| Identification | Back Directory | [Name]
spodumene | [CAS]
66057-55-4 | [Synonyms]
spodumene
spodumenite
beta-Spodumene
Spodumene (alli(sio3)2)
12068-40-5 ((H2Sio3)aluminum.si salt) |
| Chemical Properties | Back Directory | [Appearance]
White, pale-green, emerald-green, pink,
or purple mineral; white streak; vitreous luster. Con-
tains up to 8% lithium oxide with some replace-
ment by sodium.Insoluble in acids.
| [Uses]
Source of lithium, in ceramics and glass as a
source of lithia and alumina.
| [CAS DataBase Reference]
66057-55-4 |
| Hazard Information | Back Directory | [Chemical Properties]
White, pale-green, emerald-green, pink,
or purple mineral; white streak; vitreous luster. Con-
tains up to 8% lithium oxide with some replace-
ment by sodium.Insoluble in acids.
|
| Questions And Answer | Back Directory | [Description]
Spodumene is the current principal commercial source of lithium for chemical manufacture and occurs in the greatest abundance of the four main lithium ores. It has a greater lithium content than either lepidolite or petalite. The chemical formula for spodumene is LiAlSi2O6. Theoretically it contains 3.75% lithium (8.04% lithia). The ore is concentrated by a flotation process to yield a product with 2.8-3.3% lithium (6-7% lithia), since it normally occurs mixed with other minerals. Large spodumene deposits are found in the United States, Canada, Brazil, Argentina, the USSR, Spain and the Congo.
Spodumene, a monoclinic pyroxene, may be thought to have a structure of -S1O3- chains bonded together by lithium and aluminum ions4 . When α-spodumene, the naturally occurring mineral, is heated to about 1000°C, an irreversible phase transition occurs to yield β-spodumene. The phase transformation is accompanied by a large increase in volume. The density of a-spodumene is about 3.2 g c m-3 ; that of β-spodumene about 2.4 g cm-3.
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| Company Name: |
Gelest, Inc.
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| Tel: |
(215)-547-1015 |
| Website: |
www.gelest.com |
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