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Safety Information

1.12349

Sigma-Aldrich

Tantalum powder

98+

Synonym(s):

Tantalum powder

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About This Item

Empirical Formula (Hill Notation):
Ta
CAS Number:
7440-25-7
Molecular Weight:
180.95
MDL number:
MFCD00011252
UNSPSC Code:
12141741
EC Index Number:
231-135-5
NACRES:
NA.22

Quality Level

200

form

solid

autoignition temp.

>250 °C

potency

>2000 mg/kg LD50, oral (Rat)

pH

7 (20 °C in H2O, aqueous suspension)

mp

2996 °C

solubility

<0.010 g/L

density

16.6 g/cm3 at 20 °C

bulk density

500 kg/m3

storage temp.

no temp limit

InChI

1S/Ta

InChI key

GUVRBAGPIYLISA-UHFFFAOYSA-N

Analysis Note

Identity (elemental analysis): passes test
Assay: ≥ 98.0 %

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Flammable solids
Metal powder
Hazardous rank III
2nd combustible solid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

Certificates of Analysis (COA)

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