Hydrofluoric acid supplier | CasNO.7664-39-3

Name
Hydrogen fluoride
EINECS 231-634-8
CAS No. 7664-39-3
Article Data1188
CAS DataBase
Density 1.15 g/mL at 25 °C(lit.)
Solubility soluble in water
Melting Point -35 °C
Formula HF
Boiling Point 19.538 °C at 760 mmHg
Molecular Weight 20.0063
Flash Point 112 °C
Transport Information UN 1790 8/PG 2
Appearance colourless gas with a pungent odour
Safety 26-36/37/39-45-7/9-36/37-28-36
Risk Codes 26/27/28-35-36/37/38-20/21/22
Molecular Structure
Hazard Symbols T, C. T+, Xn
Synonyms Rubigine;Fluorwaterstof;Hydrofluoric acid;Fluoric acid;Fluorowodor;hydrogen Fluoride;Hydrofluoride;fluorhydric acid;hydrogen fluorid;HYDROFLUORIC ACID;hydrofluoric;antisal2b;
PSA 0.00000
LogP 0.53270

Synthetic route

: rubidium fluoride

: sodium paratungstate

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In melt	100%
In melt	100%

: potassium fluoride

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
With oxalic acid In water byproducts: potassium oxalate; evapn. twice with satd. soln. of oxalic acid;	100%
With oxalic acid In water byproducts: potassium oxalate; evapn. twice with satd. soln. of oxalic acid;	100%
With carbon dioxide In water absorption of CO2 from air;
In water electrodialysis;
With CO2 In water absorption of CO2 from air;

: potassium fluoride

: sodium paratungstate

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In melt	100%
In melt	100%

: sodium paratungstate

: lithium fluoride

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In melt	100%
In melt	100%

: sodium paratungstate

: sodium fluoride

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In melt	100%
In melt	100%

: sodium paratungstate

: 13400-13-0
cesium fluoride

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In melt	100%
In melt	100%

: 368-39-8
triethyloxonium fluoroborate

: 82113-65-3
bis(trifluoromethanesulfonyl)amide

A: 945614-34-6
triethyloxonium bis(trifluoromethylsulfonyl)imide

B: 7664-39-3
hydrogen fluoride

C: 7637-07-2
boron trifluoride

Conditions

Conditions	Yield
at 75 - 80℃; for 3h;	A 100% B n/a C n/a

...Expand

: 54566-80-2
Pentafluoroethyl-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-amine

A: 2344-11-8
perfluoro(4-methyl-3-aza-2-pentene)

B: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
in presence of (CH3)3N, 25°C, 3 h;	A 99% B n/a
in presence of (CH3)3N, 25°C, 3 h;	A 99% B n/a

: 368-40-1
triethylsulfonium tetrafluoroborate

: 82113-65-3
bis(trifluoromethanesulfonyl)amide

A: 945614-34-6
triethyloxonium bis(trifluoromethylsulfonyl)imide

B: 7664-39-3
hydrogen fluoride

C: 7637-07-2
boron trifluoride

Conditions

Conditions	Yield
at 75 - 80℃; for 3h;	A 97.9% B n/a C n/a

...Expand

: 368-39-8
triethyloxonium fluoroborate

: H[perfluoroethyltrifluoroborate]

A: 945614-32-4
triethyloxonium tris(pentafluoroethyl)trifluorophosphate

B: 7664-39-3
hydrogen fluoride

C: 7637-07-2
boron trifluoride

Conditions

Conditions	Yield
at 75 - 80℃; for 3h; Product distribution / selectivity;	A 95.7% B n/a C n/a

...Expand

: 34451-17-7
N,N'-bis-(trifluoromethyl)tetrafluoroethylene-1,2-diamine

A: 17227-27-9
perfluoro(2,5-diaza-2,4-hexadiene)

B: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
70°C, 4 h, in presence of NaF;	A 95% B n/a
70°C, 4 h, in presence of NaF;	A 95% B n/a

: calcium fluoride

: 7664-93-9
sulfuric acid

: 7732-18-5
water

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
330 to 370°C, CaF2:H2SO4:H2O = 1:1.35:1.8, air as carrier gas, in a fluidized bed;	91%

