Conditions | Yield |
---|---|
excess of Al2O3; at yellow heat in air; | 100% |
at 1300°C, 3h; | |
at white heat; | 0% |
aluminum oxide
sodium nitrate
A
sodium aluminate
B
nitric acid
Conditions | Yield |
---|---|
heating; it attacks vessel of iron or platinum and glass or china; | A n/a B 89% |
Conditions | Yield |
---|---|
With water at 600-800°C, 40 min; NaCl pastille; bad results with bauxite; H2O vap.; | 80% |
In neat (no solvent) heating of the mixture in presence of H2O;; | |
In neat (no solvent) heating of the mixture in presence of H2O;; |
Conditions | Yield |
---|---|
In neat (no solvent) heating a mixture of crystd. Al(OH)3 and Na2CO3 to at least 950°C; quantitative react. only at even higher temps.;; | 50% |
In neat (no solvent) heating a mixture of crystd. Al(OH)3 and Na2CO3 to at least 950°C; quantitative react. only at even higher temps.;; | 50% |
In neat (no solvent) heating a mixture of Al(OH)3 (gel or bauxite) and Na2CO3 to at least 950°C;; | >99 |
In neat (no solvent) heating a mixture of Al(OH)3 (gel or bauxite) and Na2CO3 to at least 950°C;; | >99 |
aluminum oxide
sodium aluminate
Conditions | Yield |
---|---|
With sodium carbonate byproducts: CO2; | |
With sodium carbonate byproducts: CO2; excess of soda; |
aluminum oxide
oxygen
sodium chloride
A
sodium aluminate
B
chlorine
Conditions | Yield |
---|---|
in absence of S; | |
in absence of S; |
Conditions | Yield |
---|---|
at 800 - 850°C; | |
at 800 - 850°C; |
Conditions | Yield |
---|---|
boiling with K2CO3; sintering with chalk; |
sodium cation
B
sodium aluminate
Conditions | Yield |
---|---|
With water at 900°C; leaching with H2O or sulfides or chlorides; H2O vapor; |
sodium chloride
A
hydrogenchloride
B
sodium aluminate
D
sulfur trioxide
Conditions | Yield |
---|---|
With water heating; | |
With water heating; |
aluminum oxide
water
sodium chloride
sodium aluminate
Conditions | Yield |
---|---|
With sulfuric acid excess of H2O vapor; | |
With sulfuric acid excess of H2O vapor; |
aluminum oxide
sodium chloride
A
hydrogenchloride
B
sodium aluminate
Conditions | Yield |
---|---|
With water 1000°C; |
Conditions | Yield |
---|---|
byproducts: Cl; |
aluminum oxide
kieserite
sodium chloride
sodium aluminate
aluminum oxide
pyrographite
sodium chloride
A
hydrogenchloride
B
sodium aluminate
Conditions | Yield |
---|---|
With water byproducts: HCl; warming; H2O vap.; | |
With water byproducts: HCl; warming; H2O vap.; |
Conditions | Yield |
---|---|
In neat (no solvent) heating a mixture of Al2O3 and Na2CO3 (ratio=1:1 or slight excess of Al2O3) at 1100-1200°C;; | |
In neat (no solvent) byproducts: CO2; calcination of Al2O3 and Na2CO3 (ratio=1:1);; | |
In neat (no solvent) byproducts: CO2; calcination of Al2O3 with excess Na2CO3;; |
aluminum oxide
calcium carbonate
sodium sulfate
sodium aluminate
Conditions | Yield |
---|---|
With water at 1100°C in helical tube-still; H2O vapor or other gases; |
Conditions | Yield |
---|---|
byproducts: SO2; heating; |
water
pyrographite
sodium chloride
A
hydrogenchloride
B
sodium aluminate
Conditions | Yield |
---|---|
heating; | |
heating; |
Conditions | Yield |
---|---|
heating; reactn. with gas black pitch; |
Conditions | Yield |
---|---|
With sodium sulfate with sodium aluminate; |
Conditions | Yield |
---|---|
With water byproducts: BaSO4; heating at 3.5 atm; |
B
sodium aluminate
Conditions | Yield |
---|---|
With water heating at 3.5 atm; | |
heating at 3.5 atm; |
iron
pyrographite
