Position:China Rare Earth Network>Rare Earth standards>Praseodymium of low chloric carbonic acid
Praseodymium of low chloric carbonic acid
From;  Author:Stand originally

Chemical type Formula:PR2(CO3(CO3

The element measures Mol.wt.461.8

Norms Specification:

Brand

PC-2NL

TREO Min % of gross of rare earth oxide

45-55

Pr6O11/ TREO Min %

99

Relative RE-impurities Max% of rare earth impurity

La203 / TREO

Total

1.0

CeO2/ TREO

Nd2O3/ TREO

Sm2O3/ TREO

Y2O3/ TREO

Be not Non-RE-impurities Max% of rare earth impurity

Fe2O3

0.02

SiO2

0.02

CaO

0.015

Na2O

0.05

Cl-

0.01

SO42-

0.1

Acid non-soluble substance

0.5

Explain: Reseda powder, not dissolve at water, dissolve at acid.

Utility: The important raw material of the other compound of production oxidation praseodymium and praseodymium.