...Expand

: calcium fluoride

: 86119-84-8, 7664-38-2
phosphoric acid

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
3h, fluorite concentrate (95% CaF2, 1-3% SiO2, 1% H2O);	90%

: ammonium hydrogen fluoride

: 7664-93-9
sulfuric acid

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In water 1.0 atm, 180°C;	88%
In water 1.0 atm, 170°C;	84%
150°C;

: 7782-41-4
fluorine

: 7704-34-9
sulfur

A: 5714-22-7
disulfur decafluoride

B: 13709-35-8
disulfur difluoride

C: 7783-60-0
sulfur tetrafluoride

D: 7664-39-3
hydrogen fluoride

E: 2551-62-4
sulfur(VI) hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: OF2; introduction of F2 into steel chamber, sulfur in compartments; detailed description of apparatus and handling given;; first passing through Ni (or Monel) tube (400°C); second Cu column (H2O sprayed); passed into steel column (containing carbon/Fe shavings; aq. NaOH sprayed); dried in column (containing solid NaOH, BaO or P2O5);;	A n/a B n/a C n/a D n/a E 87%

...Expand

: 84624-03-3
(C5Me5)Rh(PMe3)(H)2

: 434-90-2
decafluorobiphenyl

A: 194661-76-2
(C5Me5)Rh(PMe3)(4-perfluorobiphenyl)H

B: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In perdeuteriopyridine (N2); thermolysis (85°C) with 12 equiv of perfluorobiphenyl;	A 87% B n/a

...Expand

: 623575-99-5
tetracyanidoboronic acid

: 368-39-8
triethyloxonium fluoroborate

A: 945614-35-7
triethyloxonium tetracyanoborate

B: 7664-39-3
hydrogen fluoride

C: 7637-07-2
boron trifluoride

Conditions

Conditions	Yield
at 75 - 80℃; for 3h;	A 85.4% B n/a C n/a

...Expand

: 84624-03-3
(C5Me5)Rh(PMe3)(H)2

: 392-56-3
Hexafluorobenzene

A: 194661-74-0
(C5(CH3)5)Rh(P(CH3)3)(C6F5)H

B: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In perdeuteriopyridine (N2); thermolysis (85°C) with 12 equiv of C6F6;	A 81% B n/a

...Expand

: calcium fluoride

: 7732-18-5
water

: 112926-00-8, 7631-86-9
silica gel

A: wollastonite

B: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
1925 to 2760°C, hydrothermal process;	A n/a B 80%

...Expand

: 67-56-1
methanol

: 2561-57-1
chlorosulfonyldifluoroacetylfluoride

A: 18225-68-8
methyl 2,2-difluoro-2-(chlorosulfonyl)acetate

B: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In dichloromethane 20°C;	A 80% B n/a

...Expand

: 13709-36-9
xenon difluoride

: 14984-73-7
bis(fluorosulfonyl)amide

A: 53719-78-1
fluoro[imidobis(sulfuryl fluoride)]xenon(II)

B: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In Dichlorodifluoromethane 3 d at 0°C, 1:1 molar ratio; The reactor was pumped for 3 h at 0°C to remove the byproducts, elem. anal.;	A 80% B n/a

...Expand

: 64-17-5
ethanol

: 2561-57-1
chlorosulfonyldifluoroacetylfluoride

A: 18328-81-9
Chlorsulfonyl-difluoressigsaeure-ethylester

B: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In dichloromethane 20°C;	A 75% B n/a

...Expand

: 16069-36-6
perhydrodibenzo-18-crown-6

: cis-anti-cis-dicyclohexano-18-crown-6 boron trifluoride monohydrate complex

: 7732-18-5
water

A: C20H36O6*H3O(1+)*BF4(1-)=C20H36O6*H3O(1+)*BF4(1-)

B: 7664-39-3
hydrogen fluoride

C: 11113-50-1
boric acid

Conditions

Conditions	Yield
In methanol standing at 20°C to solvent evapn.; residue dilution with acetone/hexane, soln. partial evapn., upper layer decanting, residue washing with hot hexane, crystn. from ethyl acetate;	A 71% B n/a C n/a

