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LC5181 Tellurium dioxide



Order number Packaging Quantity Price €
AC32181 Glass bottle 25 g 71.10


Product information
Synonyms Tellurium(IV) oxide
Hill Formula O2Te
Chemical formula TeO2
HS Code 2811 29 90
EC number 231-193-1
Molar mass 159.60 g/mol
CAS number 7446-07-3


Chemical and physical data
Solubility (20 °C) insoluble
Melting point 733 °C
Molar mass 159.60 g/mol
Density 6.02 g/cm3 (20 °C)
Boiling point 1245 °C



Safety information
S Phrase S 22
Do not breathe dust.
Storageclass 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 > 2000 mg/kg


Assay (gravimetrically) ≥ 99.5 %
Identity (elemental analysis) conforms