Description
Physical properties:
white powdery crystals, amphoteric oxide, hardly soluble in water, slightly soluble in hydrofluoric acid, hardly soluble in inorganic acids other than hydrofluoric acid, soluble in molten NaOH, KOH, K2S207, KHSO4.
Packing:
double-layer plastic packaging in outer iron drum, or inner aluminum foil bag and outer carton packaging.
Industrial tantalum pentoxide implements industry standard YS/T427-2000
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Impurities
element
|
Impurity elements (%, ≤)
|
||
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FTa 2 O 5 -1
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FTa 2 O 5 -2
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FTa 2 O 5 -3
|
|
|
Nb
|
0.003
|
0.02
|
0.2
|
|
Ti
|
0.001
|
0.002
|
0.005
|
|
W
|
0.001
|
0.003
|
–
|
|
Mo
|
0.001
|
0.002
|
0.005
|
|
Cr
|
0.001
|
0.003
|
–
|
|
Mn
|
0.001
|
0.002
|
0.005
|
|
Fe
|
0.004
|
0.01
|
0.03
|
|
Ni
|
0.002
|
0.005
|
–
|
|
Cu
|
0.002
|
0.005
|
–
|
|
Al
|
0.002
|
0.002
|
0.01
|
|
Si
|
0.003
|
0.01
|
0.02
|
|
F-
|
0.05
|
0.10
|
0.15
|
|
L.O.I (%)
|
0.2
|
0.3
|
0.4
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