14104-20-2
silver tetrafluoroborate
CAS: 14104-20-2
Molecular Formula: AgBF4
14104-20-2 - Names and Identifiers
| Name | silver tetrafluoroborate |
| Synonyms | Silver fluoborate silver tetrafluoroborate SLIVER TERTRAFLUOROBORATE Silver(I) tetrafluoroborate FLUOROBORIC ACID SILVER SALT silver(1+) tetrafluoroborate tetrafluoro-borate(1-silver(1+) tetrafluoro-borate(1-silver(1++) Silver(I) tetrafluoroborate anhydrous, AgBF4 Fluoroboric acid silver(I) salt~Silver(I) fluoborate~Silver(I) fluoroborate |
| CAS | 14104-20-2 |
| EINECS | 237-956-5 |
| InChI | InChI=1/8Ag.4BFO2/c;;;;;;;;4*2-1(3)4/q8*+1;4*-2 |
| InChIKey | CCAVYRRHZLAMDJ-UHFFFAOYSA-N |
14104-20-2 - Physico-chemical Properties
| Molecular Formula | AgBF4 |
| Molar Mass | 194.67 |
| Melting Point | 70-73°C(lit.) |
| Water Solubility | SOLUBLE |
| Appearance | Crystalline Powder |
| Color | White to pale brown |
| Exposure Limit | ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 |
| Storage Condition | Store below +30°C. |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | Water-SOLUBLE |
14104-20-2 - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R34 - Causes burns R22 - Harmful if swallowed R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S27 - Take off immediately all contaminated clothing. |
| UN IDs | UN 3260 8/PG 2 |
| WGK Germany | 3 |
| RTECS | ED2875000 |
| FLUKA BRAND F CODES | 3-8-10-21 |
| TSCA | T |
| HS Code | 28432900 |
| Hazard Note | Corrosive |
| Hazard Class | 6.1 |
| Packing Group | III |
14104-20-2 - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| production method | 34G (0.268mol) silver fluoride was suspended in 40g of dry nitromethane, boron trifluoride was bubbled through the suspension under shaking for 30min. The instrument should be protected from moist air. The temperature of the reaction solution was raised to 60 ° C., and the reaction vessel was occasionally invaded into an ice bath to maintain this temperature. When the solid silver fluoride was almost dissolved, the addition of boron trifluoride was stopped. The amount of absorbed boron trifluoride was 19.5g(0.28mol, the theoretical amount of silver fluoride completely reacted was 18g). The nitromethane solution of silver tetrafluoroborate was colorless but slightly dark. N21h was introduced into the solution to remove excess boron trifluoride. Nitromethane was filtered through a glass sand zinc funnel under dry N2 into an evacuated (about 666PA) filter flask maintained at 70 °c. The nitromethane was collected in a liquid nitrogen cold trap. After removal of the nitromethane, the residue was a white solid which was ground to small particles in a dry box under n-pentane overlay. The purpose of using n-pentane is to isolate air, and it can be easily removed at atmospheric temperature to obtain a dry solid. The ground silver tetrafluoroborate is sucked to dryness at 70 °c to give 46g(88.5%). |
| category | toxic substances |
| toxicity grade | high toxicity |
| Acute toxicity | intravenous injection-mouse LD50: 56 mg/kg |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Separate storage and transportation from food and acids |
| extinguishing agent | sand and water |
| Occupational Standard | TWA 0.01 mg (silver)/m3 |
Last Update：2024-04-09 21:04:16
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