...Expand

: 136948-87-3
mesityltrifluorogermane

A: 96481-36-6
difluorodimesitylgermane

B: 136948-90-8
(GeF2CH2C6H2(CH3)2)2

C: 7664-39-3
hydrogen fluoride

D: 7783-58-6
germanium tetrafluoride

Conditions

Conditions	Yield
In benzene byproducts: C6H3(CH3)3; (N2); soln. of Ge-compd. in anhyd. benzene kept at 80°C (12 h);;	A 30% B 70% C n/a D n/a

...Expand

: 145327-75-9
Bis(ethylthio)(1,2,2,2-tetrafluoroethylidene)methane

: 513-81-5
2,3-dimethyl-buta-1,3-diene

A: 1400258-81-2
(2-trifluoromethyl-4,5-dimethylphenyl)ethylsulfide

B: 7664-39-3
hydrogen fluoride

C: 75-08-1
ethanethiol

Conditions

Conditions	Yield
In 1-methyl-pyrrolidin-2-one at 190℃; Diels-Alder Cycloaddition;	A 63% B n/a C n/a

...Expand

: calcium fluoride

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
With sulfuric acid byproducts: PbF2, SiF4, HSO3F; concd. H2SO4; water content 5 %, water content is higher if diluted H2SO4 is used; 185 °C, 4 h; H2SO3 also formed;;	60%
With H2SO4 byproducts: PbF2, SiF4, HSO3F; concd. H2SO4; water content 5 %, water content is higher if diluted H2SO4 is used; 185 °C, 4 h; H2SO3 also formed;;	60%
With calcium sulfate; sulfuric acid

: cryolite

: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
With sulfuric acid byproducts: PbF2, SiF4, HSO3F; concd. H2SO4; water content 5 %, water content is higher if diluted H2SO4 is used; 185 °C, 4 h; H2SO3 also formed;;	60%
With H2SO4 byproducts: PbF2, SiF4, HSO3F; concd. H2SO4; water content 5 %, water content is higher if diluted H2SO4 is used; 185 °C, 4 h; H2SO3 also formed;;	60%
With sulfuric acid heating in Pb- or Pt- containers; concd. H2SO4;;

: 145327-77-1
Bis(ethylthio)(1,2,2,3,3,3-hexafluoropropylidene)methane

: 513-81-5
2,3-dimethyl-buta-1,3-diene

A: 1400258-82-3
(2-pentafluoroethyl-4,5-dimethylphenyl)ethylsulfide

B: 7664-39-3
hydrogen fluoride

C: 75-08-1
ethanethiol

Conditions

Conditions	Yield
In 1-methyl-pyrrolidin-2-one at 190℃; for 40h; Diels-Alder Cycloaddition;	A 60% B n/a C n/a

...Expand

: calcium fluoride

: 7732-18-5
water

A: 7664-39-3
hydrogen fluoride

B: calcium oxide

Conditions

Conditions	Yield
In neat (no solvent) passing a slow water-steam-stream over heated CaF2 in a platinum-tube gives an equilibrium; messure of Vol-% HF at different temperatures;;	A 52.9% B n/a
In neat (no solvent) passing a slow water-steam-stream over heated CaF2 in a platinum-tube gives an equilibrium; messure of Vol-% HF at different temperatures;;	A 52.9% B n/a

...Expand

: 39687-62-2
trans-WOF4CH3CN

: 7732-18-5
water

A: 32573-14-1
WOF5(1-)

: W2O2F8(OH)(1-)

: 60670-09-9
mer-WOF3(OH)CH3CN

: W2O2F9(1-)

E: 7664-39-3
hydrogen fluoride

Conditions

Conditions	Yield
In water; acetonitrile byproducts: trans-WOF4(H2O); addn. of 3.5% H2O as a 20% soln. of water in CH3CN to a soln. of trans-XOF4(CH3CN) in acetonitrile;; not isolated; detected by 19F-NMR-spectroscopy;;	A 2.5% B 7.5% C 50% D 5% E 30%

