Description Synthesis Application Toxicological studies Safeties References
ChemicalBook > CAS DataBase List > Aluminum fluoride

Aluminum fluoride

Description Synthesis Application Toxicological studies Safeties References
Product Name
Aluminum fluoride
CAS No.
7784-18-1
Chemical Name
Aluminum fluoride
Synonyms
ALUMINIUM FLUORIDE;metals basi;fluoridhlinity;Trifluoroalumane;ALUMINUM FLUORIDE;ALUMNIUM FLUORIDE;ALF3(LOW DENSITY);ALUMINIUM FLUORID;Trifluoroaluminum;aluminiumfluorure
CBNumber
CB7107294
Molecular Formula
AlF3
Formula Weight
83.98
MOL File
7784-18-1.mol
More
Less

Aluminum fluoride Property

Melting point:
1290 °C (lit.)
Boiling point:
1291 °C
Density 
3.1 g/mL at 25 °C (lit.)
Flash point:
1250°C
solubility 
Sparingly soluble in acids and alkalies. Insoluble in Acetone.
form 
powder
color 
White to light gray
Specific Gravity
2.882
Water Solubility 
SLIGHTLY SOLUBLE
Sensitive 
Hygroscopic
Sublimation 
1250 ºC
Merck 
14,339
Exposure limits
ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2 mg/m3; TWA 2.5 mg/m3
Dielectric constant
2.2(Ambient)
CAS DataBase Reference
7784-18-1(CAS DataBase Reference)
NIST Chemistry Reference
Aluminum trifluoride(7784-18-1)
EPA Substance Registry System
Aluminum trifluoride (7784-18-1)
More
Less

Safety

Hazard Codes 
Xn,T,Xi
Risk Statements 
22-36/37/38
Safety Statements 
26-37/39
RIDADR 
3260
WGK Germany 
1
RTECS 
BD0725000
Hazard Note 
Highly Toxic/Irritant
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
28261210
Hazardous Substances Data
7784-18-1(Hazardous Substances Data)
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H318Causes serious eye damage

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
449628
Product name
Aluminum fluoride
Purity
anhydrous, powder, 99.8% trace metals basis
Packaging
10g
Price
$140
Updated
2024/03/01
Sigma-Aldrich
Product number
449628
Product name
Aluminum fluoride
Purity
anhydrous, powder, 99.8% trace metals basis
Packaging
50g
Price
$487
Updated
2024/03/01
Alfa Aesar
Product number
011497
Product name
Aluminum fluoride, anhydrous, 99+%
Packaging
10g
Price
$98.8
Updated
2024/03/01
Alfa Aesar
Product number
011497
Product name
Aluminum fluoride, anhydrous, 99+%
Packaging
1g
Price
$22.7
Updated
2023/06/20
Strem Chemicals
Product number
13-0075
Product name
Aluminum fluoride, anhydrous, 99+%
Packaging
10g
Price
$86
Updated
2024/03/01
More
Less

Aluminum fluoride Chemical Properties,Usage,Production

Description

Aluminum fluoride is in the form of white crystalline solid or a white powder. It occurs naturally as minerals rosenbergite and oskarssonite.1 It can also be prepared synthetically.

Synthesis

Aluminum fluoride are produced by methods in the following:
1) Fluosilicic acid with aluminum hydroxide2
H2SiF6 + 2 Al(OH)3 → 2 AlF3 + SiO2 + 4 H2O (I) 
The reaction is exothermal and proceeds in several steps. It can be described by the following three reactions:
3H2SiF6 + 2 Al(OH)3 → Al2(SiF6)3 + 6 H2O (II)
Al2(SiF6)3 + 6 H2O → 2 AlF3 + 3 SiO2 + 12 HF (III) 
12 HF + 4 Al(OH)3 → 4 AlF3 + 12 H2O 
The reaction is carried between 70°C and 100°C. The concentration of fluosilicic acid can be as high as 35 wt% in a water solution. As the produced aluminum fluoride solution is metastable and the trihydrate begins to crystalize out quickly at temperature around 90°C, precipitated solid silica must be removed as quickly as possible.
2) Al2O3 with aqueous hydrofluoric acid3

Hydrofluoric acid is added dropwise under vigorous stirring at room temperature into Al2O3 suspension. Subsequently the solid oxide is completely dissolved. The resulting clear solution is stirred for days at room temperature. During this period, the white solid precipitates are separated from the solvent, washed with water, and consequently dried. After treatment in a muffle furnace at the desired calcination temperature, aluminum fluoride is obtained.
3) Aluminum alkoxide with non-aqueous HF solution4
Aluminum alkoxide, Al(OR)3 (R = Me, Et, iPr, or tBu), reacts with non-aqueous HF solution in an organic solvent. The reaction is carried in a sol-gel state.  After aging, a solid is formed which settles. The solid is separated by centrifugation and dried under vacuum. Gas phase fluorination of the dried gel is then applied to obtain aluminum fluoride.

