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LC5641 Tantalum(V) oxide tablets

about 0.5 g (Ta2O5)


Order number Packaging Quantity Price €
AC32641 Plastic can 100 g inquire
AC32641 Plastic can 1 kg inquire


Product information
Hill Formula O5Ta2
Chemical formula Ta2O5
HS Code 2825 90 85
EC number 215-238-2
Molar mass 441.89 g/mol
CAS number 1314-61-0


Chemical and physical data
Melting point 1880 °C
Molar mass 441.89 g/mol
Density 8.2 g/cm3 (20 °C)


Safety information
RTECS WW5855000
Storage class 10 – 13 Other liquids and solids
WGK NWG not water endangering
Disposal 15
Heavy metal-containing solutions and solids: container E. Stir Raney nickel (also: Urushibara nickel) in the form of an aqueous suspension into hydrochloric acid (Cat. No. 100312) until dissolved (container E). Neither Raney nickel itself nor any filter residues should be allowed to dry out, otherwise they will spontaneously ignite in air. In this context, heavy metal means any compound of antimony, arsenic, cadmium, chromium(VI), copper, lead, nickel and tin, as well as these subtances in metallic form, if they are classified as hazardous (acc. to AbfallverzeichnisV – Waste Catalogue Ordinance, Appendix 3). Other heavy metals should be collected separately.


Toxicological data
LD 50 oral LD50 rat 8000 mg/kg