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Potassium fluoride

Chemical Properties Physical and Chemical Properties Uses Preparation
Potassium fluoride
Potassium fluoride structure
CAS No.
7789-23-3
Chemical Name:
Potassium fluoride
Synonyms
KF;SDKF;DG 18;Potassium fL;Kaliumfluorid;MANNITOL SALT;SUCROSE, MOLECUL;potassiumfluorure;POTASSIUM FLUORIDE;Potassium fluorure
CBNumber:
CB4237549
Molecular Formula:
FK
Formula Weight:
58.1
MOL File:
7789-23-3.mol

Potassium fluoride Properties

Melting point:
858 °C (lit.)
Boiling point:
1505 °C
Density 
2.48
vapor density 
2 (vs air)
vapor pressure 
1.3 hPa (885 °C)
refractive index 
1.363
Flash point:
1505°C
storage temp. 
Store at +5°C to +30°C.
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
spray-dried
color 
White
Specific Gravity
2.481
Odor
Odorless
PH
7.0-8.5 (25℃, 1M in H2O)
Water Solubility 
92.3 g/100 mL (18 ºC)
Sensitive 
Hygroscopic
λmax
λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01
Merck 
14,7632
BRN 
3902818
Stability:
Stable. Protect from moisture. Incompatible with strong acids, strong bases.
InChIKey
NROKBHXJSPEDAR-UHFFFAOYSA-M
CAS DataBase Reference
7789-23-3(CAS DataBase Reference)
EWG's Food Scores
1-3
FDA UNII
9082WG1G3F
NIST Chemistry Reference
Potassium fluoride(7789-23-3)
EPA Substance Registry System
Potassium fluoride (7789-23-3)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS06
Signal word  Danger
Hazard statements  H301+H311+H331-H301-H311-H331
Precautionary statements  P280h-P301+P310a-P304+P340-P405-P501a-P261-P280-P302+P352+P312-P304+P340+P312-P403+P233-P301+P310-P311
Hazard Codes  T
Risk Statements  25-23/24/25
Safety Statements  45-26-36/37
RIDADR  UN 1812 6.1/PG 3
WGK Germany  3
RTECS  TT0700000
3
Hazard Note  Harmful
TSCA  Yes
HS Code  2826 19 90
HazardClass  6.1
PackingGroup  III
Toxicity MLD in guinea pigs (mg/kg): 250 orally, 350 s.c.; in frogs (mg/kg): 375 s.c. (Simonin)
NFPA 704
1
3 0

Potassium fluoride price More Price(38)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 1.04994 Potassium fluoride for analysis EMSURE? ACS 7789-23-3 250 g $155.4 2021-03-22 Buy
Sigma-Aldrich 229814 Potassium fluoride ≥99.97% trace metals basis 7789-23-3 10g $118 2021-03-22 Buy
Sigma-Aldrich 01132 Potassium fluoride purified, ≥99% 7789-23-3 2.5kg $300 2018-11-22 Buy
Sigma-Aldrich 1.04994 Potassium fluoride for analysis EMSURE? ACS 7789-23-3 1 kg $384.8 2021-03-22 Buy
Sigma-Aldrich PX1467 Potassium Fluoride Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS 7789-23-3 1 kg $518 2021-03-22 Buy

Potassium fluoride Chemical Properties,Uses,Production

Chemical Properties

Potassium fluoride, KF, is a colorless, deliquescent crystalline solid that has a melting point of 846 °C(1550 °F). Potassium fluoride has a salty taste and is poisonous. It is soluble in water,but insoluble in alcohol. Potassium fluoride is used in etching glass,preservatives, and insecticides.

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.

Uses

Anhydrous Potassium fluoride is used in organic synthesis as a catalyst for various reactions, or to introduce fluorine into organic molecules. For example, fluoro compounds can be prepared by replacing labile chlorine atoms by fluorine atoms, as in the manufacture of sodium fluoroacetate, a rat poison. The nucleophilic strength of F− and the solubility of KF in aprotic organic solvents may be improved by using crown ethers. The “naked” fluoride ion obtained is an efficient fluorinating agent.

Preparation

Potassium fluoride is prepared by reacting potassium carbonate (or KOH) with aqueous hydrofluoric acid. Care is necessary in handling the anhydrous salt, to prevent its hydration.

Chemical Properties

White, crystalline, deliquescent powder; sharp saline taste.Soluble in water and hydrogen fluoride, insoluble in alcohol.

Chemical Properties

Potassium fluoride is a white crystalline solid.

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
 

Reactivity Profile

Potassium fluoride 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].

Hazard

Toxic by ingestion and inhalation, 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.

Safety Profile

Poison by ingestion and intraperitoneal routes. Moderately toxic by subcutaneous route. Experimental teratogenic effects. A corrosive irritant to the eyes, skin, and mucous membranes. Mutation data reported. A very reactive material. When heated to decomposition it emits toxic fumes of K2O and F-. Used in etchmg glass, as a presewative, as an insecticide, and in organic synthesis. See also FLUORIDES and HYDROFLUORIC ACID.

Potential Exposure

Potassium fluoride is used in etching glass; as a preservative and insecticide.

Shipping

UN1812 Potassium fluoride, solid, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

Incompatible with strong acids; reacts releasing hydrogen fluoride. Aqueous solutions corrode glass and consequently are prepared and stored in polyeth- ylene containers. The pure solid may be stored in glass containers. Reacts violently with (Pt 1 BrF 3 )

Potassium fluoride Preparation Products And Raw materials

Raw materials

Preparation Products


Potassium fluoride Suppliers

Global( 324)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8910 55
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 ivan@atkchemical.com CHINA 26762 60
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29954 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
sales3@crovellbio.com China 5930 58
Chongqing Chemdad Co.,Ltd
+86-19923101450
sales@chemdad.com CHINA 4000 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6369 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58

View Lastest Price from Potassium fluoride manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-13 Potassium fluoride
7789-23-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-10 Potassium fluoride
7789-23-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-02 Potassium fluoride
7789-23-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

Potassium fluoride Spectrum


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