Application

Aluminum fluoride is one of the most important additives in the industrial production of aluminum. The usage of aluminum fluoride can lower the melting point of cryolite and better the physical and chemical properties of the electrolyte. In the aluminum production, aluminum oxide is dissolved in a solution of cryolite. By passing an electrical current through the solution, aluminum is produced. Nevertheless, cryolite solution melts at about 1000°C. When aluminum fluoride is added, electrolysis can happen in the cryolite solution at a temperature 40-60°C lower, reducing the required amount of energy to produce aluminum.5 Aluminum fluoride is used as a barrier layer to retard oxidation of aluminum mirrors.6 It is used as a flux in ceramic glazes and enamels, in the manufacture of aluminum silicate, and as a catalyst.
Aluminum fluoride complexes with proteins can be used to study the mechanistic aspects of phosphoryl transfer reactions in biology, which are of fundamental importance as phosphoric acid anhydrides such as ATP and GTP control most of the reactions involved in metabolism, growth and differentiation.8  
Aluminum fluoride, together with zirconium fluoride, is used to produce fluoroaluminate glasses. In agriculture, aluminum fluoride can be used to inhibit fermentation. Physical vapor deposited aluminum fluoride can be used as a low index optical thin film in situations when far UV transparency is required.1 

Toxicological studies

Oral animal lethal dose (LD50) of aluminum fluoride is 0.1 g/kg. Aluminum fluoride is less toxic than most fluorides due to its slight water solubility. Exposure to high concentration of aluminum fluoride causes hypocalcemia. Inhalation and ingestion of aluminum fluoride result in typical symptoms of fluoride poisoning. Symptoms of severe poisoning include shortness of breath, congestion of the lungs, muscle spasm, and convulsions.8 Acute (short-term) toxic effects may include the death of animals, birds, or fish and death or low growth rate in plants. Acute effects are observed in 2 to 4 days after exposure of animals or plants to aluminum fluoride. Chronic (long-term) toxic effects may include shortened life span, reproductive problems, lower fertility, and changes in appearance or behavior in exposed animals.

Safeties

Aluminum fluoride is a non-combustible solid. But it is incompatible with many other commodities including chemically active metals (e.g. potassium and sodium), acid, and acid fumes. Contact can cause fire or explosion. Upon heating, toxic fumes of fluoride, including extremely toxic hydrogen fluoride, can be emitted.

References

  1. https://en.wikipedia.org/wiki/Aluminium_fluoride
  2. John Karlström, Reactor Model for Production of Aluminum Fluoride
  3. W. Kleist, C. Häßner, O. Storcheva, K. Köhler, A simple aqueous phase synthesis of high surface area aluminum fluoride and its bulk and surface structure, Inorganica Chimica Acta, 2006, vol. 359, pp. 4851-4854
  4. S. K. Ruediger, U. Groß, M. Feist, H A. Proscott, S. C. Shekar, S. I. Troyanov, E. Kemnitz, Non-aqueous synthesis of high surface area aluminum fluoridea mechanistic investigation, Journal of Materials Chemistry, 2005, vol. 15, pp. 588-597
  5. https://info.noahtech.com
  6. R. Elaish, M. Curioni, K. Gowers, A. Kasuga, H. Habazaki, T. Hashimoto, P. Skeldon, Elelctrochimica Acta, 2017, vol. 245, pp. 854-862
  7. Alfred Wittinghofer, Signaling mechanistics: Aluminum fluoride for molecule of the year, 1997, vol. 7, pp. R682-R685
  8. Jeffrey Wayne Vincoli, Risk Management for hazardous Chemicals, Bund 1, 1996, ISBN 1-56670-200-3

Chemical Properties

Aluminum fluoride, AlF3, is an anhydrous crystalline powder with a melting point of 1291 "C. Aluminum fluoride (hydrated), AlF3·31/2H20, is a white crystalline powder that is insoluble in water.

Chemical Properties

Aluminum fluoride is a white, odorless powder or granule.

Uses

Aluminum fluoride is used to produce lowmelting aluminum metal, as a flux in ceramic glazes and white enamels, and as a catalyst in chemical reactions.

Uses

In ceramics, as flux in metallurgy, in aluminum manufacture, as inhibitor of fermentation, as catalyst in organic reactionsAluminum fluoride is used in the smelting process to lower the melting point of electrolytes, production of aluminum silicates, refining of aluminum scarp, production of specialty refractory products, and in glass industry as filler. It is used as flux ingredient to remove magnesium.

Uses

Production of aluminum to lower the melting point and increase the conductivity of the electrolyte, flux in ceramic glazes and enamels, manufacture of aluminum silicate, catalyst.

General Description

Odorless white powder or granules. Denser than water. Solubility in water at 25°C equals 0.559 g / 100 mL.

Air & Water Reactions

Slightly soluble in water

Reactivity Profile

Aluminum fluoride when heated to sublimation condition, emits toxic fumes of fluoride [USCG, 1999].

Hazard

Strong irritant to tissue.

Health Hazard

ACUTE: respiratory irritation; possible nose bleeding or vomiting; CHRONIC: aggravates bronchitis/asthma; increased bone density.

