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A7678812

Tantalum high-CV powder , 23K , 7440-25-7

CAS NO.:7440-25-7

Empirical Formula: Ta

Molecular Weight: 180.95

MDL number: MFCD00011252

EINECS: 231-135-5

Pack Size Price Stock Quantity
5G RMB159.20 In Stock
25G RMB519.20 In Stock
100G RMB1599.20 In Stock
500G RMB5919.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 2996 °C (lit.)
Boiling point: 5425 °C (lit.)
Density  16.69 g/cm3 (lit.)
vapor pressure  <0.01 mm Hg ( 537.2 °C)
storage temp.  no restrictions.
solubility  reacts with HF
form  wire
Specific Gravity 16.6
color  Gray to silver
Resistivity 13.5 μΩ-cm, 20°C
Water Solubility  very resistant to attack by acids except HF, resistant to alkali solutions [KIR83]
Merck  13,9143
Exposure limits ACGIH: TWA 0.5 ppm(2.5 mg/m3); Ceiling 2 ppm (Skin)
OSHA: TWA 3 ppm
NIOSH: IDLH 30 ppm(250 mg/m3); TWA 3 ppm(2.5 mg/m3); Ceiling 6 ppm(5 mg/m3)
Stability: Stable. Powder is very flamable.
InChIKey GUVRBAGPIYLISA-UHFFFAOYSA-N
LogP -1 at 20℃

Description and Uses

Manufacture of capacitors and other electronic components; chemical equipment and corrosion-resistant tools.

Safety

Symbol(GHS) 
GHS02
Signal word  Danger
Hazard statements  H228
Precautionary statements  P210-P240-P241-P280-P370+P378
Hazard Codes  F,Xi,Xn,C
Risk Statements  11-36/37/38-20/21/22-40-34-36/38
Safety Statements  16-26-33-36/37/39-36-45-27-36/37
RIDADR  UN 3089 4.1/PG 2
OEB B
OEL TWA: 5 mg/m3, STEL: 10 mg/m3
WGK Germany  -
RTECS  WW5505000
Autoignition Temperature 572 °F
TSCA  Yes
HazardClass  4.1
PackingGroup  II
HS Code  8103909000
IDLA 2,500 mg Ta/m3

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