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Tetrafluoroboric acid
TETRAFLUOROBORIC ACID · HBF4 · FLUOBORIC ACID · HYDROFLUOROBORIC ACID · HYDROGEN TETRAFLUOROBORATE · tetrafluoroboric acid solution · fluoroboric · Fluoroboric acid 50%
Identifikatoren & physikalische Daten
| CAS No. | 16872-11-0 |
|---|---|
| Summenformel | BF4.H |
| Durchschnittliche Molmasse | 87,82 g/mol |
| Monoisotopische Masse | 88,01074331 g/mol |
| SMILES | F[B-](F)(F)F.[H+] |
| InChIKey | ODGCEQLVLXJUCC-UHFFFAOYSA-O |
| PubChem CID | 28118 |
| ChEMBL | CHEMBL3186904 |
| ChEBI | CHEBI:38902 |
| EC No. | 240-898-3 |
| DTXSID | DTXSID8029739 |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 0 |
|---|---|
| H-Brücken-Donoren | 1 |
| H-Brücken-Akzeptoren | 5 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 5 |
| Formalladung | 0 |
| Komplexität | 19,1 |
| Stoffklassen | Toxic Gases & Vapors -> Acids, InorganicCorrosives |
| Dichte | Approximately 1.8 g/cu cmRelative density (water = 1): 1.4 (50% solution)1.84 @25 °C1.38 g/mL at 20 °C(lit.) |
| Color/Form | Colorless liquid |
| Löslichkeit | Very soluble in water, ethanolvery soluble in H2O, ethanolMISCIBLE |
| Siedepunkt | 130 °C decomposes130°C (dec.) |
| Decomposition | When heated to decomposition it emits toxic vapors of boron and /hydrogen fluoride/. |
| Dampfdruck | 5.0 [mmHg]5 mmHg ( 20 °C) |
| Brechungsindex | Refractive index of a 20% aqueous solution: 1.3284 at 20 °C/DnD20 of a 20% aq soln 1.3284 |
| Physical Description | Fluoroboric acid appears as a colorless odorless poisonous liquid. Corrosive to metals and tissue. It is used in electroplating, metal cleaning and making diazo salts.Colorless liquid[ICSC] Pungent odor[Alfa Aesar MSDS]COLOURLESS LIQUID. |
| Dissociation Constants | pKa: -4.9 |
| Other Experimental Properties | Heat of formation: 388.5 kcalundergoes limited hydrolysis in water to form hydroxyfluoborate ionsmajor product is BF3OH- ionforms crystalline salts with metalsHeat of formation (aqueous, 1 molal at 25 °C): -1527 kJ/molspecific gravity (48% solution): 1.37specific gravity (42% solution): 1.32specific gravity (30% solution): 1.20surface tension (48% solution at 25 °C): 65.3 mN/mFluoroboric acid does not exist as a free, pure substancethe acid is only stable as the solvated ion pair, such as H3O+BF4- |
| Schmelzpunkt | -90°C |
| Dampfdichte | 3 (vs air) |
| Flammpunkt | −40 °F |
| pKa (Säurekonstante) | -4.9[at 20 ℃] |
| Aggregatzustand | Liquid |
| Farbe | Light Yellow |
| Geruch | Odorless |
| Merck | 14,4149 |
| Stabilität | Stable. Incompatible with strong bases, cyanides. |
| InChI | 1S/BF3.FH/c2-1(3)4/h1H |
| InChIKey | LEMQFBIYMVUIIG-UHFFFAOYSA-N |
| SMILES | F.FB(F)F |
| CAS Datenbank | 16872-11-0(CAS DataBase Reference) |
| EPA chemische Informationen | Fluoroboric acid (16872-11-0) |
Sicherheit & Vorschriften
| GHS-Einstufung | DangerH314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501 (click each P-code to see the statement)H290 (34.5%): May be corrosive to metals [Warning Corrosive to Metals]P234, P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P390, P405, P406, and P501 (click each P-code to see the statement) |
|---|---|
| Regulatorische Informationen | Chemical: Borate(1-), tetrafluoro-, hydrogenBorate(1-), tetrafluoro-, hydrogen (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Borate(1-), tetrafluoro-, hydrogen (1:1) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 26-04-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/14214Tetrafluoroboric acid: Does not have an individual approval but may be used under an appropriate group standardThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
| DOT-Kennzeichnung | Corrosive |
| Brandgefahren | Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. |
| Gesundheitsgefahren | Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:· TOXIC and/or CORROSIVEinhalation, ingestion or skin contact with material may cause severe injury or death. |
| Gefahrenübersicht | Solutions 30-70% are corrosive to skin[Quick CPC] High inhalation exposure can cause pulmonary edema[ICSC] Reacts with water evolving heatCorrosive to tissue[CAMEO] Not stored in bone, like the F- ion, because excretion is more rapid than hydrolysisCauses burns to skin and eyeInhalation may cause pulmonary edema[IUCLID] Causes somnolence and ataxia in oral lethal-dose studies of mice and rats[RTECS] Causes burnsInhalation may cause corrosive injuries to upper respiratory tract and lungs[Alfa Aesar MSDS] |
