Hydrofluoric acid
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Hydrofluoric acid
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CAS No:
7664-39-3
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Formula:
FH
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Chemical Name:
Hydrofluoric acid
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Synonyms:
Hydrofluoric acid;Anhydrous hydrofluoric acid;Fluorhydric acid;Hydrofluoric acid gas;Hydrogen fluoride (HF);Hydrogen fluoride;Antisal 2b;Fluorine monohydride;Hydrogen monofluoride;Fluorine hydride (FH);Fluoric acid;Alsurf 45;G-C Hydrofluoride Gel;Urine Luck 6.3;Vita ceramic etch;Ultradent Porcelain Etch;Porcelain Conditioner;SA-X;32057-09-3;326604-75-5
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CAS No:
Description
It appears as colorless fuming liquid. It is intensively exothermic when being dissolved in water and further become hydrofluoric acid. colourless gas with a pungent odour
Characteristics
0
0.53270
colourless gas with a pungent odour
0.991 g/cm3 @ Temp: 19.54 °C
-83.36 °C
20 °C
-37.8ºC
H2O: soluble
Protect against physical damage. Store at in well-ventilated area, separated from other storage.
25 mm Hg ( 20 °C)
1.27 (vs air)
LC50 (15 min.) in rats, guinea pigs: 2689, 4327 ppm (Rosenholtz)
Nonflammable Gas
Safety Information
II
8
UN 1790
2
R26/27/28; R35
S26-S36/37-S45-S7/9
MW7875000
C
Store only in original container. Separated from food and feedstuffs and incompatible materials. See Chemical Dangers. Cool. Ventilation along the floor. Store in an area without drain or sewer access.
Stable. Hygroscopic. Incompatible with glass, alkali metals, light metals, alkaline earth metals
P260-P280-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338-P403 + P233
H300 + H310 + H330-H314
Hydrofluoric acid Use and Manufacturing
Hydrogen fluoride is a chemical compound with the chemical formula HF. This colorless gas or liquid is the principal industrial source of fluorine, often as an aqueous solution called hydrofluoric acid. It thus is the precursor to many important compounds including pharmaceuticals and polymers (e.g. Teflon). HF is widely used in the petrochemical industry as a component of superacids. Hydrogen fluoride boils near room temperature, much higher than other hydrogen halides. Unlike other hydrogen halides, HF is lighter than air.Hydrogen fluoride is a highly dangerous gas, forming corrosive and penetrating hydrofluoric acid upon contact with moisture. The gas can also cause blindness by rapid destruction of the corneas.French chemist Edmond Frémy (1814–1894) is credited with discovering anhydrous hydrogen fluoride while trying to isolate fluorine, although Carl Wilhelm Scheele prepared hydrofluoric acid in large quantities in 1771, and this acid was known in the glass industry before then.
Computed Properties
Molecular Weight:20.0064
XLogP3:0.6
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:1
Exact Mass:20.006228194
Monoisotopic Mass:20.006228194
Heavy Atom Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Price Analysis
- Data: 2026-08-07
- Price: 16300.00Yuan/mt
- Change: 0
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Latest News on Hydrofluoric acid
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