OREAS 190

Reference material OREAS 190 is one of a suite of thirteen nickel laterite CRMs (OREAS 182 to OREAS 195) prepared from transitional ore source materials. These were supplied by Anglo American Brazil Limitada from the Codemin Nickel Mine located in the state of Goiás and ~300 kms from the port of Santos, Brazil. It has been certified for Ni, Co, Al2O3, C, CaO, Cl, Cu, Cr2O3, Fe2O3, K2O, MgO, MnO, Na2O, P2O5, SiO2, S, SO3, TiO2 , Zn and LOI. Nineteen commercial analytical laboratories participated in the certification program with characterization of this suite of 20 analytes by the following methods:

  • Ni, Co, Al2O3, CaO, Cl, Cu, Cr2O3, Fe2O3, K2O, MgO, MnO, Na2O, P2O5, SiO2, SO3, TiO2 and Zn by lithium borate fusion with X-ray fluorescence (17 laboratories)
  • Ni, Co, Al2O3, CaO, Cu, Cr2O3, Fe2O3, K2O, MgO, MnO, Na2O, P2O5, SiO2, SO3, TiO2 and Zn by lithium borate or sodium peroxide fusion with ICP-OES (12 laboratories)
  • carbon and sulphur by infra-red combustion furnace (11 laboratories)
  • loss on ignition (LOI) at 1000°C (18 laboratories)
Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
Ni, Nickel (wt.%) 1.64 0.012 1.62 1.65 Borate Fusion XRF
Co, Cobalt (ppm) 890 15 875 905 Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 35.48 0.149 35.31 35.64 Borate Fusion XRF
Al2O3, Aluminium(III) oxide (wt.%) 6.00 0.046 5.97 6.03 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 0.133 0.004 0.128 0.138 Borate Fusion XRF
Cr2O3, Chromium(III) oxide (ppm) 17260 158 17141 17379 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 6.91 0.058 6.88 6.94 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.577 0.005 0.573 0.582 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 38.22 0.167 38.06 38.38 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.064 0.004 0.062 0.066 Borate Fusion XRF
Zn, Zinc (ppm) 353 14 341 364 Borate Fusion XRF
Al2O3, Aluminium(III) oxide (wt.%) 5.86 0.106 5.76 5.95 Borate / Peroxide Fusion ICP
CaO, Calcium oxide (wt.%) 0.133 0.017 0.114 0.153 Borate / Peroxide Fusion ICP
Co, Cobalt (ppm) 874 45 857 892 Borate / Peroxide Fusion ICP
Cr2O3, Chromium(III) oxide (ppm) 17120 449 16895 17345 Borate / Peroxide Fusion ICP
Cu, Copper (ppm) 68 10 63 73 Borate / Peroxide Fusion ICP
Fe2O3, Iron(III) oxide (wt.%) 35.40 0.722 34.83 35.98 Borate / Peroxide Fusion ICP
MgO, Magnesium oxide (wt.%) 6.85 0.184 6.77 6.93 Borate / Peroxide Fusion ICP
MnO, Manganese oxide (wt.%) 0.574 0.015 0.564 0.584 Borate / Peroxide Fusion ICP
Ni, Nickel (wt.%) 1.62 0.028 1.60 1.65 Borate / Peroxide Fusion ICP
SiO2, Silicon dioxide (wt.%) 38.05 0.710 37.54 38.56 Borate / Peroxide Fusion ICP
TiO2, Titanium dioxide (wt.%) 0.062 0.003 0.058 0.066 Borate / Peroxide Fusion ICP
Zn, Zinc (ppm) 327 35 287 368 Borate / Peroxide Fusion ICP
LOI1000, Loss on ignition @1000°C (wt.%) 8.38 0.164 8.14 8.62 Thermogravimetry
C, Carbon (wt.%) 0.065 0.008 0.055 0.075 Infrared Combustion
Downloads
Certificate DataPack SDS NRAM (221 KB)
Add to cart
Pricing
  • 10g Sachet
    $3.15
  • 1Kg Jar
    $230.00
Specifications
CRM Group