| DOT-Nummer und Handbuch | 1775 154 |
| Reaktive Gruppe | Acids, Strong Non-oxidizing |
| EG-Einstufung | Symbol: CR: 34S: (1/2)-26-27-45 |
| UN-Einstufung | UN Hazard Class: 8UN Pack Group: II |
| Reactivity Alerts | Known Catalytic Activity |
| OSHA Standards | Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 2.5 mg/cu m. /Fluorides, as F/ |
| Reactivity Profile | FLUOROBORIC ACID is a strong acid. Reacts exothermically with chemical bases (examples: amines, amides, and inorganic hydroxides). These reactions can generate dangerously large amounts of heat in small spaces. Dissolution in water or the dilution of a concentrated aqueous solution may generate significant heat. Reacts with active metals, including such structural metals as aluminum and iron, to release hydrogen, a flammable gas. Can initiate the polymerization of certain alkenes. Reacts with cyanide compounds to release gaseous hydrogen cyanide. Generates flammable and/or toxic gases in contact with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and strong reducing agents. Additional gas-generating reactions occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and carbonates. May catalyze (increase the rate of) chemical reactions. Attempted drying of the acid with acetic anhydride caused an explosion at 0 °C [J. Organomet. Chem., 1975, 94, 319]. |
| Brandbekämpfung | Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:In case of fire in the surroundings, use appropriate extinguishing media. |
| Erste-Hilfe-Maßnahmen | Fresh air, rest. Half-upright position. Refer immediately for medical attention.Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention. Apply calcium gluconate to the burn areas.First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention. |
| Freisetungsmaßnahmen | · CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. |
| Erste Hilfe | Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:General First Aid: |
| Sichere Lagerung | Separated from strong bases, metals and food and feedstuffs. Well closed. Ventilation along the floor. Store only in original container. Do NOT store or transport in containers made from metal or glass. Store in an area without drain or sewer access. |
| Expositionsschutz und Persönliche Schutzausrüstung | · Wear positive pressure self-contained breathing apparatus (SCBA). |
| Brandbekämpfungsverfahren | Use appropriate extinguishing agent for surrounding fire. Use water spray to keep fire-exposed containers cool.If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire (Material itself does not burn or burns with difficulty). Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. |
| Lagerbedingungen | Separated from strong bases, food and feedstuffs. Well closed. Ventilation along the floor. /table/Pure HBF4 (fluoroboric acid) may be stored in glass vessels at room temperature. |
| Reinigungsverfahren | Aqueous HBF4 and/or its salt is treated by aluminum sulfate or ferric chloride and aqueous ammonia, ammonium sulfate, ammonium chloride and urea, then with calcium hydroxide, and precipitate is filtered.Spill or leak procedures: Stop or control the leak, if this can be done without undue risk. Approach release from upwind. Control runoff and isolate discharged material for proper disposal.Environmental considerations: land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Absorb bulk liquid with fly ash or cement powder. Neutralize with agriculture lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3).Environmental considerations: water spill: Neutralize with agriculture lime (CaO), crushed limestone (CaCO3), or sodium bicarbonate (NaHCO3).For more Cleanup Methods (Complete) data for FLUOBORIC ACID (6 total), please visit the HSDB record page. |
| Freisetung ohne Brand | Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: |
