OTIC Responsible Tantalum Supply Chain Due Diligence Report for 2019

Tantalum series

Ta2O5

Physical Properties:The product are white crystalline powder As amphoteric oxide, insoluble in water, slightly soluble in hydrofluoric acid, insoluble in inorganic acid except for hydrofluoric acid, soluble in fused NaOH、KOH、K2S2O7 and KHSO4 Applicati

Packing:Inner with double-layer plastic bags and outer with steel drums, or inner with aluminum foil bags and outer with cartons.
Chemical Composition:Commercial-grade Ta2O5 : In accordance with  YS/T 427-2000.

Impurities Concentrations(%,≤)
FTa2O5-1 FTa2O5-2 FTa2O5-3
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 0.1 0.15
L.O.I (%) 0.2 0.3 0.4

 
 
4-2、High-purity Ta2O5 : In accordance with YS/T 547-2007.

Impurities Concentrations(%,≤)
FTa2O5-045 FTa2O5-04 FTa2O5-035
Nb 0.0015 0.003 0.008
Al 0.0003 0.0005 0.001
B 0.0001 - -
Bi 0.0001 - -
Cr 0.0001 0.0003 0.001
Cu 0.0003 0.0005 0.001
F 0.0030 0.007 0.015
Fe 0.0003 0.0005 0.001
Mn 0.0001 0.0003 0.0005
Mo 0.0003 0.0005 0.001
Ni 0.0001 0.0003 0.001
Pb 0.0003 - -
Si 0.0007 0.0013 0.005
Sn 0.0001 0.0003 0.0005
Ti 0.0001 0.0003 0.0005
W 0.0003 0.0005 0.001





















Note: Each batch of product provided shall be attached with a L.O.I value report actually measured at condition of ignition at 850℃ for one hour.4

See related services