| Identification | Back Directory | [Name]
BERYLLIUM SILICATE | [CAS]
15191-85-2 | [Synonyms]
Be2SiO4
Phenacite
Phenakite
Phenazite
Orthosilicate
berylliumsilicicacid
Beryllium silicic acid
berylliumorthosilicate
Beryllium orthosilicate
silicicacid,berylliumsalt
berylliumsilicate(be2sio4)
Silicic acid, beryllium salt
Silicic acid diberyllium salt
berylliumsiliconoxide(be2sio4)
Silicic acid (H4-SiO4), beryllium salt (1:2) | [EINECS(EC#)]
239-251-8 | [Molecular Formula]
H4O4Si | [MDL Number]
MFCD01941647 | [MOL File]
15191-85-2.mol | [Molecular Weight]
96.1149 |
| Safety Data | Back Directory | [Safety Profile]
Confirmed carcinogen with experimental carcinogenic and tumorigenic data. When heated to decomposition it emits toxic fumes of BeO See also BERYLLIUM COMPOUNDS and SILICATES. |
| Hazard Information | Back Directory | [Description]
Phenacite is found in high-temperature pegmatite
veins and is associated with quartz, chrysoberyl and topaz. It has long been known from the Chrysoberyl
mine on the Takovaya stream in Russia, where large
crystals occur in mica-schist. It is also found with topaz
and amazon stone in Colorado and Maine, USA. Large
crystals of prismatic habit have been found in a Norway.
The structure consists of
a three-dimensional network of corner-linked, slightly
distorted BeO4 and fairly regular SiO4 tetrahedra. The
lattice of these materials consists of SiO4 and BeO4 tetrahedra,
which are bound to each other and form chains
oriented along the principal crystallo-graphic axis C3.
The chains form voids in the form of wide channels
～4.5? in diameter. |
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