Back to ChemicalBook Home--->CAS DataBase List--->7789-23-3

7789-23-3

7789-23-3 Structure

7789-23-3 Structure
IdentificationMore
[Name]

Potassium fluoride
[CAS]

7789-23-3
[Synonyms]

POTASSIUM FLUORIDE
POTASSIUM FLUORIDE IN D2O NMR REFERENCE STANDARD
POTASSIUM FLUORIDE ON CELITE(R)
Fluorure de potassium
fluoruredepotassium
KF
Potassium fluoride (KF)
Potassium fluorure
potassiumfluoride(kf)
Potassiumfluoride,anhydrous
potassiumfluorure
Potassium fluoride 99%
potassium fluoride spray dried
Potassium flroride anhydrous
POTASSIUM FLUORIDE PURIFIED
POTASSIUM FLUORIDE SPRAY-DRIED 99%
POTASSIUM FLUORIDE REAGENT GRADE 98%
POTASSIUM FLUORIDE, ANHYDROUS, POWDER, 9 9.99+%
POTASSIUM FLUORIDE, 99+%, A.C.S. REAGENT
POTASSIUM FLUORIDE, 99.99% METALS BASIS
[EINECS(EC#)]

232-151-5
[Molecular Formula]

FK
[MDL Number]

MFCD00011398
[Molecular Weight]

58.1
[MOL File]

7789-23-3.mol
Chemical PropertiesBack Directory
[Appearance]

White solid
[mp ]

858 °C(lit.)
[bp ]

1505 °C
[density ]

2.48
[refractive index ]

1.363
[Fp ]

1505°C
[storage temp. ]

Store at RT.
[solubility ]

H2O: 1 M at 20 °C, clear, colorless
[form ]

spray-dried
[Stability:]

Stable. Protect from moisture. Incompatible with strong acids, strong bases.
[Water Solubility ]

92.3 g/100 mL (18 ºC)
[Sensitive ]

Hygroscopic
[Merck ]

14,7632
[CAS DataBase Reference]

7789-23-3(CAS DataBase Reference)
[NIST Chemistry Reference]

Potassium fluoride(7789-23-3)
[EPA Substance Registry System]

7789-23-3(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

T
[Risk Statements ]

R25:Toxic if swallowed.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
[Safety Statements ]

S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
[RIDADR ]

UN 1812 6.1/PG 3
[WGK Germany ]

3
[RTECS ]

TT0700000
[F ]

3
[Hazard Note ]

Harmful
[HazardClass ]

6.1
[PackingGroup ]

III
[HS Code ]

28261990
[Hazardous Substances Data]

7789-23-3(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Potassium carbonate-->Potassium hydroxide -->Hydrofluoric acid-->(2S,5R,6R)-6-[(R)-2-Amino-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid-->Hexafluorosilicic acid
[Preparation Products]

Potassium hydroxide -->4-Fluoroaniline-->Methyl chloroacetate-->(2S,5R,6R)-6-[(R)-2-Amino-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid-->3-MORPHOLINOPHENYLBORONIC ACID PINACOL ESTER-->6-(TRIFLUOROMETHYL)PYRIDINE-3-CARBOXALDEHYDE-->1-[6-(Trifluoromethyl)pyridin-2-yl]piperazine-->4-AMINO-2-CHLOROBENZOTRIFLUORIDE-->2-CHLORO-4-NITROBENZOTRIFLUORIDE-->5-FLUORO-1H-PYRROLO[3,2-B] PYRIDINE-->2-FLUORO-3-IODO-5-NITROPYRIDINE-->1,2,3-Trifluoro-4-nitrobenzene-->4-(Trifluoromethyl)nicotinic acid-->Hexaflumuron-->2-Chloro-6-trifluoromethylnicotinic acid-->2-FLUORO-3-NITRO-5-BROMO PYRIDINE-->3-Chloro-4-fluoroaniline-->2,4-Difluoroaniline-->2,6-Difluorobenzamide-->2,4-DIAMINO-6-FLUOROPYRIMIDINE-->3-AMINO-2-FLUORO-4-PICOLINE-->2-Fluoroaniline-->2,6-Difluorobenzonitrile-->4-AMINO-2,6-DIFLUOROPYRIMIDINE-->2-AMINO-4,6-DIFLUOROPYRIMIDINE-->2-Trifluoromethyl-5-bromopyridine-->4-FLUORO-2-NITROBENZONITRILE-->Fluoro-N,N,N',N'-tetramethylformamidinium hexafluorophosphate-->2-Fluorophenol-->2-Fluoroethyl bromide-->Methyl fluoroacetate
Hazard InformationBack Directory
[General Description]

White powder or crystals with a sharp saline taste. Shipped as a solid or an aqueous solution. Strongly irritates skin, eyes and mucous membranes. Toxic by ingestion. Used in insecticides, solder flux and etching glass.
[Reactivity Profile]

POTASSIUM FLUORIDE(7789-23-3) reacts with acids to evolve corrosive and toxic hydrogen fluoride. Aqueous solutions corrode glass and consequently are prepared and stored in polyethylene containers. The pure solid may be stored in glass containers. Reacts violently with (Pt + BrF3). [NTP 1992].
[Air & Water Reactions]

Deliquescent. Water soluble.
[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.
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

potassium fluoride(7789-23-3).msds
Questions And AnswerBack Directory
[Physical and Chemical Properties]

Potassium fluoride is basis raw material of manufacturing fluoride, chemical formula is KF. Molecular weight is 58.10. It is colorless cubic crystal or white powder. It is poisonous! It is deliquescent. Taste is salty. Specific gravity is 2.48. Melting point is 858℃. Boiling point is 1505℃. It is soluble in water. It was dissolved in hydrofluoric acid and ammonia. It is insoluble in ethanol, acetone. Aqueous solution is alkaline and it can corrode glass and porcelain. It can cause irritation for human skin, mucous membrane and eye. When belows 40.2℃, it can crystallize in an aqueous solution to give dihydrate KF·2H2O, which is monoclinic, it is self-dissolved crystalline water at 41℃. It can be obtained by the thermal decomposition of potassium hydrogen fluoride or potassium carbonate (or potassium hydroxide) and hydrofluoric acid (40% or anhydrous). It can be used for glass engraving, food preservation, it can be also used as welding flux, fluoride, pesticides,etc.

Figure 1 the structural formula of potassium fluoride.
Questions and Answers (Q&A)Back Directory
[Uses]

Industry Application Role/benefit
Organic synthesis Preparation of various organic fluoride Fluorinating agent/replaces other halide ions like chlorine, bromine etc.
Chemical manufacture Manufacture of polyurethanes and alkyl benzenes Catalyst/promote the reaction rate
Manufacture of pesticides and insecticides Fluorinating agent; ingredient
Manufacture of potassium bifluoride Raw material
Metallurgy Soldering Soldering fluxes/help to remove oxide film
Tin plating Plating composition/source of fluoride
Glass Etching of glass Glass etching composition; source of fluoride
Others Food and wood preservative Source of fluoride
Absorption of hf and moisture Adsorbent/anhydrous potassium fluoride has hydroscopicity
Complexometric titration of tantalum Masking agent
Extraction of tantalum from ore Precipitator/reacts with fluorotantalic acid to precipitate potassium fluorotantalate
 
Spectrum DetailBack Directory
[Spectrum Detail]

Potassium fluoride(7789-23-3)IR1
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Potassium fluoride, anhydrous, extra pure, 99%(7789-23-3)
[Alfa Aesar]

Potassium fluoride, anhydrous, 99%(7789-23-3)
[Sigma Aldrich]

7789-23-3(sigmaaldrich)
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