send us an inquiry

LC5642 Tantalum powder



Order number Packaging Quantity Price €
AC32642 Glass bottle 25 g 130.50


Product information
Hill Formula Ta
HS Code 8103 20 00
EC number 231-135-5
Molar mass 180.94 g/mol
CAS number 7440-25-7


Chemical and physical data
Ignition temperature >250 °C
Solubility < - 0.010 g/l (20 °C)
Melting point 2996 °C
Molar mass 180.94 g/mol
Density 16.6 g/cm3 (20 °C)
Bulk density 500 kg/m3
pH value ca.7 (H2O, 20 °C) (aqueous suspension)
Boiling point 5425 °C


Safety information according to GHS
Hazard Statement(s) H228: Flammable solid
Precautionary Statement(s) P210: Keep away from heat/sparks/open flames/hot surfaces. – No smoking.
Signal Word Danger
Hazard Pictogram(s)
Storage class 4.1B Flammable solids
WGK NWG not water endangering
Disposal 27
Residues containing valuable recoverable metals should be forwarded for recycling. Container H.


Safety information
R Phrase R 11
Highly flammable.
S Phrase S 43
In case of fire, use metal-fire powder. Never use water.
Categories of danger highly flammable
Hazard Symbol Flammable


Transport information
Declaration (transport by sea) IMDG-Code UN 3089 METAL POWDER, FLAMMABLE, N.O.S., 4.1, II, Segregation Group: 7 (Heavy metals and their salts (including their organometallic compounds)), 15 (Powdered metals)
Declaration (transport by air) IATA-DGR UN 3089 METAL POWDER, FLAMMABLE, N.O.S., 4.1, II


Toxicological data
LD 50 oral LD50 rat > 2000 mg/kg


Identity (elemental analysis) conforms
Assay ≥ 98.0 %