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| | Ammonium fluoride Basic information |
| | Ammonium fluoride Chemical Properties |
| Melting point | 98°C | | Boiling point | 65°C/760mmHg | | density | 1.11 g/mL at 20 °C | | bulk density | 250-350kg/m3 | | vapor pressure | 0Pa at 25℃ | | storage temp. | Store at +15°C to +25°C. | | solubility | H2O: 1 M at 20 °C, clear, colorless | | form | Powder/Solid | | pka | -1.75±0.70(Predicted) | | Specific Gravity | 1.009 | | color | White | | PH | 6 (50g/l, H2O, 20℃) | | Odor | Odorless | | PH Range | Aqueous solution is an acid | | Water Solubility | soluble | | Specific Heat Capacity | Cp(crystal): 1.76 J/(g·K), at 25℃ | | Sensitive | Hygroscopic | | Merck | 14,522 | | Exposure limits | ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 | | Stability: | Stable. Incompatible with strong oxidizing agents, water, most common metals, strong bases, strong acids. Attacks glass. | | Cosmetics Ingredients Functions | ANTIPLAQUE
ORAL CARE | | InChI | 1S/FH.H3N/h1H;1H3 | | InChIKey | LDDQLRUQCUTJBB-UHFFFAOYSA-N | | SMILES | N.F | | LogP | -4.37 at 25℃ | | CAS DataBase Reference | 12125-01-8(CAS DataBase Reference) | | EPA Substance Registry System | Ammonium fluoride (12125-01-8) |
| Hazard Codes | T | | Risk Statements | 23/24/25-41 | | Safety Statements | 26-45-1/2-36/37/39-39-36/37 | | RIDADR | UN 2505 | | WGK Germany | 1 | | RTECS | BQ6300000 | | F | 3-9 | | TSCA | TSCA listed | | HazardClass | 6.1 | | PackingGroup | III | | HS Code | 28261910 | | Storage Class | 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects | | Hazard Classifications | Acute Tox. 3 Dermal
Acute Tox. 3 Inhalation
Acute Tox. 3 Oral | | Hazardous Substances Data | 12125-01-8(Hazardous Substances Data) | | Toxicity | LD50 ipr-rat: 31 mg/kg XEURAQ UR-154,1951 |
| | Ammonium fluoride Usage And Synthesis |
| Chemical Properties | Ammonium fluoride (NH4F) is a white crystalline salt that is soluble in cold water. It is unstable and emits a strong odor of ammonia. Ammonium fluoride is manufactured and sold in solid form or in aqueous solutions. Its applications include glass etching, wood preservation, and serving as a mordant in the textile industry. | | Physical properties | White, deliquescent, crystalline solid; occurs in various forms, as granular powder (commercial products), needles or leaflets, or hexagonal prism (formed on sublimation and condensation); density 1.009 g/cm3 at 25°C; decomposes on heating; highly soluble in cold water (100g/100g at 0°C); decomposes in hot water; slightly soluble in alcohol, insoluble in liquid ammonia. | | Uses | It is used for etching of glass, preservation of food, in printing textile, and as mothproofing agent. It is used in chemical analysis and in brewing. It is used in the synthesis of NaHoF4 and NaEuF4, which are important in solid state lasers as well as photoluminescence. The fluoride ion is used as a base and nucleophile in organic synthesis. Ammonium fluoride providee safe deprotection strategy for the tert-butyldimethylsilyl (TBS) group during RNA synthesis. | | Uses | Ammonium fluoride is employed in a new hydrothermal synthesis of complex flourides NaHoF4 and NaEuF4 these interesting compounds have the fluorite structure and are important for solid-state lasers as well as for photoluminescence and magnetic characteristics.
The product was used to prepare Ce3F nanoparticles (NPs) which were further conjugated to photosensitizers along with Au NPs to improve singlet oxygen generation in photosensitizers. | | Preparation | Anhydrous ammonium fluoride is prepared by reacting anhydrous NH3 and HF or by heating aqueous solutions of NH4F at reduced pressure, so that a mixture of H2O and NH3 is distilled. | | Definition | ChEBI: Ammonium fluoride is a fluoride salt having ammonium (NH4+) as the counterion. It is an ammonium salt and a fluoride salt. | | General Description | Ammonium fluoride is a white crystalline solid. It is soluble in water. It is noncombustible. It is corrosive to aluminum. It is used in chemical analysis, in brewing, and as a preservative for wood. | | Air & Water Reactions | Dissolves in water and forms dilute solution of hydrofluoric acid. May corrode glass, cement, and most metals [USCG, 1999]. Water soluble. | | Reactivity Profile | Salts, basic, such as Ammonium fluoride, are generally soluble in water. The resulting solutions contain moderate concentrations of hydroxide ions and have pH's greater than 7.0. They react as bases to neutralize acids. These neutralizations generate heat, but less or far less than is generated by neutralization of the bases in reactivity group 10 (Bases) and the neutralization of amines. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. | | Hazard | Corrosive to tissue. | | Health Hazard | Inhalation of dust may cause irritation of respiratory system. Ingestion is harmful; readily soluble fluorides may be fatal if relatively small quantities are swallowed. Contact with eyes causes local irritation of the mucous membrane. Contact with skin may cause burns. High concs. of fluorine in the urine have been reported following skin contact. | | Battery Materials | Ishioma L. Egun and colleagues reported a sustainable pathway to convert waste silicon cuttings from wafer slicing into silicon–carbon composite anodes via ammonium fluoride (NH4F) mediated carbonization in the presence of graphite[1]. | | Safety Profile | Poison by subcutaneous and intraperitoneal routes. See also FLUORIDES. When heated to decomposition it emits very toxic fumes of F-, NO,, and NH3. Incompatible with ClF3 | | Potential Exposure | Ammonium fluoride is used in printing
and dyeing textiles; glass etching, moth-proofing and
wood preserving; in analytical chemistry, agriculture, antiseptic
in brewing. | | Shipping | UN2505 Ammonium fluoride, Hazard Class:
6.1; Labels: 6.1-Poisonous materials. | | Incompatibilities | Acids, alkalis, chlorine trifluoride.
Corrodes glass, cement, most metals. | | Waste Disposal | Consult with environmental
regulatory agencies for guidance on acceptable disposal
practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing
storage, transportation, treatment, and waste disposal. | | References | [1] Egun, I. L., Yu, H., Zhou, X., Su, Y., Hou, Y., Liu, D., & Chen, Z. (2026). Ammonium fluoride-mediated waste silicon cuttings into silicon-graphite composite electrodes for lithium-ion batteries. Materials Today Sustainability, 34, Article 101337. https://doi.org/10.1016/j.mtsust.2026.101337
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| | Ammonium fluoride Preparation Products And Raw materials |
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