Purity 99.9-99.99 Ce Cerium Metal CAS 7440-45-1 For NiMH Batteries

Cerium (Ce): Primary Use in NiMH Batteries, Key Component in Specialty Alloys (Flints, Nodulizers)

Cerium is a gray, reactive metal with a density of 6.9 g/cm³ (tetragonal crystal) and 6.7 g/cm³ (hexagonal crystal). Its melting point is 795°C, and boiling point is 3443°C. Malleable and the most naturally abundant lanthanide, cerium emits sparks when bent.

Applications

1. Used in nickel-metal hydride (NiMH) batteries (primary application).
2. Manufacture of specialty alloys (e.g., lighter flints, nodulizers).

Product Series

Health and Safety Information

Signal Word	Danger
Hazard Statements	H228-H302-H312-H315-H319-H332-H335
Hazard Code	F, Xn
Precautionary Statements	P210-P231+P232-P280-P240-P241-P233-P370+P378c-P335+P334-P402+P404-P501a
Flash Point	N/A
Risk Code	11-20/21/22-36/37/38
Safety Statements	16-26-36/37/39
RTECS Number	N/A
Transport Information	UN 1333 4.1/PG 2
WGK Germany	3
GHS Pictogram

Packaging Specifications

• Standard packaging: 50 kg/drum, 500 kg/pallet, ton bags
• Sample packaging: 500 g/bag, 1 kg/bottle

Production Process
Cerium is separated from rare earth elements via ion exchange or solvent extraction, then reduced using lithium. The two-zone reactor combines reduction and distillation:

1. Anhydrous CeCl₃ is placed in the upper titanium crucible (distillation chamber).
2. 99.97% pure lithium is loaded into the lower crucible.
3. The reactor is vacuum-sealed (7 Pa) and heated to 1000°C.
4. CeCl₃ vapor reacts with lithium vapor; cerium collects in the lower crucible.
5. Post-reaction, LiCl is distilled to the upper chamber (~10-hour process).