7784-16-9

Basic information

• Product Name: SODIUM TETRACHLOROALUMINATE
• Synonyms: aluminium sodium tetrachloride;Sodium chloroaluminate;SODIUM TETRACHLOROALUMINATE, ANHYDROUS, POWDER, 99.99%;sodium tetrachloroaluminate(III);CalciuM whiskers;Sodium tetrachloroaluminate 98%;Sodium tetrachloroaluminate anhydrous, powder, 99.99% trace metals basis;Aluminate(1-), tetrachloro-, sodium, (T-4)-
• CAS NO: 7784-16-9
• Molecular Formula: AlCl₄*Na
• Molecular Weight: 191.78
• EINECS: 232-050-6
• Product Categories: AluminumMetal and Ceramic Science;Catalysis and Inorganic Chemistry;Chemical Synthesis;Salts;Sodium Salts
• Mol File: 7784-16-9.mol
• Article Data: 6

Chemical Properties

• Melting Point: 185 °C(lit.)
• Appearance: Pale yellow/powder
• Density: 2.01 g/mL at 25 °C(lit.)
• Water Solubility: Soluble in water
• Sensitive: Moisture Sensitive
• Merck: 14,8687
• CAS DataBase Reference: SODIUM TETRACHLOROALUMINATE(CAS DataBase Reference)
• NIST Chemistry Reference: SODIUM TETRACHLOROALUMINATE(7784-16-9)
• EPA Substance Registry System: SODIUM TETRACHLOROALUMINATE(7784-16-9)

Safety Data

• Hazard Codes: C
• Statements: 14-34
• Safety Statements: 22-26-27-36/37/39-45
• RIDADR: UN 3262 8/PG 2
• WGK Germany: 3
• HazardClass: 8
• PackingGroup: III
• Hazardous Substances Data: 7784-16-9(Hazardous Substances Data)

Usage

Chemical Properties

yellow hygroscopic powder(s); used as a catalyst for organic reactions [CRC10] [HAW93]

Uses

Sodium tetrachloroaluminate is used as Friedel-Crafts acylating agent , dehydrating and dehydrogenating agent in organic synthesis.

Definition

A water-soluble pow- der used as catalyst in organic reactions.

InChI:InChI=1/Al.4ClH.Na/h;4*1H;/q+3;;;;;+1/p-4/rAlCl4.Na/c2-1(3,4)5;/q-1;+1

Synthetic route

sodium chloride (7647-14-5) → sodium tetrachloroaluminate (7784-16-9)

Conditions	Yield
With aluminium trichloride
With hydrogenchloride; aluminum oxide In melt melt of NaCl in graphite crucible; Al2O3 tube affected;

aluminium trichloride (7446-70-0) → sodium tetrachloroaluminate (7784-16-9) + aluminium (7429-90-5)

Conditions	Yield
With sodium In neat (no solvent) passing excess AlCl3 vapor over Na in a iron tube at 200-300°C;completion of the reaction by heating the mixture of Al and NaAlCl3 in pots of clay or cast iron until beginning vaporization of NaAlCl3;; removal and melting of Al balls;;
With Na In neat (no solvent) passing excess AlCl3 vapor over Na in a iron tube at 200-300°C;completion of the reaction by heating the mixture of Al and NaAlCl3 in pots of clay or cast iron until beginning vaporization of NaAlCl3;; removal and melting of Al balls;;

aluminium (7429-90-5) + sodium chloride (7647-14-5) → sodium tetrachloroaluminate (7784-16-9)

Conditions	Yield
In not given

aluminium trichloride (7446-70-0) + sodium chloride (7647-14-5) → sodium tetrachloroaluminate (7784-16-9)

Conditions	Yield
In neat (no solvent) drybox and vac. line techniques; fused together in an ampoule; recrystd., decanted, zone-refining;
pre-electrolysis and filtration;
In neat (no solvent, solid phase) stoich. quant. of AlCl3 and NaCl (previously fused at 1023 K) were fused together under Ar;

aluminium trichloride (7446-70-0) → sodium tetrachloroaluminate (7784-16-9)

Conditions	Yield
With NaCl In melt AlCl3/NaCl melt (170-240°C), NaCl satd.;

tetrachlorosilane (10026-04-7, 53609-55-5) + NaY zeolite → sodium tetrachloroaluminate (7784-16-9) + Na2(AlO2)2(SiO2)190

Conditions	Yield
byproducts: NaCl, AlCl3; Under N2, the dehydrated zeolite is heated in a flow of a SiCl4 and N2 mixt. for 1 h at 450°C.; Flushing for addnl. 2 h at the same temp. to remove excess SiCl4 and volatile AlCl3, cooling to room temp., washing with deionized water, ion exchange with NH4Cl; detn. of Si/Al ratio by IR, (29)Si-, (27)Al-NMR and X-ray diffraction.;

tetrachlorosilane (10026-04-7, 53609-55-5) + NaY zeolite → sodium tetrachloroaluminate (7784-16-9) + Na5(AlO2)5(SiO2)187

