13826-83-0
ammonium fluoroborate
CAS: 13826-83-0
Molecular Formula: BF4H4N
13826-83-0 - Names and Identifiers
| Name | ammonium fluoroborate |
| Synonyms | Ammonium Fluoborate Ammonium fluoborate ammonium fluoroborate ammoniumfluoroborate[qr] Ammonium tetrafluoroborate ammoniumtetrafluoroborate(1-) Ammonium tetrafluoroborate, pure |
| CAS | 13826-83-0 |
| EINECS | 237-531-4 |
| InChI | InChI=1/BF4.H3N/c2-1(3,4)5;/h;1H3/q-1;/p+1 |
13826-83-0 - Physico-chemical Properties
| Molecular Formula | BF4H4N |
| Molar Mass | 104.84 |
| Density | 1.871g/mLat 25°C(lit.) |
| Melting Point | 230 °C |
| Water Solubility | soluble |
| Appearance | Odor-free white crystal |
| Specific Gravity | 1.871 |
| Color | White |
| Exposure Limit | ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 |
| PH | 3.5 (5g/l, H2O, 20℃) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Sensitive | Moisture Sensitive |
| MDL | MFCD06245785 |
| Physical and Chemical Properties | Clear Crystal or needle-like colorless crystals. relative density 1.85 solubility in water. 16 deg C 100ml water can dissolve 25g, deg C can dissolve 97g. Insoluble in alcohol. |
| Use | Used as aluminum, copper and aluminum alloy welding flux, Magnesium Casting anti-oxidation additive, flame retardant, agricultural Insecticide, Fungicide, resin binder |
13826-83-0 - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 9088 |
| WGK Germany | 3 |
| RTECS | BQ6100000 |
| TSCA | T |
| HS Code | 2826 90 80 |
| Hazard Note | Corrosive/Moisture Sensitive |
| Hazard Class | MOISTURE SENSITIVE, |
13826-83-0 - Upstream Downstream Industry
13826-83-0 - Nature
Open Data Verified Data
clear crystals or needle-like colorless crystals. The relative density was 1. 85. Soluble in water. lOOmL water can dissolve 25g at 16 ℃ and 97g at 100 ℃. The aqueous solution was weakly acidic. Insoluble in alcohol. It decomposes when heated above 110 °c. Sublimation occurs when heat is strong.
Last Update：2025-06-10 22:55:16
13826-83-0 - Preparation Method
Open Data Verified Data
fluoroboric acid ammonia neutralization method: hydrofluoric acid and boric acid are fluorinated for 2h or more in the fluorination kettle, and the fluoroboric acid solution is sent to the ammoniation kettle for ammonia gas neutralization, control ventilation with flow meter. A large amount of heat was released during the reaction, and an ice bath was set outside the kettle for cooling. The ammoniation temperature is often measured and the ventilation is adjusted. When the pH reaches 3 to 4, the ammonia flow is stopped. After cooling, the product that has been crystallized and precipitated is separated out, the remaining liquid is evaporated and concentrated, cooled to crystallize, centrifuged and dried below 80 ° C. To prepare ammonium fluoroborate finished product.
Last Update：2022-01-01 10:58:55
13826-83-0 - Introduction
Soluble in water. At 16°C, 100ml of water can dissolve 25g; 97g can be dissolved at 100°C, and the aqueous solution is weakly acidic. Insoluble in alcohol. Decompose when hot above 110°C. It sublimates when it is hot.
Last Update：2022-10-16 17:13:45
13826-83-0 - Application
Open Data Verified Data
used as a resin finishing catalyst in the textile and dyeing industry. As a gas flux to provide an inert atmosphere. It can also be used as an aluminum or copper welding flux, and used as a catalyst in the manufacture of magnesium and magnesium alloys and other oxidation-prone metal casting and precision casting sand resin adhesives. It can also be used as a flame retardant and a chemical reagent.
Last Update：2025-08-19 16:24:40
13826-83-0 - Safety
Open Data Verified Data
with polyethylene plastic barrel jacket carton packaging. 1kg net weight per barrel. Should be stored in a cool, ventilated, dry warehouse. Packaging should be sealed to prevent damage to the package. Transport should be protected against rain and sun exposure. Fluoboric acid is toxic, the allowable concentration is 2. 5mg/m3, ammonia is also harmful, in the production process, there should be a local exhaust device, the operator to do a good job protection.
Last Update：2025-06-10 22:55:16
13826-83-0 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | see boron trifluoride and fluoroboric acid. |
| use | used as analytical reagent and pesticide used as resin finishing catalyst in textile printing and dyeing industry. As a gas flux to provide an inert atmosphere. It can also be used as an aluminum or copper welding flux, as a catalyst in the manufacture of magnesium and magnesium alloys and other easily oxidized metal casting and precision casting sand resin adhesives. It can also be used as flame retardant and chemical reagent. used as aluminum, copper and aluminum alloy welding flux, magnesium casting anti-oxidation additive, flame retardant, agricultural insecticide, fungicide, resin binder, etc. used as resin finishing catalyst in textile printing and dyeing industry. As a gas flux to provide an inert atmosphere. It can also be used as an aluminum or copper welding flux, as a catalyst in the manufacture of magnesium and magnesium alloys and other easily oxidized metal casting and precision casting sand resin adhesives. It can also be used as flame retardant and chemical reagent. |
| production method | fluoboric acid ammonia neutralization method hydrofluoric acid and boric acid are fluorinated in a fluorination kettle below 60 ℃ for more than 2 hours to prepare fluoboric acid solution, which is sent to an ammonification kettle, neutralized by ammonia gas, and the ventilation volume is controlled by a flowmeter. During the reaction, a large amount of heat is released, and an ice bath is set outside the kettle for cooling. Ammoniation temperature is often measured and ventilation is adjusted. When pH reaches 3~4, ammonia is stopped. After cooling and cooling, the products that have been crystallized and precipitated are separated, the remaining liquid is evaporated and concentrated, cooled and crystallized, centrifuged and separated, and dried below 80 ℃ to obtain ammonium fluoroborate. Its HBF4 NH3 → NH4BF4 |
| category | corroded articles |
| toxicity classification | highly toxic |
| flammability hazard characteristics | High temperature produces toxic fluoride, nitrogen oxides and ammonia smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |
| occupational standard | TWA 2.5 mg (fluorine)/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-07-11 12:42:16
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Raw Materials for 13826-83-0