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Silver fluoride

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Silver fluoride Basic information

Product Name:
Silver fluoride
Synonyms:
  • Silver(I)fluoride,99%
  • Silver(I) fluoride 99%
  • Silver fluoride (as flouride)
  • Silver(I) fluoride, 99+% 25GR
  • Silver fluoride/ 98+%
  • SILVER MONOFLUORIDE, DRY
  • Silver(Ⅰ) fluoride
  • Silver(I) fluoride >=99.9% trace Metals basis
CAS:
7775-41-9
MF:
AgF
MW:
126.87
EINECS:
231-895-8
Product Categories:
  • metal halide
  • Analytical Reagents
  • Analytical Reagents for General Use
  • Analytical/Chromatography
  • Catalysis and Inorganic Chemistry
  • Chemical Synthesis
  • Metal and Ceramic Science
  • Salts
  • Fluorination
  • Fluorination Reagents
  • Puriss p.a.
  • Q-S
  • Silver
  • Synthetic Reagents
  • Q-S, Puriss p.a.
  • Analytical Reagents for General Use
  • Puriss p.a.
  • Silver Salts
  • Crystal Grade Inorganics
  • SilverMetal and Ceramic Science
Mol File:
7775-41-9.mol
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Silver fluoride Chemical Properties

Melting point:
≥300 °C(lit.)
Boiling point:
1150 °C
Density 
5.852 g/mL at 25 °C(lit.)
Flash point:
1150°C
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
Methanol (Slightly), Water (Slightly)
form 
solid
color 
orange to brown
Specific Gravity
5.852
Water Solubility 
182 g/100 mL (15.5 ºC)
Sensitive 
Moisture Sensitive & Hygroscopic
Merck 
14,8514
Exposure limits
ACGIH: TWA 0.01 mg/m3; TWA 2.5 mg/m3
NIOSH: IDLH 10 mg/m3; IDLH 250 mg/m3; TWA 0.01 mg/m3
Stability:
Stable. Incompatible with strong oxidizing agents, strong acids, reducing agents. Light sensitive. Hygroscopic.
InChIKey
REYHXKZHIMGNSE-UHFFFAOYSA-M
CAS DataBase Reference
7775-41-9(CAS DataBase Reference)
NIST Chemistry Reference
Silver monofluoride(7775-41-9)
EPA Substance Registry System
Silver fluoride (7775-41-9)
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Safety Information

Hazard Codes 
C
Risk Statements 
34-23/24/25-35
Safety Statements 
26-36/37/39-45-25-28
RIDADR 
UN 3260 8/PG 2
WGK Germany 
3
RTECS 
VW4250000
3-8-10-21
Hazard Note 
Corrosive
TSCA 
T
HazardClass 
HYGROSCOPIC, CORROSIVE
HazardClass 
8
HS Code 
28432900

MSDS

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Silver fluoride Usage And Synthesis

Chemical Properties

orange to brown solid

Uses

Silver(I) fluoride is used as a fluorination and desilylation reagent in organic synthesis. In medical filed, it is used as topical caries in aqueous form in dentistry. It is employed in organofluorine chemistry for addition of fluoride across multiple bonds, especially to prepare perfluoroalkylsilver(I) by reacting with alkenes. Further, it is involved in the preparation of tetralkylammonium fluorides by the reaction with tetralkylammonium bromide. In addition to this, it is used as a desulfuration-fluorination reagent on thiourea derived substrates.

Uses

  1. Silver fluoride is applied to convert organic Br and Cl Compounds to their fluoro analogs; as antiseptic.
  2. Preparation of bromoacetylenes from bulky, trialkylsilylacetylenes.
  3. Also used in a palladium-catalyzed cross coupling of acetanilides with trialkoxysilanes.
  4. Silver(I) fluoride is used as a fluorination and desilylation reagent in organic synthesis. In medical filed, it is used as topical caries in aqueous form in dentistry. It is employed in organofluorine chemistry for addition of fluoride across multiple bonds, especially to prepare perfluoroalkylsilver(I) by reacting with alkenes.
  5. Further, it is involved in the preparation of tetralkylammonium fluorides by the reaction with tetralkylammonium bromide. In addition to this, it is used as a desulfuration-fluorination reagent on thiourea derived substrates.

Uses

Industry
Application
Role/benefit
Organic synthesis
Fluorination of alkyl halides
Fluorination agent/source of fluoride, both soluble in water and organic solvents
Desulfuration-fluorination of thiourea derived substrates
Inorganic synthesis
Preparation of tetralkylammonium fluorides
Reactant/reacts with tetralkylammonium bromide
Preparation of chandelier-like [Ag10]2+ cluster
Reactant/reacts with silver acetylide
Dental caries
Prevention of dental caries
Anti-caries agent/little used for the instability of concentrated AgF solutions
Preparation of anti-caries agent (Ag(NH3)2F) with good stability
Raw material/source of the effective component
Others
Coating silicon surface with uniform silver microlayer
Reactant/source of Ag

Definition

ChEBI: Silver monofluoride is a silver salt and a fluoride salt.

Preparation

Silver(I) fluoride was prepared by reacting hydrogen fluoride with the carbonate and with the oxide.

General Description

Odorless yellow to gray solid. Sinks and mixes with water.

Air & Water Reactions

Water soluble.

Reactivity Profile

Boron reacts explosively when ground with Silver fluoride; silicon reacts violently [Bretherick 1979 p, 197]. Dimethyl sulfoxide is violently reactive with fluorinating agents such as Silver fluoride [Chem. Eng. News 44(24):7 1956]. When Silver fluoride is ground with calcium hydride the mass becomes incandescent [Mellor 3:389 1946-1947]. CaH2 reacts incandescently with AgF if subject to friction. (Mellor, 1941, Vol. 3, 389, 651).

Hazard

Strong irritant.

Health Hazard

Inhalation of dust causes irritation of nose and throat. Ingestion may cause vomiting, salty taste, abdominal pain, diarrhea, convulsions, collapse, thirst, disturbed color vision, and acute toxic nephritis. Contact with eyes causes irritation. Skin may be blackened on prolonged exposure.

Purification Methods

The fluoride is a hygroscopic solid with a solubility of 135g/100mL of H2O at 15o, and forms an insoluble basic fluoride in moist air. Purify it by washing with AcOH and dry *C6H6, then keep it in a vacuum desiccator at room temperature to remove *C6H6, and store it in opaque glass bottles. The flaky hygroscopic crystals darken on exposure to light. It attacks bone and teeth. [Sharpe J Chem Soc 4538 1952, Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 240 1963.]

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