sodium chloride
A
sodium aluminate
B
hydrogen sulfide
Conditions | Yield |
---|---|
heating; at red heat; H2O vapor; |
Conditions | Yield |
---|---|
With water heating; H2O vapor; | |
With water heating; H2O vapor; |
hydrogenchloride
sulfuric acid
pyrographite
sodium chloride
B
sodium aluminate
C
sodium carbonate
Conditions | Yield |
---|---|
evapn.; decompn. with carbon in helical tube-still; at 700°C; at 1000°C; |
sulfuric acid
pyrographite
sodium chloride
B
sodium aluminate
C
sodium carbonate
Conditions | Yield |
---|---|
evapn.; decompn. of soln. with carbon in helical tube-still; at 700°C; then at 1000°C; |
sulfuric acid
pyrographite
sodium chloride
B
sodium aluminate
C
sodium carbonate
Conditions | Yield |
---|---|
evapn.; decompn. with carbon in helical tube-still; at 700°C; at 1000°C; |
Conditions | Yield |
---|---|
With sodium hydroxide; carbon dioxide pptn.; | |
With sodium hydroxide; carbon dioxide pptn.; |
sodium aluminate
aluminum oxide
Conditions | Yield |
---|---|
With chlorine byproducts: NaCl, O2; red glowing; |
Conditions | Yield |
---|---|
With iron; aluminium In neat (no solvent) heating the mixture to 1000-1100°C;; |
sodium aluminate
Conditions | Yield |
---|---|
Electrolysis; |
Conditions | Yield |
---|---|
standing more days; | |
standing more days; |
Conditions | Yield |
---|---|
pptn.; | |
pptn., filtration; |
Conditions | Yield |
---|---|
pptn.; |
Conditions | Yield |
---|---|
pptn.; |
Conditions | Yield |
---|---|
standing more days; | |
standing more days; |
Sodium aluminate is an important commercial inorganic chemical. Pure sodium aluminate (anhydrous) is a white crystalline solid having a formula variously given as NaAlO2, NaAl(OH)4 (hydrated), Na2O·Al2O3, or Na2Al2O4. With the CAS NO. 1302-42-7, it is also called Aluminate (AlO21-), sodium; Aluminate (AlO21-), sodium; aluminate(alo2(1-)),sodium; aluminate(alo21-),sodium; Aluminate,sodium; aluminumsodiumoxide(al2na2o4); aluminumsodiumoxide(alnao2). Sodium aluminate is an important commercial inorganic chemical. It works as an effective source of aluminium hydroxide for many industrial and technical applications.
Preparation of Sodium aluminate: Sodium aluminate is manufactured by the dissolution of- aluminium hydroxide in a caustic soda (NaOH) solution. Aluminium hydroxide (gibbsite) can be dissolved in 20–25% aqueous NaOH solution at a temperature near the boiling point.
Sodium aluminate is also formed by the action of sodium hydroxide on elemental aluminium which is an amphoteric metal. The reaction is highly exothermic once established and is accompanied by the rapid evolution of hydrogen gas. The reaction is sometimes written as:
2 Al + 2 NaOH + 2 H2O → 2 NaAlO2 + 3 H2
Uses of Sodium aluminate: In water treatment it is used as an adjunct to water softening systems, as a coagulant aid to improve flocculation, and for removing dissolved silica and phosphates. In construction technology, sodium aluminate is employed to accelerate the solidification of concrete, mainly when working during frost. Sodium aluminate is also used in the paper industry, for fire brick production, alumina production and so forth.
Sodium aluminate solutions are intermediates in the production of zeolites.
You can still convert the following datas into molecular structure:
(1)InChI=1S/Al.Na.2O/q-1;+1;;;
(2)InChIKey=IYJYQHRNMMNLRH-UHFFFAOYSA-N;
(3)Smiles[Al-](=O)=O.[Na+];
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