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CAS No.: | 7784-18-1 |
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Name: | Aluminum fluoride |
Article Data: | 211 |
Cas Database | |
Molecular Structure: | |
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Formula: | AlF3 |
Molecular Weight: | 83.9767 |
Synonyms: | Aluminumfluoride (8CI);Aluminum trifluoride;Aluminum trifluoride (AlF3);Aluminum fluoride(AlF3); |
EINECS: | 232-051-1 |
Density: | 3.1 g/mL at 25 °C(lit.) |
Melting Point: | 250 °C |
Boiling Point: | 19.5 °C at 760 mmHg |
Flash Point: | 1250 °C |
Solubility: | slightly soluble in Water |
Appearance: | white crystalline powder, odorless |
Hazard Symbols: |
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Risk Codes: | 22-36/37/38 |
Safety: | 26-37/39 |
PSA: | 0.00000 |
LogP: | -8.65050 |
Conditions | Yield |
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In neat (no solvent) plasma react. in inductively coupled tubular reactor, temp. of reactor exterior <=180°C, 200 mg of powdered precursor in alumina boat, power of 150-200 W, chamber pressure of 250 mTorr, NF3 flow rate of 10 sccm, reaction time of 10-20 min; X-ray diffraction anal.; EDX anal.; chem. anal.; | 99% |
sodium tetrahydroborate
aluminium trichloride
A
aluminum(III) fluoride
B
sodium chloride
C
diborane
Conditions | Yield |
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In further solvent(s) soln. NaBH4 in triglyme was added slowly for 2-3 h at room temp. to BF3-triglyme, AlCl3 in triglyme; B2H6 was absorbed with THF; | A n/a B n/a C 94% |
sodium tetrahydroborate
aluminium trichloride
A
aluminum(III) fluoride
B
sodium chloride
C
diborane
Conditions | Yield |
---|---|
In further solvent(s) soln. NaBH4 in triglyme was added slowly for 2-3 h at room temp. to BF3-tetraglyme, AlCl3 in triglyme; B2H6 was absorbed with THF; | A n/a B n/a C 94% |
sodium tetrahydroborate
sodium tetrafluoroborate
aluminium trichloride
A
aluminum(III) fluoride
B
sodium chloride
C
diborane
Conditions | Yield |
---|---|
In further solvent(s) soln. NaBH4 in triglyme (tetraglyme) was added slowly for 2-3 h at roomtemp. to NaBF4 and AlCl3 in triglyme (tetraglyme); B2H6 was absorbed with THF; | A n/a B n/a C 90% |
aluminium trichloride
boron trifluoride
A
aluminum(III) fluoride
B
boron trichloride
Conditions | Yield |
---|---|
heating with excess of BF3; condensation of BCl3 in an U-tube cooled the mixt. of CO2 and alcohol; fractionated distn.; | A n/a B 80% |
heating with excess of BF3; condensation of BCl3 in an U-tube cooled the mixt. of CO2 and alcohol; fractionated distn.; | A n/a B 80% |
Conditions | Yield |
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With aluminium In further solvent(s) byproducts: H2; heating at 320-330°C; | A n/a B 72% |
With Al In further solvent(s) byproducts: H2; heating at 320-330°C; | A n/a B 72% |
Conditions | Yield |
---|---|
In melt placing of mixt. of Al with SnF2 (molar ratio SnF2:Al=1.65) in Fluoroplast-4 ampule, closing by screwed stopper, exposition for 1.00 h at 250°C; various product ratio yields for various conditions; cooling, stirring up in water, collection, drying; | A 1.5% B n/a |
Chlorotrifluoroethylene
aluminium
A
aluminum(III) fluoride
B
chlorine
C
pyrographite
Conditions | Yield |
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In neat (no solvent) Ar atmosphere; mixing (mortar and pestle method), heating from room temp. to 1000°C (10 K/min); |
aluminum oxide
aluminum(III) fluoride
Conditions | Yield |
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With fluorine byproducts: O2; violent; | |
