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Potassium tetrafluoroborate

Chemical Properties Application Preparative Methods
Potassium tetrafluoroborate
Potassium tetrafluoroborate structure
CAS No.
14075-53-7
Chemical Name:
Potassium tetrafluoroborate
Synonyms
KBF4;Avogadrite;POTASSIUM FLUOBORATE;Potassium fluorobora;PotassiuM fluoroborat;POTASSIUM BOROFLUORIDE;POTASSIUM FLUOROBORATE;boronpotassiumfluoride;POTASSIUM BOROFULUORIDE;potassiumboridefluoride
CBNumber:
CB3143588
Molecular Formula:
BF4K
Formula Weight:
125.9
MOL File:
14075-53-7.mol

Potassium tetrafluoroborate Properties

Melting point:
530 °C(lit.)
Density 
2.505 g/mL at 25 °C(lit.)
refractive index 
1.3245
form 
Micro-Crystalline Powder
color 
White to light gray
Water Solubility 
4.4 g/L (20 ºC)
Sensitive 
Moisture Sensitive
Merck 
14,7686
Stability:
Stable. May decompose on exposure to water or moisture. Incompatible with metals.
CAS DataBase Reference
14075-53-7(CAS DataBase Reference)
EWG's Food Scores
1
FDA UNII
7D7045L690
NIST Chemistry Reference
Potassium tetrafluoroborate(14075-53-7)
EPA Substance Registry System
Borate(1-), tetrafluoro-, potassium (14075-53-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi,C
Risk Statements  36/37/38-34
Safety Statements  37/39-26-45-36/37/39-24/25
RIDADR  3260
WGK Germany  1
RTECS  ED2800000
Hazard Note  Corrosive/Moisture Sensitive
TSCA  Yes
HS Code  28269090
NFPA 704
1
2 0

Potassium tetrafluoroborate price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 278955 Potassium tetrafluoroborate 96% 14075-53-7 500g $50 2020-08-18 Buy
Sigma-Aldrich 455903 Potassium tetrafluoroborate ≥99.99% trace metals basis 14075-53-7 25g $125 2020-08-18 Buy
Alfa Aesar 011556 Potassium tetrafluoroborate, 99% min, typically >99.5% 14075-53-7 2kg $142 2020-06-24 Buy
Alfa Aesar 011556 Potassium tetrafluoroborate, 99% min, typically >99.5% 14075-53-7 500g $45 2020-06-24 Buy
Strem Chemicals 93-1951 Potassium tetrafluoroborate 14075-53-7 500g $54 2020-06-24 Buy

Potassium tetrafluoroborate Chemical Properties,Uses,Production

Chemical Properties

It appears as white powder or gelatinous crystals. It has hygroscopicity with bitter taste. It is slightly soluble in water and hot ethanol, insoluble in cold ethanol.

Application

Preparative Methods

Fluoroboric acid-potassium hydroxide method:
Hydrofluoric acid and boric acid are sent into the reactor at a ratio of 25: 6.2 (weight ratio); the temperature does not exceed 40 ℃. The reaction continues for 6h. The prepared fluoroboric acid is fed to a neutralization tank and neutralized with a 5 mol/L potassium hydroxide under stirring and cooling (until the methyl orange is discolored). Precipitated potassium fluoroborate crystal is subject to centrifugal separation, washing and drying, obtaining the finished product of potassium fluoroborate. its
4HF + H3BO3 → HBF4 + 3H2O
HBF4 + KOH → KBF4 + H2O
Fluoroboric acid/potassium carbonate neutralization method: under the stirring of the coating container, apply the saturated potassium carbonate solution for neutralizing fluoroboric acid to until the methyl orange is discolored. The precipitated potassium fluoroborate is subject to centrifugal separation, washing and drying, obtaining the finished product of potassium fluoroborate. Its reaction is:
2HBF4 + K2CO3 → 2KBF4 + H2O + CO2 ↑

Chemical Properties

white odourlesss crystalline powder

Uses

Has been proposed as a flux for soldering and brazing; filler in resin-bonded grinding wheels.

Hazard

Toxic by ingestion.

Safety Profile

Poison by intraperitoneal route. When heated to decomposition it emits very toxic fumes of F, K2O, and BOx. Used in sand casting of aluminum and magnesium, grinding, and in resinoid grindmg wheels. See also FLUORIDES and BORON COMPOUNDS.

Purification Methods

Crystallise it from H2O (solubility% (temperature): 0.3 (3o), 0.45 (20o), 1.4 (40o), 6.27 (100o), and dry it under vacuum. It is a non-hygroscopic salt. A 10% solution is transparent blue at 100o, green at 90o and yellow at 60o. [V.rlander et al. Chem Ber 65 535 1932, Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 223 1963.]

Potassium tetrafluoroborate Preparation Products And Raw materials

Raw materials

Preparation Products


Potassium tetrafluoroborate Suppliers

Global( 288)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21842 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22624 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 2754 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30039 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293
+86 0531-67809011 sales@sdzschem.com CHINA 2995 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28231 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 10126 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6371 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 35434 58
Shaanxi Dideu Medichem Co. Ltd
18192627656
+86-29-88380327 1012@dideu.com CHINA 3899 58

View Lastest Price from Potassium tetrafluoroborate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-05-25 Potassium fluoroborate
US $0.01-1.00 / KG 1KG 99% 50 tons Shaanxi Dideu Medichem Co. Ltd
2020-05-23 PotassiuM tetrafluoroborate
14075-53-7
US $0.01-1.00 / KG 1KG 99% 500 tons Shaanxi Dideu Medichem Co. Ltd
2018-12-20 Potassium tetrafluoroborate
14075-53-7
US $1.00 / kg 1kg 95%-99% 100kg career henan chemical co

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