). HF is widely used in the petrochemical industry and is a component of many superacids. Hydrogen fluoride boils just below room temperature whereas the other hydrogen halides condense at much lower temperatures. Unlike the other hydrogen halides, HF is lighter than air and diffuses relatively quickly through porous substances. Hydrogen fluoride is a highly dangerous gas, forming corrosive and penetrating hydrofluoric acid upon contact with tissue. The gas can also cause blindness by rapid destruction of the corneas. HF + H2O       H3O+ + F− Hydrogen fluoride is produced as by the action of sulfuric acid on pure grades of the mineral fluorite and also as a side-product of the extraction of the fertilizer precursor phosphoric acid from various minerals. See also hydrofluoric acid. The anhydrous compound hydrogen fluoride is more commonly used than its aqueous solution, hydrofluoric acid. HF serves as a catalyst in alkylation processes in oil refineries. A component of high-octane gasoline called "alkylate" is generated in Alkylation units that combine C3 and C4 olefins and isobutane to generate gasoline.

Barium Carbonate + Hidrofloric Acid Identifiers CAS number 513-77-9      ChemSpider 10121      UNII 6P669D8HQ8      EC number 208-167-3 UN number 1564 RTECS number CQ8600000 Properties Molecular formula BaCO3 Molar mass 197.34 g/mol Appearance white crystals Density 4.286 g/cm3 Melting point 811 °C Boiling point 1360 °C (decomp) Solubility in water 0.0024 g/100 mL (20 °C) Solubility soluble in HCl, HNO3, ethanol insoluble in H2SO4 Refractive index(nD) 1.60 Barium Carbonate + Hidrofloric Acid