With hydrogenchloride; calcium fluoride In gas heating in HCl-stream; | |
With hydrogen fluoride In solid vaporous HF, white heat; | >99 |
Conditions | Yield |
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byproducts: H2O; from Al2O3 pellets in Ni tube at 720 K for 48 h; fluorination upto 70% F content; |
Molecular Structure of Aluminum fluoride (CAS NO.7784-18-1):
IUPAC Name: trifluoroalumane
CAS Number: 7784-18-1
Molecular Formula: AlF3
Molecular Weight:83.98
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 0 Å2
Flash Point: 1250°C
Enthalpy of Vaporization: 25.54 kJ/mol
Boiling Point: 19.5 °C at 760 mmHg
Vapour Pressure: 922 mmHg at 25°C
Melting Point: 250 oC
Water Solubility: Slightly soluble
Sensitive: Hygroscopic
Melting point: 250°C
Sublimation: 1250 ºC
Merck: 14,339
EINECS: 232-051-1
InChI
InChI=1/Al.3FH/h;3*1H/q+3;;;/p-3
Smiles
[Al](F)(F)F
Product Categories: Inorganics; Inorganic Fluorides; Aluminum Salts; AluminumMetal and Ceramic Science; Crystal Grade Inorganics; Metal and Ceramic Science; Salts
The production of Aluminum fluoride (CAS NO.7784-18-1):
Fluoride acid method will come from 18% in phosphate fluoride acid solution heated to about 78 ℃ , then add the reactor with aluminum hydroxide at 100 ℃ for the reaction of aluminum fluoride solution, centrifugation to remove hydrated silicic acid, the filtrate into the crystal device at 90 ℃ under the insulation 3 ~ 5h, have aluminum fluoride trihydrate (AIF3.3H2O) crystals.
After centrifugal separation, the aluminum fluoride trihydrate crystals (moisture 5%) has been dealing with two boiling furnace dehydrated, the first a boiling furnace temperature was controlled at about 205 ℃, first to remove most of the water.
As a result,aluminum fluoride trihydrate the total water content (including crystal water) from 45% to 6% or so, and then in the second fluidized bed furnace in the off the rest of the water, the furnace temperature was controlled at 590 ~ 600 ℃. Dehydrated materials are cooled, the system may anhydrous aluminum fluoride.
H2SiF6 +2 AI (OH) 3 → 2A1F3 + SiO2 +4 H2O
AlF3 . 3H2O [△] → AlF3 +3 H2O
France aluminum hydroxide aluminum hydroxide anhydrous hydrofluoric acid reacts with the aluminum fluoride trihydrate. Then crystallization, filtration, have aluminum fluoride trihydrate.At last by drying (burning) dehydration, obtained anhydrous aluminum fluoride.
AI (OH) 3 +3 HF → AIF3. 3 H2O
AlF3 . 3H2O [△] → A1F3 +3 H2O
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
frog | LDLo | subcutaneous | 1680mg/kg (1680mg/kg) | Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 124, Pg. 133, 1937. | |
mammal (species unspecified) | LD50 | intraperitoneal | 1450mg/kg (1450mg/kg) | Meditsina Truda i Promyshlennaya Ekologiya. Industrial Medicine and Ecology. Vol. (7), Pg. 32, 1994. | |
mouse | LD50 | oral | 103mg/kg (103mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 30(4), Pg. 16, 1965. |
Reported in EPA TSCA Inventory.
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.
Hazard Codes: Xn,
T,
Xi
Risk Statements: 22-36/37/38
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
RIDADR: 3260
WGK Germany: 1
RTECS: BD0725000
Hazard Note: Highly Toxic/Irritant
HazardClass: 8
PackingGroup: III
OSHA PEL: TWA 2.5 mg(F)/m3
ACGIH TLV: TWA 2.5 mg(F)/m3; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift; TWA 2 mg(Al)/m3
NIOSH REL: (Fluorides, Inorganic) TWA 2.5 mg(F)/m3
Aluminum fluoride , with CAS number of 7784-18-1, can be called Fluorid hlinity ; Aluminumfluoride (8CI) . It is a white powder, Aluminum fluoride (CAS NO.7784-18-1) can be flux for non-ferrous metals and can be used for the system to take other aluminum fluoride.