China High quality 3.5N 4N White crystalline powder Cerium Oxalate

Code

CAS-3.5N      

CAS-4N

TREO %

≥46.0

≥46.0

Cerium purity and relative rare earth impurities

CeO₂/TREO %

≥99.95

≥99.99

La₂O₃/TREO %

<0.03

<0.004

Pr₆O₁₁/TREO %

<0.01

<0.002

Nd₂O₃/TREO %

<0.01

<0.002

Sm₂O₃/TREO %

<0.005

<0.001

Y₂O₃/TREO %

<0.005

<0.001

Non rare earth impurity

Ca %

<0.005

<0.002

Fe%

<0.005

<0.002

Na %

<0.005

<0.002

K %

<0.002

<0.001

Pb %

<0.002

<0.001

Cl^- %

<0.005

<0.005

SO _{2 4}^- %

<0.03

<0.03

Description: White crystalline powder, insoluble in water, Soluble in dilute sulfuric acid and hydrochloric acid.

Uses: Used as chemical reagent to prepare other cerium salts.

Used in pharmaceutical industry and separation of cerium group metal elements.