...Expand

: 7631-99-4
sodium nitrate

: 7664-39-3
hydrogen fluoride

: sodium fluoride

Conditions

Conditions	Yield
20 min, 250 °C;;	100%
20 min, 250 °C;;	100%

: 940-71-6
2,2,4,4,6,6-hexachloro-1,3,5-triaza-2,4,6-triphosphorine

: 7664-39-3
hydrogen fluoride

A: 7647-01-0
hydrogenchloride

B: ammonium hexafluorophosphate

Conditions

Conditions	Yield
In not given react. with HF;;	A n/a B 100%

...Expand

: 19184-41-9
osmium pentafluoride oxide

: 7664-39-3
hydrogen fluoride

: 38448-58-7
osmium tetrafluoride oxide

Conditions

Conditions	Yield
Dry HF and OsOF5 were condensed into a reaction vessel. The reactor was heated to 293 K.; HF and the excess of OsOF5 were driven off by heating the reaction products to constant weight. Crystalline ReOF4 was separated from the green solution. Elem. anal.;	100%

: 23377-53-9
rhenium oxide pentafluoride

: 7664-39-3
hydrogen fluoride

: 17026-29-8, 52152-11-1
rhenium oxotetrafluoride

Conditions

Conditions	Yield
Dry HF and ReOF5 were condensed into a reaction vessel. The reactor was then heated to 293 K.; HF and the excess of ReOF5 were driven off by heating the reaction products to constant weight. Crystalline ReOF4 was separated from the blue solution. Elem. anal.;	100%

: 7664-39-3
hydrogen fluoride

: 7721-01-9
tantalum pentachloride

: lithium fluoride

: LiTaF6

Conditions

Conditions	Yield
In neat (no solvent) heating (HF atm., 200°C, 2 h); elem. anal.;	100%

...Expand

: [Mo2(η5-C5Me5)2(μ-S)(μ-SMe)2(CO)2]

: 7664-39-3
hydrogen fluoride

: [((CH3)5C5)Mo(CO)(SCH3)]2(SH)(1+)*Br(1-)=[[((CH3)5C5)Mo(CO)(SCH3)]2(SH)]Br

Conditions

Conditions	Yield
In dichloromethane N2 or Ar-atmosphere; pptn. on concg. and Et2O addn., filtering, washing (pentane);	100%

: bis(tetra(n-butyl)ammonium)-di(nitro(N))phthalocyaninato(2-)ruthenate(II)

: 7664-39-3
hydrogen fluoride

: [RuF(C6H4N2C2)4(NO)]

Conditions

Conditions	Yield
In tetrahydrofuran; hydrogen fluoride byproducts: NO2(1-); addn. of conc. aq. HX, boiling (15 min); cooling, crystn., washing (H2O), drying (vac.);	100%

: 62792-13-6
indium(I) tetrafluoroborate

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 877238-63-6
indium(I) hexafluoroantimonate

Conditions

Conditions	Yield
In hydrogen fluoride HF (liquid); equimol., HF condenced onto reagent at 77 K, alowed to warm to room temp., left for 1 d; volatiles removed (vac.); elem. anal.;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 75-05-8
acetonitrile

: C2H3N*F6Sb(1-)*H(1+)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride at -196 - 20℃; Sealed tube; Stage #2: acetonitrile at -196 - 20℃; for 0.5h; Sealed tube; Inert atmosphere;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 75-05-8
acetonitrile

: MeCNHSb2F11

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride at -196 - 20℃; Sealed tube; Stage #2: acetonitrile at -196 - 20℃; for 0.5h; Sealed tube; Inert atmosphere;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 107-12-0
propiononitrile

: C3H5N*F6Sb(1-)*H(1+)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride at -196 - 20℃; Sealed tube; Stage #2: propiononitrile at -196 - 20℃; for 0.5h; Sealed tube; Inert atmosphere;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 107-12-0
propiononitrile