| Entsorgungsverfahren | SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air qualitypotential migration in soil or watereffects on animal, aquatic, and plant lifeand conformance with environmental and public health regulations.Waste treatment ... includes a pretreatment with aluminum sulfate to facilitate hydrolysis, and final precipitation of fluoride with lime.Two methods for the treatment of fluoborate wastewater from the electroplating of tin, solder, copper and nickel striping were investigated. These involved specific ion flotation and electrodialysis. The fluoborate ion was found to bind with an alkylamine acetate by displacement of the acetate group and can be removed from dilute waste stream either by air flotation or ultrafiltration. A high density low porosity graphite anode that is resistant to the corrosive properties of fluoboric acid electrolyte was developed for electrodialysis treatment of the tin, solder and copper fluoborate containing wastewaters. In general, recoveries of the fluoborate ions were in excess of 80 percent. |
| Verschüttetes entsorgen | Personal protection: complete protective clothing including self-contained breathing apparatus. Consult an expert! Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. |
| Unerwünschte Wirkungen | Dermatotoxin - Skin burns. |
| Expositionspfade | Serious local effects and systemic effects by all routes of exposure. |
| Signs and Symptoms | Sore throat. Cough. Burning sensation. Shortness of breath. Laboured breathing.Pain. Blisters.Redness. Pain. Severe deep burns.Burns in mouth and throat. Sore throat. Burning sensation. Abdominal pain. Diarrhoea. Vomiting. Shock or collapse. |
| ICSC Environmental Data | This substance may be hazardous to the environment. Special attention should be given to fish. |
| Medical Surveillance | Physical examinations of exposed personnel every six months including fluoride determinations in urine, studies of liver and kidney functionchest X-ray, annually. Protect from exposure those individuals with diseases of kidneys, liver, and lung. /Hydrofluoric acid/No specific considerations are needed for boric acid or borates except for general health and liver and kidney function. /Boric acid and borates/ |
| Human Toxicity Excerpts | /SIGNS AND SYMPTOMS/ Chronic effects: (from inhalation or ingestion), may cause fluorosis. Symptoms- weight loss, malaise, anemia, leukopenia, discoloration of teeth, osteosclerosis. /Hydrofluoric acid//SIGNS AND SYMPTOMS/ Contact of skin with anhydrous liquid produces severe burns that are felt immediately. Concentrated aqueous solution also cause early sensation of pain, but dilute solution may give no warning of injury. /Hydrofluoric acid//SIGNS AND SYMPTOMS/ All forms-dilute or concentrated solution or vapor of hydrofluoric acid (HF) ... cause severe burns. Inhalation of anhydrous HF or HF mists or vapors can cause severe respiratory tract irritation that may be fatal. /Hydrofluoric acid//SIGNS AND SYMPTOMS/ Effects of short-term exposure: Corrosive. The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of the aerosol may cause lung edema. The effects may be delayed. /from table/For more Human Toxicity Excerpts (Complete) data for FLUOBORIC ACID (9 total), please visit the HSDB record page. |
| Non-Human Toxicity Excerpts | /LABORATORY ANIMALS: Acute Exposure/ For mice (5 per group), an approximate LD50 was given as <50 mg/kg bw for oral administration of tetrafluoroboric acid. The observation period was 14 days. Clinical signs of toxicity included weakness, ataxia and twisting motions. Deaths occurred between 15 minutes and 9 days after administration./LABORATORY ANIMALS: Acute Exposure/ Following ip administration of tetrafluoroboric acid to rats (5/group), an approximate LD50 of 10-25 mg/kg bw was reported. The observation period was 14 days. Clinical signs of toxicity observed included weakness and ataxia. Deaths occurred between 27 minutes and 9 days after administration./LABORATORY ANIMALS: Acute Exposure/ The danger of hydrofluoric acid solutions depends upon the concentration. Experimental splash burns in rabbits... have shown 20% solution to cause immediate damage with total corneal opacification with conjunctival eschemia, and with corneal stromal edema within an hour, followed by necrosis of anterior ocular structures. An 8% solution produced ischemia and corneal stromal edema persisting for 40-65 days, accompanied by corneal vascularization. Even a 2% solution caused mild persistent stromal edema and vascularization, but after 0.5% solution there was recovery in 10 days. /Hydrofluoric acid//LABORATORY ANIMALS: Acute Exposure/ The acute oral toxicity of tetrafluoroboric acid was investigated in groups of 5 male and 5 female rats... . A 