Conditions	Yield
byproducts: NaCl, AlCl3; Under N2, the dehydrated zeolite is heated in a flow of a SiCl4 and N2 mixt. for 1 h at 375°C.; Flushing for addnl. 2 h at the same temp. to remove excess SiCl4 and volatile AlCl3, cooling to room temp., washing with deionized water, ion exchange with NH4Cl; detn. of Si/Al ratio by IR, (29)Si-, (27)Al-NMR and X-ray diffraction.;

tetrachlorosilane (10026-04-7, 53609-55-5) + NaY zeolite → sodium tetrachloroaluminate (7784-16-9) + Na24(AlO2)24(SiO2)168

Conditions	Yield
byproducts: NaCl, AlCl3; Under N2, the dehydrated zeolite is heated in a flow of a SiCl4 and N2 mixt. for 1 h at 300°C.; Flushing for addnl. 2 h at the same temp. to remove excess SiCl4 and volatile AlCl3, cooling to room temp., washing with deionized water, ion exchange with NH4Cl; detn. of Si/Al ratio by IR, (29)Si-, (27)Al-NMR and X-ray diffraction.;

tetrachlorosilane (10026-04-7, 53609-55-5) + NaY zeolite → sodium tetrachloroaluminate (7784-16-9) + Na20(AlO2)20(SiO2)172

Conditions	Yield
byproducts: NaCl, AlCl3; Under N2, the dehydrated zeolite is heated in a flow of a SiCl4 and N2 mixt. for 1 h at 350°C.; Flushing for addnl. 2 h at the same temp. to remove excess SiCl4 and volatile AlCl3, cooling to room temp., washing with deionized water, ion exchange with NH4Cl; detn. of Si/Al ratio by IR, (29)Si-, (27)Al-NMR and X-ray diffraction.;

tetrachlorosilane (10026-04-7, 53609-55-5) + NaY zeolite → sodium tetrachloroaluminate (7784-16-9) + Na26(AlO2)26(SiO2)166

Conditions	Yield
byproducts: NaCl, AlCl3; Under N2, the dehydrated zeolite is heated in a flow of a SiCl4 and N2 mixt. for 1 h at 250°C.; Flushing for addnl. 2 h at the same temp. to remove excess SiCl4 and volatile AlCl3, cooling to room temp., washing with deionized water, ion exchange with NH4Cl; detn. of Si/Al ratio by IR, (29)Si-, (27)Al-NMR and X-ray diffraction.;

tetrachlorosilane (10026-04-7, 53609-55-5) + NaY zeolite → sodium tetrachloroaluminate (7784-16-9) + Na32(AlO2)32(SiO2)160

Conditions	Yield
byproducts: NaCl, AlCl3; Under N2, the dehydrated zeolite is heated in a flow of a SiCl4 and N2 mixt. for 1 h at 200°C.; Flushing for addnl. 2 h at the same temp. to remove excess SiCl4 and volatile AlCl3, cooling to room temp., washing with deionized water, ion exchange with NH4Cl; detn. of Si/Al ratio by IR, (29)Si-, (27)Al-NMR and X-ray diffraction.;

aluminium trichloride (7446-70-0) + Na(1+)*NbCl6(1-)=NaNbCl6 (16920-10-8) → sodium tetrachloroaluminate (7784-16-9) + niobium pentachloride (10026-12-7)

Conditions	Yield
In not given

aluminium trichloride (7446-70-0) + sodium tantalum hexachloride (16920-14-2) → sodium tetrachloroaluminate (7784-16-9) + tantalum pentachloride (7721-01-9)

aluminium trichloride (7446-70-0) + sodium tri-tert-butylsilanide (103349-41-3) → sodium tetrachloroaluminate (7784-16-9) + supersilylaluminium dichloride, dimer

Conditions	Yield
In benzene-d6 (inert conditions); heating for 1 week;

sodium tetrachloroaluminate (7784-16-9) + 2-(difluorochloromethyl)-6-(fluoro-dichloromethyl)-chlorobenzene (63580-87-0) → 1-trifluoromethyl-2-chloro-3-trichloromethyl-benzene (63430-03-5)

sodium tetrachloroaluminate (7784-16-9) + sulfur trioxide (7446-11-9) → Na(1+)*Al(3+)*4(SO3Cl)(1-)=NaAl(SO3Cl)4

Conditions	Yield
In liquid sulphur dioxide -15°C;

niobium(V) oxide + sodium tetrachloroaluminate (7784-16-9) → niobium(V) oxide chloride (13597-20-1)

Conditions	Yield
In gaseous matrix Kinetics; heating mixture of NaAlCl4 and Nb2O5 (annealed at 400°C, fine powdered) in stream of Ar at 350°C;;
In melt byproducts: AlOCl, NaCl; Nb2O5 and molten NaAlCl4 below 600°C;;
In neat (no solvent) 275-450°C;;

cryolite + sodium tetrachloroaluminate (7784-16-9) → aluminium (7429-90-5)