: C3H5N*F11Sb2(1-)*H(1+)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride at -196 - 20℃; Sealed tube; Stage #2: propiononitrile at -196 - 20℃; for 0.5h; Sealed tube; Inert atmosphere;	100%

...Expand

: 109-74-0
propyl cyanide

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: C4H7N*F6Sb(1-)*H(1+)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride at -196 - 20℃; Sealed tube; Stage #2: propyl cyanide at -196 - 20℃; for 0.5h; Sealed tube; Inert atmosphere;	100%

...Expand

: 109-74-0
propyl cyanide

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: C4H7N*F11Sb2(1-)*H(1+)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride at -196 - 20℃; Sealed tube; Stage #2: propyl cyanide at -196 - 20℃; for 0.5h; Sealed tube; Inert atmosphere;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 100-47-0
benzonitrile

: C7H5N*F6Sb(1-)*H(1+)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride at -196 - 20℃; Sealed tube; Stage #2: benzonitrile at -196 - 20℃; for 0.5h; Sealed tube; Inert atmosphere;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 100-47-0
benzonitrile

: C7H5N*F11Sb2(1-)*H(1+)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride at -196 - 20℃; Sealed tube; Stage #2: benzonitrile at -196 - 20℃; for 0.5h; Sealed tube; Inert atmosphere;	100%

...Expand

: 102-54-5
ferrocene

: 7664-39-3
hydrogen fluoride

: 7647-19-0, 874483-74-6
phosphorus pentafluoride

: C10H11Fe(1+)*F6P(1-)

Conditions

Conditions	Yield
at -196 - 20℃; Sealed tube;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 109-77-3
malononitrile

: C3H3N2(1+)*F6Sb(1-)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride Schlenk technique; Inert atmosphere; Cooling; Stage #2: malononitrile for 0.0833333h; Schlenk technique; Inert atmosphere; Cooling;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7783-70-2
antimony pentafluoride

: 109-77-3
malononitrile

: C3H4N2(2+)*2F6Sb(1-)

Conditions

Conditions	Yield
Stage #1: hydrogen fluoride; antimony pentafluoride Schlenk technique; Inert atmosphere; Cooling; Stage #2: malononitrile for 0.0833333h; Schlenk technique; Inert atmosphere; Cooling;	100%

...Expand

: 7664-39-3
hydrogen fluoride

: 7778-42-9
sulphamoyl chloride

: 7783-58-6
germanium tetrafluoride

: 2ClH2NO2S*2H(1+)*F6Ge(2-)

Conditions

Conditions	Yield
at -196 - -40℃; for 72h; Schlenk technique;	100%

...Expand

Hydrofluoric acid Consensus Reports

EPA Extremely Hazardous Substances List. Community Right-To-Know List. EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.

Hydrofluoric acid Standards and Recommendations

OSHA PEL: TWA 3 ppm; STEL 6 ppm (F)
ACGIH TLV: CL 3 ppm (F); BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.
DFG MAK: 3 ppm (2.5 mg/m³); BAT 7.0 mg/g creatinine in urine at end of shift
NIOSH REL: (HF) TWA 2.5 mg(F)/m³; CL 5.0 mg(F)/m³/15M
DOT Classification: 8; Label: Corrosive, Poison

Hydrofluoric acid Analytical Methods

For occupational chemical analysis use NIOSH: Fluorides, 7902; Acids, Inorganic, 7903.

Hydrofluoric acid Specification

Hydrofluoric acid (CAS NO.7664-39-3) is a chemical compound with the formula HF. It is the principal industrial source of fluorine, often in the aqueous form as hydrofluoric acid. The hot, gaseous it is either absorbed in water or liquefied; refrigeration is employed to obtain the anhydrous product needed for fluorocarbon manufacture and other uses. Although it is corrosive, concentrations of 60% and above can be handled in steel at lower temperatures; load, carbon and special alloys are also used in the process equipment.It is A solution of hydrogen fluoride in water. It is a colorless fuming liquid which can cause painful burns.

