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8 - Nickel Laterite

Prior to fusion, the loss on ignition (LOI), which includes H2O+, CO2, S and other volatiles, is determined from the weight loss after roasting the sample. The fusion disk is made by mixing the roasted sample with a combination of lithium metaborate and lithium tetraborate. Samples are fused in Pt crucibles using an automated crucible fluxer and automatically poured into Pt molds for casting. Samples are analyzed on a Panalytical Axios Advanced wavelength dispersive XRF.

 

Code 8 – Nickel Laterite  Major oxides (%)

Element

Detection Limit

Element

Detection Limit

Al2O3

0.01

MnO

0.001

CaO

0.01

Na2O

0.01

Cr2O3

0.01

NiO

0.003

Co3O4

0.005

P2O5

0.01

CuO

0.005

SiO2

0.01

Fe2O3

0.01

TiO2

0.01

K2O

0.01

V2O5

0.003

MgO

0.01

LOI 

0.01



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