Conditions	Yield
With sodium In neat (no solvent) by bringing a mixture of powdered NaAlCl3 and Na3AlF6 with pieces of Na (ratio=10:5:2) into a warm furnace; violent reaction, mass and furnace getting white-hot, for completion of reaction further heating;; tapping, Al flows out in liquid slag; yields Al pieces of 6-8 kg;;
With Na In neat (no solvent) by bringing a mixture of powdered NaAlCl3 and Na3AlF6 with pieces of Na (ratio=10:5:2) into a warm furnace; violent reaction, mass and furnace getting white-hot, for completion of reaction further heating;; tapping, Al flows out in liquid slag; yields Al pieces of 6-8 kg;;

sodium tetrachloroaluminate (7784-16-9) → aluminium (7429-90-5)

Conditions	Yield
In neat (no solvent) reduction with sodium potassium alloy;;
With sodium In neat (no solvent) by heating a mixture of NaAlCl3 and Na using CaF2 as flux;; Al castings;;
With sodium In neat (no solvent) by heating a mixture of NaAlCl3 and Na using Na3AlF6 as flux;; Al casting;;

sodium tetrachloroaluminate (7784-16-9) + uranium(IV) tetrafluoride (10049-14-6) → uranium(IV) chloride (10026-10-5)

sodium tetrachloroaluminate (7784-16-9) + carbonylgold(I) chloride (50960-82-2) → sodium tetrachloroaurate(III)

Conditions	Yield
In thionyl chloride

sodium tetrachloroaluminate (7784-16-9) → tetrafluoroaluminate(1-) + AlClF3(1-) (108528-94-5) + AlCl2F2(1-) (109144-15-2) + AlCl3F(1-) (109144-16-3)

Conditions	Yield
With NaF In further solvent(s) byproducts: NaCl; dissolved in molten NaF at 820 ° C (ratio F:Al = 3.0); product ratio detd. by Raman spectroscopy;

sodium tetrachloroaluminate (7784-16-9) → tetrafluoroaluminate(1-) + AlClF3(1-) (108528-94-5) + AlCl2F2(1-) (109144-15-2) + AlCl3F(1-) (109144-16-3) + tetrachloroaluminate(1-)

Conditions	Yield
With LiCl; NaF In further solvent(s) byproducts: NaCl; various amounts dissolved in 80 mol-% LiCl and 20 mol-% NaF (temp. >490 ° C);
With NaF In further solvent(s) byproducts: NaCl; dissolved in molten NaF at 820 ° C, various amounts of NaAlCl4 (ratio F:Al = 2.0 or 2.5); product ratio detd. by Raman spectroscopy;

sodium tetrachloroaluminate (7784-16-9) → AlClF3(1-) (108528-94-5) + AlCl2F2(1-) (109144-15-2) + AlCl3F(1-) (109144-16-3) + tetrachloroaluminate(1-)

Conditions	Yield
With NaF In further solvent(s) byproducts: NaCl; dissolved in molten NaF at 820 ° C (ratio F:Al = 1.44); product ratio detd. by Raman spectroscopy;

sodium tetrachloroaluminate (7784-16-9) → AlCl2F2(1-) (109144-15-2) + AlCl3F(1-) (109144-16-3)

Conditions	Yield
With NaCl; NaF In further solvent(s) various amounts dissolved in 60 mol-% NaCl and 40 mol-% NaF (820 ° C);

sodium tetrachloroaluminate (7784-16-9) → AlCl2F2(1-) (109144-15-2) + AlCl3F(1-) (109144-16-3) + tetrachloroaluminate(1-)

Conditions	Yield
With NaF In further solvent(s) byproducts: NaCl; dissolved in molten NaF at 820 ° C (ratio F:Al = 0.99); product ratio detd. by Raman spectroscopy;

sodium tetrachloroaluminate (7784-16-9) + sulfuric acid (7664-93-9) → sodium aluminum hydrosulfate

Conditions	Yield
In neat (no solvent) 100% H2SO4; 100°C; several days at 80°C;
In liquid sulphur dioxide molar ratio H2SO4 : NaAlCl4 = 4:1;

Upstream product

• 7647-14-5 sodium chloride 
• 7446-70-0 aluminium trichloride 
• 10026-04-7 tetrachlorosilane 
• 16920-10-8 Na⁽¹⁺⁾*NbCl₆^(1-)=NaNbCl₆ 
• 16920-14-2 sodium tantalum hexachloride 
• 103349-41-3 sodium tri-tert-butylsilanide 
• 7429-90-5 aluminium 

Downstream Products

• 13597-20-1 niobium(V) oxide chloride 
• 7429-90-5 aluminium 
• 10026-10-5 uranium(IV) chloride 
• 21340-02-3 tetrafluoroaluminate^(1-) 
• 108528-94-5 AlClF₃^(1-) 
• 109144-15-2 AlCl₂F₂^(1-) 
• 109144-16-3 AlCl₃F^(1-) 
• 63430-03-5 1-trifluoromethyl-2-chloro-3-trichloromethyl-benzene 

Relevant articles and documents

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