High Purity Lanthanum Oxide 99.9%-99.999% from China -La2O3,rare earth oxide,rare earth

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$6.00 - $10.00 / Kilograms | 1 Kilogram/Kilograms (Min. Order)
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Overview
Quick Details
Place of Origin:
Fujian, China
Brand Name:
GDRE
Model Number:
Rare earth oxides
Composition:
Lanthanum oxide
Product Type:
Rare Earth Oxide
Content(percent):
99.9%-99.999%
Application:
glasses, phosphors,ceramics
Grade:
Lanthanum Oxide
Color:
White
Formula:
La2O3
Mol.WT.:
325.82
CAS No.:
1312-81-8
Supply Ability
Supply Ability:
1000 Ton/Tons per Year
Packaging & Delivery
Packaging Details
50Kg packed into double-layer PVC bags and then into steel drums
Port
Xiamen

PRODUCT IDENTIFICATION

CAS NO.1312-81-8

 

EINECS NO.215-200-5
FORMULALa2O3
MOL WT.325.82

H.S.CODE

 
TOXICITYOral rat LD50: 10 g/kg
SYNONYMSlanthana; lanthanum sesquioxide; lanthanum trioxide;
PRICEU$80/kg (100kgs)

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATEwhite powder
MELTING POINT> 2300 C
BOILING POINT> 4200 C
SPECIFIC GRAVITY 
SOLUBILITY IN WATERInsoluble (soluble in acid)
pH

 

FLASH POINT 
NFPA RATINGSHealth: 1; Flammability: 0; Reactivity: 0
STABILITYStable under ordinary conditions. Highly hygroscopic.

GENERAL DESCRIPTION & APPLICATIONS

Lanthanum is a malleable, ductile, soft, silvery white metallic element belonging to group number 3 of periodic table; atomic number 57; atomic mass 138.91; melting point 920°C; boiling point 3464°C; specific gravity 6.162 g/cm3Oxidation state 3; electronic configuration [Xe] 5d1 6s2. It oxidizes rapidly when exposed to moisture air. Lanthanum is the second most abundant rare-earth element next to cerium. Lanthanide (or lanthanoid) series are the group of rare-earth elements from lanthanum (atomic numbers 57) to 71; their chemical properties are similar to each other. The chemical properties of scandium and yttrium are also similar to the lanthanides; these group are often referred to "rare earth elements".

Atomic No.

Element

Symbol

CAS RN

21Scandium

Sc

7440-20-2
39Yttrium

Y

7440-65-5
57LanthanumLa7439-91-0
58CeriumCe7440-45-1
59PraseodymiumPr7440-10-0
60NeodymiumNd7440-00-8
61PromethiumPm7440-12-2
62SamariumSm7440-19-9
63EuropiumEu7440-53-1
64GadoliniumGd7440-54-2
65TerbiumTb7440-27-9
66DysprosiumDy7429-91-6
67HolmiumHo7440-60-0
68ErbiumEr7440-52-0
69ThuliumTm7440-30-4
70YtterbiumYb7440-64-4
717440-64-4Lu7440-64-4

Lanthanum belongs to the group of transition metal whose atom has an incomplete d sub-shell, or which can give rise to cations with an incomplete d sub-shell; includes elements 21 through 29 (scandium through copper), 39 through 47 (yttrium through silver), 57 through 79 (lanthanumthrough gold), and all elements from 89 (actinium). Minerals which incorporates lanthanum includelanthanite, cordylite, parisite, bastnaesite, synchysite, and monazite. Lanthanum is a major component of misch metal, a pyrophoric alloy used in lighter flints. Small amounts of lanthanum added to steel or iron to improves ductility and to produce nodular cast iron. Rare-earth compounds containing lanthanum are used in carbon lighting applications. Lanthanum is used to replace lime in calcium lights and in optical glass for the alkali resistance, the high refractive index and low dispersion applications. Lanthanum-rich lanthanide compounds are used in cracking reactions as a FCC catalyst. Lanthanum nitrate is a hygroscopic white crystals; melting point 40 C. It is soluble in water and alcohol. It is used as an antiseptic and a catalyst. It is used in gas mantles, specialty glass and water treatment. Lanthanum oxide, also called lanthana; lanthanumsesquioxide; lanthanum trioxide, is a white powder melting point 2000 C. It is insoluble in water but soluble in acids. Lanthanum Oxide is used in manufacturing high transparency and refraction index glass. The end application is precision optics like microscope and telescope lenses and camera components. It is used in preparing special glasses. Lanthanum sulfate is a white crystals. It is slightly soluble in water, soluble in alcohol. It is used for atomic weight determinations for lanthanum.Lanthanum carbonate is a hygroscopic powder soluble in water and acids. It is a component of the catalyst used in cracking reactions. In medicinal use, lanthanum carbonate is used in the treatment of hyperphosphataemia in patients with end stage renal disease. 

SALES SPECIFICATION

APPEARANCE

white powder

RE PURITY

99.9% min (or upon request)

RE IMPURITY

TREO: 99.0% min

CeO2 : 20ppm max

Pr6O11 : 20ppm max

Nd2O3 : 10ppm max

Sm2O3 : 10ppm max

Y2O3 : 10ppm max

Non-RE IMPURITY

Fe2O3 : 10ppm max

SiO2 : 40ppmmmax

CaO : 30ppm max

CuO : 5ppm max

PbO : 5ppm max

NiO : 4ppm max

Cl- : 300ppm max