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| CAS No.: | 1302-42-7 |
|---|---|
| Name: | Sodium aluminate |
| Molecular Structure: | |
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|
|
| Formula: | AlNaO2 |
| Molecular Weight: | 163.94 |
| Synonyms: | Amerfloc 2;Dynaflock;Granular clay;NaAlO2;Sodium metaaluminate;Aluminate,sodium;Natrium-Aluminat;Dynagrout;SodiumaluminatecaHO;Manfloc;sodiummetaaluminate;Sodium Aluminate; |
| EINECS: | 215-100-1 |
| Density: | 1.5 g/cm3 |
| Melting Point: | 1800°C |
| Appearance: | COA |
| Hazard Symbols: | R36/37/38:Irritating to eyes, respiratory system and skin.; |
| Risk Codes: | R36/37/38 |
| PSA: | 43.37000 |
| LogP: | -0.19980 |
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| Conditions | Yield |
|---|---|
| excess of Al2O3; at yellow heat in air; | 100% |
| at 1300°C, 3h; | |
| at white heat; | 0% |
- 1333-84-2, 1344-28-1
aluminum oxide
- 7631-99-4
sodium nitrate
A
- 1302-42-7
sodium aluminate
B
- 7697-37-2
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 |
- 1333-84-2, 1344-28-1
aluminum oxide
- 1302-42-7
sodium aluminate
| Conditions | Yield |
|---|---|
| With sodium carbonate byproducts: CO2; | |
| With sodium carbonate byproducts: CO2; excess of soda; |
- 1333-84-2, 1344-28-1
aluminum oxide
- 80937-33-3
oxygen
- 7647-14-5
sodium chloride
A
- 1302-42-7
sodium aluminate
B
- 7782-50-5
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; |
- 17341-25-2
sodium cation
B
- 1302-42-7
sodium aluminate
| Conditions | Yield |
|---|---|
| With water at 900°C; leaching with H2O or sulfides or chlorides; H2O vapor; |
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Specification
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+];