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Purity 99.99% Lanthanum Oxide La2O3 CAS No.1312-81-8 White Powder

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Mat No.10001003 Rare Earth Oxides Lanthanum Oxide La2O3 CAS No.1312-81-8 Purity≥99.99% White Powder

Basic information of Lanthanum Oxide

Synonyms LANTHANUM OXIDE ; LANTHANUM(III) OXIDE ; LANTHANUM(+3)OXIDE ; dilanthanumoxide ; dilanthanumtrioxide ; Lanthana ; lanthania(la2o3) ; lanthanumoxide(la2o3)
CAS No. 1312-81-8
Molecular formula La2O3
Molecular weight 325.81
EINECS number 215-200-5

Lanthanum Oxide properties

Melting point 2315 °C
Boiling point 4200 °C
Density 6.51 g/mL at 25 °C(lit.)
Flash point 4200°C
Storage conditions no restrictions
form nanopowder
colour White to yellow
proportion 6.51
PH value 9.0 (50g/l, H2O, 20℃)(slurry)
Water solubility insoluble
Sensitivity Hygroscopic
Merck 14,5363

Lanthanum Oxid use and synthesis method

Chemical nature

Lanthanum oxide is an oxide of lanthanum (III) and is a white powder at room temperature.

White orthorhombic or amorphous powder. It is soluble in acid, ethanol, ammonium chloride, but insoluble in water and ketones.


Used to make special alloys, optical glass, refractory materials, etc.

Mainly used to manufacture precision optical glass and optical fiber. It is also used in the electronics industry as ceramic capacitors and piezoelectric ceramic dopants. It is also used as a raw material for lanthanum boride and a catalyst for petroleum separation and refining.

Used as analytical reagent, raw material of optical glass and refractory material.

production method The raw material of extraction method is rare earth nitrate solution after cerium removal, which contains about lao350%, trace CeO2, pr6o116% ~ 7% and nd2o330%. Formulated into Σ The rare earth nitrate solution of rxoy 320 ~ 330g / L is extracted and separated by 35 ~ 38 stages with neutral phosphine extractant dimethylheptyl methylphosphonate chemical Book ester (P350) in P350 kerosene system to separate lanthanum from other rare earths. The lanthanum containing raffinate is neutralized by ammonia, precipitated by oxalic acid, filtered and burned to obtain the finished lanthanum oxide. La2 (C2O4) 3 → La2O3 + 3CO2 + 3CO

Security Information

Dangerous Goods Sign Xi
Hazard category code 36/37/38-36
safety instructions 26-36-39
WGK Germany 1
RTECS number OE5330000
HS code 28469000


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