لانتانیوم تری اکساید 110982 مرک

Description
Catalogue Number	110982

Product Information
CAS number	1312-81-8
EC number	215-200-5
Hill Formula	La₂O₃
Molar Mass	325.82 g/mol
HS Code	2846 90 10

Applications
Application	Lanthanum(III) oxide for atomic absorption spectroscopy. CAS 1312-81-8, pH 9.0 (50 g/l, H₂O, 20 °C) (slurry).

Physicochemical Information
Boiling point	4200 °C
Density	6.51 g/cm3 (20 °C)
Melting Point	2315 °C
pH value	9.0 (50 g/l, H₂O, 20 °C) (slurry)
Bulk density	1300 kg/m3

Toxicological Information
LD 50 oral	LD50 Rat > 9968 mg/kg

Safety Information according to GHS
Precautionary Statement(s)	P260: Do not breathe dust.
Storage class	10 - 13 Other liquids and solids
WGK	NWG not water endangering
Disposal	27 Residues containing valuable recoverable metals should be forwarded for recycling. Container H.

Storage and Shipping Information
Storage	Storage temperature: no restrictions.

Specifications
Assay (complexometric, on of the ignited basis substance)	≥ 99.5 %
Chloride (Cl)	≤ 0.005 %
Sulphate (SO₄)	≤ 0.005 %
Heavy metals (as Pb)	≤ 0.002 %
Ca (Calcium)	≤ 0.005
Cu (Copper)	≤ 0.0003 %
Fe (Iron)	≤ 0.002
Li (Lithium)	≤ 0.0001 %
Mg (Magnesium)	≤ 0.0003 %