51.5% aqueous solution of tetrafluoroboric acid was used for testing. Dose levels were 10, 100, 464, and 1000 mg/kg bw and the observation period was 14 days. The 10 mg/kg bw dose was tolerated without signs of toxicity. Following 100 mg/kg bw, dyspnea, sedation and lack of appetite were observed, and in the males, half-closed eyes. The signs of toxicity were reversible after 24 hours. Following 464 mg/kg bw, signs of intoxication included dyspnea, sedation, half or completely closed eyes, hyporeflexia, ataxia, body tremor, reduced muscle tone, squatting position and prone position, vocalization, slightly reduced locomotor activity and glassy eyes, but the dose was survived by all rats. Following 1000 mg/kg bw, all animals died within 24 hours. Autopsy of the deceased rats revealed edematous and highly hemorrhagic gastrointestinal walls as well as blood-piebalded livers. Dissection of the surviving rats showed no treatment-related findings.For more Non-Human Toxicity Excerpts (Complete) data for FLUOBORIC ACID (7 total), please visit the HSDB record page. |
| Evidence for Carcinogenicity | A4Not classifiable as a human carcinogen. /Fluorides, as F/ |
| Antidote and Emergency Treatment | Maintain an open airway and assist ventilation if nescessary. treat coma, seizures, hypotension, and renal failure if they occur. There is no specific antidote. Administer activated charcoal (although boric acid is not well absorbed). Consider gastric lavage for large ingestions. /Boric acid, Borates, and Boron/Hemodialysis is effective and is indicated after massive ingestions and for supportive care of renal failure. Peritoneal dialysishas not proved effective in enhancing elimination in infants. /Boric acid, Borates, and Boron/In acute poisonings, if a large amount has been ingested and the patient is seen within one hour of exposure, gastrointestinal decontamination should be considered ... .It is important to keep in mind that vomiting and diarrhea are common, and severe poisoning may be associated with seizures. Therefore induction of emesis by syrup of ipecac is probably contraindicated in these exposures. Catharsis is not indicated if diarrhea is present. /Boric acid and Borates/If ingestion of borate has been massive (several grams), or has extended over several days, administer intravenous glucose and electrolyte solutions to sustain urinary excretion of borate. Monitor fluid balance and serum electrolytes (including bicarbonate capacity ) regularly. Monitor cardiac status by ECG. Test the urine for proteins and cells to detect renal injury, and monitor serum concentration of borate. Metabolic acidosis may be treated with sodium bicarbonate. If shock develops, it may be necessary to infuse plasma or whole blood. Administer oxygen continuously. If oliguria (less than 25 to 30 mL urine per hour) occurs, intravenous fluids must be slowed or stopped to avoid overloading the circulation. Such patients should be referred to a center capable of providing intensive care for critically ill patients. /Boric acid and Borates/For more Antidote and Emergency Treatment (Complete) data for FLUOBORIC ACID (7 total), please visit the HSDB record page. |
| Non-Human Toxicity Values | LD50 Rat oral 100-200 mg/kg bwLD50 Rat oral 464-1000 mg/kg bw /51% Tetrafluoroboric acid/LD50 Mouse oral <50 mg/kg bwLD50 Guinea pig dermal 2.5-5.0 mL/kg bw /21.7% Tetrafluoroboric acid/LD50 Rat ip 10-25 mg/kg bw |
| Landesrichtlinien für Trinkwasser | (CA) CALIFORNIA 1000 ug/L /Boron/(NH) NEW HAMPSHIRE 630 ug/L /Boron/(ME) MAINE 1,400 ug/L /Boron/(MN) MINNESOTA 1,000 ug/L /Boron/(WI) WISCONSIN 960 ug/L /Boron/ |
| Bundesrichtlinien für Trinkwasser | EPA 600 ug/L /Boron/ |
| F | 3 |
| Wassergefährdungsklasse (WGK) | 1 |
| TSCA-Inventar-Status | TSCA listed |
| UN-Transportnummer | UN 1775 |
| Zollcode | 28111990 |
| RTECS-Nr. | ED2685000 |
| R-Sätze (R) | 34 |
| Gefahrensymbole | C |
| hazard_note | Corrosive |
| Sicherheitshinweise (S) | 26-36/37/39-45-37-27 |
| Gefahrenklasse | 8Eye Dam. 1Skin Corr. 1B |
| Verpackungsgruppe | II |
| Lagerklasse | 8B - Non-combustible corrosive hazardous materials |
| Gefahrstoffdaten | 16872-11-0(Hazardous Substances Data) |
Anwendungen & Verwendung
Verwenden
Tetrafluoroboric acid is used in conjunction with various methods of cleaning and treat the surface of substrates. It is used as radiotracers.