14075-53-7 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 14075-53-7 differently. You can refer to the following data:
1. 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.
2. white odourlesss crystalline powder
Application
Used as the abrasive material of the thermosetting resin grinding wheel, the raw material of boron alloy, the fluxing agent of heat welding and brazing; it can also be used as the components of low chromic anhydride chrome and lead-tin alloy electrolyte.
Used as analytical reagents and fluxes, also for the production of boron trifluoride, abrasive materials for the aluminum and magnesium casting, electrochemical engineering and chemical testing.
Used as the fluxing agent of heat flux and brazing, and the raw material for the production of boron alloy using aluminum and magnesium casting; it acts as the filler in the heavy wheel using resin as abrasive adhesive. In the welding and fusion of silver, gold, stainless steel, it can clean up the dross of light metal. It is a raw material for the manufacture of boron trifluoride and other fluorine salts. Also used in electrochemical processes and reagents.
Used as fluxing agent; also used for the metallurgical industry and for the preparation of boron trifluoride as well as the raw materials of other fluorine salt.
Used as the resin finishing agents for textile printing and dyeing, improving agent of metal particle size and refining fluxes and the casting sand granules of the aluminum and magnesium alloy.
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 ↑
Uses
Different sources of media describe the Uses of 14075-53-7 differently. You can refer to the following data:
1. Has been proposed as a flux for soldering and brazing; filler in resin-bonded grinding wheels.
2. Potassium tetrafluoroborate is used as an active filler in the preparation of resin-bonded abrasives. It is also used for extraction, refining and processing of metals in the chemical industry. It finds application as additive in alloying industry and welding agent. Further, it is used in the production of fluxing agents for brazing and soldering.
Hazard
Toxic by ingestion.
Flammability and Explosibility
Notclassified
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.]
Check Digit Verification of cas no
The CAS Registry Mumber 14075-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,0,7 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 14075-53:
(7*1)+(6*4)+(5*0)+(4*7)+(3*5)+(2*5)+(1*3)=87
87 % 10 = 7
So 14075-53-7 is a valid CAS Registry Number.
InChI:InChI=1/BFO2.2K/c2-1(3)4;;/q-2;2*+1
14075-53-7Relevant articles and documents
-
, p. 353 - 362 (1988)
-
The reactivity of potassium polyfluoroaryl-, polyfluoroalkenyl-, and perfluoroalkyltrifluoroborates and their hydrocarbon analogues towards acids of different strength: A systematic study of the hydrodeboration
Bardin,Idemskaya,Frohn
, p. 883 - 890 (2002)
The hydrodeboration of the (fluoroorgano)trifluoroborates K [RFBF3] [RF = C6F5, XCF=CF (X - F, cis- and trans-Cl, -C3F7O, cis-C2F5, trans-C4F9, -C4H9) and C6F13]and of the organotrifluoroborates K [RBF3] (R = C6H5, cis- and trans-C4H9CH=CH, C4H9 and C8H17) with CH3CO2H (100%), CF3CO2H (100 %), aqueous HF and anhydrous HF was investigated. In the alkenyltrifluoroborates K [R′=CFCFBF3] the formal replacement of BF3 by a proton occurred stereospecifically under retention of the configuration. The 19F NMR spectra of K [RFBF3] in acids indicate strong interactions of the BF3 group with protons or acid molecules.
Isaeva, L. S.,Drogunova, G. I.,Peregudov, A. S.,Kravtsov, D. N.
, (1988)
Bricker, Jeffery C.,Nagel, Colleen C.,Shore, Sneldon G.
, p. 1444 - 1445 (1982)
Thermoanalytical and preparative investigations of the decomposition of potassium perfluoroorganyl(fluoro)borate salts, K[RFBF3] (RF = perfluoroalkyl, -alkenyl, -alkynyl, and -aryl groups) and K[(RF)2BF2] (RF = C 6F5 and C6F13)
Bardin, Vadim V.,Shundrina, Inna K.,Frohn, Hermann-Josef
, p. 73 - 78 (2014/01/06)
Potassium perfluoroalkenyl(fluoro)borates, K[RFBF3], (RF = CF2C(CF3), cis-CF3CFCF, and cis-C6F13CFCF) decomposed at 208-225 C (Tmax, dTG). The K[RFBF3] salts (RF = C 3F7, C6F13, trans-CF 3CFCF, and trans-C4F9CFCF) decomposed at 273-312 C (Tmax, dTG). Both groups of salts formed volatile polyfluoroorganics and K[BF4] as solid residue. The preparative thermolysis of selected prototypical salts K[RFBF3] showed that the polyfluoroorganics consisted of a mixture of internal perfluorohexenes, C6F12, and 1-H-tridecafluorohexane, C6F13H, in case of K[C6F13BF 3], and of perfluorooctynes, C8F14, and cis-C6F13CFCFH in case of K[cis-C6F 13CFCFBF3]. The salts K[(C6F5) 2BF2] and K[RFBF3] (RF = CF3CC, CF3CFCFCC, C6F5CC, C 6F5, 2,3,5,6-C5NF4) decomposed in the temperature range 249-337 C (Tmax, dTG) and mainly resulted in non-volatile polyfluoroorganics besides K[BF4]. The reaction path of the thermolysis of perfluoroalkyl-, perfluoroalkenyl-, and perfluorophenyl(fluoro)borates is discussed and compared with that of perfluorocarboxylates.