Fire Hazard

Special Hazards of Combustion Products: When heated to sublimation condition, emits toxic fumes of fluoride

Flammability and Explosibility

Non flammable

Safety Profile

A poison by ingestion. Moderately toxic by subcutaneous route. A severe eye irritant. Violently impact-sensitive when in contact with Na and K. When heated to decomposition it emits toxic fumes of F-. See also FLUORIDES and ALUMINUM COMPOUNDS.

Potential Exposure

Used as component of electrolyte from which aluminum metal is produced; in the manufacture of ceramics, enamels, aluminum silicate; as flux in metallurgy; as a fermentation inhibitor

Shipping

UN3260 Corrosive solid, acidic, inorganic, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

Incompatibilities

Reacts violently with potassium or sodium

Waste Disposal

Neutralize with soda ash; add slaked lime; let stand for 24 hours. Transfer sludge to sewage facility.

More
Less

Aluminum fluoride Suppliers

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44751
Advantage
61
Shanghai Mintchem Development Co., Ltd
Tel
021 6845 0923
Fax
0086 20 8234 8082
Email
fluorine@tatichem.com
Country
China
ProdList
38
Advantage
68
Secco work (Beijing) chemical technology co., LTD
Tel
0566-8928158
Fax
010-69755668
Email
343367102@QQ.COM
Country
China
ProdList
360
Advantage
54
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18736
Advantage
57
BEST-REAGENT
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11726
Advantage
57
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9725
Advantage
55
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22519
Advantage
55
More
Less

View Lastest Price from Aluminum fluoride manufacturers

Hebei Mojin Biotechnology Co., Ltd
Product
Aluminum fluoride 7784-18-1
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-09-11
Hebei Guanlang Biotechnology Co., Ltd.
Product
Aluminum fluoride 7784-18-1
Price
US $10.00/KG
Min. Order
100KG
Purity
99%
Supply Ability
100 mt
Release date
2021-10-28
Shijiazhuang tongyang Import and Export Co., LTD
Product
Aluminum fluoride 7784-18-1
Price
US $48.00/KG
Min. Order
1g
Purity
99.9%
Supply Ability
500000kgs
Release date
2021-08-10

7784-18-1, Aluminum fluorideRelated Search:


  • fluoridhlinity
  • ALUMINIUM TRIFLUORIDE
  • ALUMINIUM FLUORIDE
  • Aluminum trifluoride
  • ALUMINUM FLUORIDE
  • ALUMINUM(III) FLUORIDE
  • Aluminium fluoride,99.9+%,pure
  • ALUMINIUM FLUORIDE H
  • Aluminium(III) fluoride, anhydrous 99.9%
  • aluminium fluoride,anhydrous
  • Aluminiumfluoride1
  • Aluminiumfluoridetech
  • ALUMNIUM FLUORIDE
  • ALF3(LOW DENSITY)
  • ALUMINIUM FLUORID
  • Aluminum fluoride, anhydrous
  • ALUMINUM FLUORIDE, FOR GLASS INDUSTRY
  • ALUMINIUM FLUORIDE CALCINED, TECHNI-CAL
  • ALUMINUM FLUORIDE, ANHYDROUS, POWDER, 99.9+%
  • AluminiumfluorideAlf3:90%
  • Aluminumfluoride,anhydrous,99.5%
  • Aluminium Fluoride, Anhydrous 99.9%
  • Aluminium(III) fluoride, anhydrous 99%
  • Trifluoroaluminum
  • Aluminum fluoride anhydrous, powder, >=99.9% trace metals basis
  • Aluminum fluoride reagent grade
  • Aluminum fluoride, anhydrous, 99.99% trace metals basis
  • Trifluoroalumane
  • Aluminiumfluorideanhydrous99.5%
  • Aluminium fluoride, pure, 99.9+%
  • Aluminium fluoride (AlF3)
  • Aluminumfluoride,anhydrous,98.5%
  • ALUMINIUM FLUORIDE, ANHYDROUS: 98.5%
  • ALUMINUM(III) FLUORIDE, ANHYDROUS
  • Aluminum fluoride, anhydrous, 99.99% (metals basis)
  • Aluminum trifluoride (as fluorine )
  • aluminiumfluorure
  • aluminiumfluorure(french)
  • aluminumfluoride(alf3)
  • Aluminumfluoride,anhydrous,99+%
  • metals basi
  • ALUMINIUM FLUORIDE (AIF3)
  • Aluminium fluoride, anhydrous, 99.99%
  • Aluminium(III) fluoride, anhydrous
  • CCTO(calcium copper titanate) powder
  • Aluminium chloride hexahydrate high purity
  • Aluminum Fluoride titration solution
  • 7784-18-1
  • 14949-86-9
  • 784-18-1
  • Al3F
  • AlF23H2O
  • metal halide
  • Inorganics
  • Inorganic Fluorides
  • Aluminum Salts
  • AluminumMetal and Ceramic Science
  • Crystal Grade Inorganics