Physical properties about Hydrofluoric acid are:
(1)mp: -35°C; (2)bp: 105°C; (3)density: 1.15 g/mL at 25 °C(lit.); (4)vapor density: 1.27 (vs air); (5)vapor pressure: 25 mm Hg ( 20 °C); (6)Fp: 112°C; (7)Water Solubility: soluble; (8)Sensitive:Hygroscopic; (9)Merck:14,479

Preparation of Hydrofluoric acid:
Hydrofluoric acid is produced by treatment of the mineral fluorite (CaF₂) with concentrated sulfuric acid. When combined at 265 °C, these two substances react to produce hydrogen fluoride and calcium sulfate according to the following chemical equation:
CaF₂ + H₂SO₄→ 2 HF + CaSO₄Uses of Hydrofluoric acid:
Hydrofluoric acid is the precursor to many important compounds including pharmaceuticals and polymers (e.g. Teflon). HF is widely used in the petrochemical industry and a component of many superacids. HF 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 its odour is particularly penetrating, which can damage the lungs. Hydrofluoric acid is used to prepare fluorocarbons and one:third of the total goes to the aluminum industry, where synthetic cryolite, sodium aluminum fluoride, is a major constituent of the electrolyte. It is also consumed in the melting and refining of secondary aluminum. Other uses of hydrofluoric acid are found in the metals and petroleum industries.

When you are using Hydrofluoric acid, please be cautious about it as the following:
1.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice;
2.Wear suitable protective clothing, gloves and eye/face protection;
3.In case of accident or if you feel unwell, seek medical advice immediately (show label where possible);

You can still convert the following datas into molecular structure:
(1)InChI=1S/FH/h1H;
(2)InChIKey=KRHYYFGTRYWZRS-UHFFFAOYSA-N;
(3)SmilesF;

The toxicity data of Hydrofluoric acid is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
frog	LDLo	subcutaneous	112mg/kg (112mg/kg)		Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 124, Pg. 133, 1937.
guinea pig	LC50	inhalation	4327ppm/15M (4327ppm)	SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION	American Industrial Hygiene Association Journal. Vol. 24, Pg. 253, 1963.
human	LCLo	inhalation	50ppm/30M (50ppm)		"Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 318, 1969.
man	TCLo	inhalation	100mg/m3/1M (100mg/m3)	LUNGS, THORAX, OR RESPIRATION: COUGH SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION SENSE ORGANS AND SPECIAL SENSES: CONJUNCTIVE IRRITATION: EYE	Journal of Industrial Hygiene. Vol. 16, Pg. 129, 1934.
man	TDLo	oral	143mg/kg (143mg/kg)	VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION CARDIAC: ARRHYTHMIAS (INCLUDING CHANGES IN CONDUCTION) KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"	Journal of Toxicology, Clinical Toxicology. Vol. 35, Pg. 307, 1997.
monkey	LC50	inhalation	1774ppm/1H (1774ppm)	LUNGS, THORAX, OR RESPIRATION: CYANOSIS GASTROINTESTINAL: OTHER CHANGES BEHAVIORAL: COMA	Aerospace Medical Research Laboratory Report. Vol. TR-70-77, Pg. 1970,
mouse	LC50	inhalation	342ppm/1H (342ppm)	LUNGS, THORAX, OR RESPIRATION: DYSPNEA SENSE ORGANS AND SPECIAL SENSES: CORNEAL DAMAGE: EYE SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE	Journal of Combustion Toxicology. Vol. 3, Pg. 61, 1976.
mouse	LDLo	skin	500mg/kg (500mg/kg)	BEHAVIORAL: TREMOR PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION	Sangyo Igaku. Japanese Journal of Industrial Health. Vol. 17, Pg. 281, 1975.
rabbit	LCLo	inhalation	260mg/m3/7H (260mg/m3)		AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 2, Pg. 716, 1950.
rat	LC50	inhalation	1276ppm/1H (1276ppm)	GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY) SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE	American Industrial Hygiene Association Journal. Vol. 33, Pg. 661, 1972.
rat	LDLo	intraperitoneal	25mg/kg (25mg/kg)		Toxicology and Applied Pharmacology. Vol. 13, Pg. 76, 1968.

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