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| | Hexafluorophosphoric acid Basic information |
| Product Name: | Hexafluorophosphoric acid | | Synonyms: | fluorophosphoricacid[hpf6];hexafluoro-phosphate(1-hydrogen;Hexafluorophosphoric acid, ca. 65% soln. in water;Hexafluorophosphoric Acid Solution, 65wt.% in H2O;Hexafluorophosphoric acid, 60 wt.% solution in water 500GR;Hexafluorophosphoric aci;Hexafluorophosphoric acid, 60 wt.% solution in H2O;Phosphate(1-),hexafluoro-, hydrogen (1:1) | | CAS: | 16940-81-1 | | MF: | F6HP | | MW: | 145.97 | | EINECS: | 241-006-5 | | Product Categories: | inorganic acid;Preservative;Pyridines | | Mol File: | 16940-81-1.mol |  |
| | Hexafluorophosphoric acid Chemical Properties |
| Melting point | 10 °C | | density | 1.651 g/mL at 25 °C | | storage temp. | 2-8°C | | solubility | reacts with H2O | | form | Fuming Solution | | color | Colorless or slightly colored | | Water Solubility | hydrolyzes slowly | | Exposure limits | ACGIH: TWA 0.5 ppm(2.5 mg/m3); Ceiling 2 ppm (Skin)
OSHA: TWA 3 ppm
NIOSH: IDLH 30 ppm(250 mg/m3); TWA 3 ppm(2.5 mg/m3); Ceiling 6 ppm(5 mg/m3) | | Stability: | Stable. Incompatible with strong oxidizing agents. | | CAS DataBase Reference | 16940-81-1(CAS DataBase Reference) | | EPA Substance Registry System | Phosphate(1-), hexafluoro-, hydrogen (1:1) (16940-81-1) |
| | Hexafluorophosphoric acid Usage And Synthesis |
| Chemical Properties | colourless to slightly brown liquid (aqueous solution) | | Uses | Metal cleaners, electrolytic or chemical polishing agents for the formation of protective coatings
for metal surfaces, and as a catalyst. | | Uses | Hexafluorophosphoric acid is used as a catalyst. It is also used as a metal cleaner and chemical polishing agent for the formation of protective coatings of metal surfaces.. | | General Description | A clear colorless aqueous solution containing 60 percent hydrogen hexafluorophosphate (HPF6) by mass. Density 1.65 g / cm3. Corrosive to metals and tissue. | | Air & Water Reactions | Fumes in air. Soluble in water with release of heat. | | Reactivity Profile | Hexafluorophosphoric acid reacts exothermically with chemical bases (examples: amines, amides, and inorganic hydroxides). These reactions can generate dangerously large amounts of heat in small spaces. Dilution may generate significant heat. Reacts with active metals, including such structural metals as aluminum and iron, to release hydrogen, a flammable gas. Can initiate the polymerization of certain alkenes. Reacts with cyanide compounds to release gaseous hydrogen cyanide. Generates flammable and/or toxic gases in contact with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and strong reducing agents. Additional gas-generating reactions occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and carbonates. May catalyze (increase the rate of) chemical reactions. | | Hazard | Strong irritant to tissue. | | Health Hazard | TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. | | Fire Hazard | Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. |
| | Hexafluorophosphoric acid Preparation Products And Raw materials |
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