High purity HOT SALE Tantalum powder 99% high quality see COA KANBEI
7440-25-7
Industrial Grade
99%
SHANGHAI
KANBEI
25kg drum
2022-07-10
PVC resin,pvc paste resin,melamine
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Product Description
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Seller Information
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DescriptionBasic Info
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Product Name:
Tantalum
Other Name:Tantalum;Tantalum-181;JIS H4701 TaH;JIS TaH;C 606;Trabecular Metal;VFI 70KD;QR 7;S 506;STA 100 (metal);S 700 (metal);STA 150;S 700;STA 100;NH 175;TU 4D;C 255 (metal);C 255;STA 150KA;Trabeculite;Tantal Nodular;1926138-08-0
CAS No.:7440-25-7
Molecular Formula:Ta
InChIKeys:InChIKey=GUVRBAGPIYLISA-UHFFFAOYSA-N
Molecular Weight:180.95
Exact Mass:180.94800
EC Number:231-135-5
UNII:6424HBN274
ICSC Number:1596
UN Number:3089
DSSTox ID:DTXSID8064690
Color/Form:Silvery gray metal, body-centered cubic crystal structure|CUBIC OR POWDER|Gray, very hard, malleable, ductile metal|Black powder; steel-blue-colored metal when unpolished, nearly platinum white when polished|Metal: Steel-blue to gray solid or black powder.
Categories:
Characteristics-
PSA:
0
XLogP3:0.00000
Appearance:Gray to silver wire
Density:16.64 g/cm3
Melting Point:2996 °C
Boiling Point:5429 °C
Flash Point:>250°C
Refractive Index:Index of refraction: 2.05
Water Solubility:very resistant to attack by acids except HF, resistant to alkali solutions [KIR83]
Vapor Pressure:<0.01 mm Hg ( 537.2 °C)
Toxicity:Trachea-rat TDL0: 250 mg/kg
Flammability characteristics:Spontaneously ignitable in air; toxic tantalum-containing fumes are released in the fire
Explosive limit:Metallic tantalum powder presents...explosion hazard, although not as serious as that of other metals (zirconium, titanium, etc).
Odor:Odorless
Experimental Properties:Atomic number: 73; can readily be drawn in fine wires; valences: 5, also 4, 3, 2.|Two naturally occurring isotopes: 181 (99.99877%); 180 (0.0123%) Half-life: >10+12 years; artificial isotopes: 172-179; 182-186|Specific heat (0 °C): 0.036 cal/g °C; Electrical resistivity: (18 °C): 12.4 microohm-cm|Very resistant to chemical attack; not attacked by aqueous acids other than hydrofluoric; not attacked by aqueous alkalies; slowly attacked by fused alkalies. Reacts with fluorine, chlorine, and oxygen only on heating. At high temperatures absorbs several hundred times its volume of hydrogen; combines with nitrogen, with carbon.|For more Other Experimental Properties (Complete) data for TANTALUM (11 total), please visit the HSDB record page.
Air and Water Reactions:Metal, Combustible Solid; powder ignites SPONTANEOUSLY in air. Highly flammable in Air (powdered form) No rapid reaction with water
Reactive Group:Metals, Elemental and Powder, Active
Reactivity Alerts:Strong Reducing Agent
Reactivity Profile:TANTALUM dust reacts rapidly with oxidizing agents (oxygen, fluorine, chlorine). Highly flammable in air, igniting spontaneously when dry. (Lewis, 3rd Ed, 1993). Dissolves in molten bases (such as sodium hydroxide). Insoluble in aqueous bases. Insoluble in acids except hydrofluoric acid and fuming sulfuric acid. Tantalum in bulk form (bar, sheet, etc.) is much less reactive than it is in powdered form. TANTALUM OXIDE dust is generally unreactive at room conditions. Insoluble in water and acids with the exception of hydrofluoric acid. Reacts when strongly heated with sodium carbonate.
Flammable Limits:Metal: Combustible Solid; powder ignites SPONTANEOUSLY in air.
Physical Dangers:Dust explosion possible if in powder or granular form, mixed with air.
Heat of Vaporization:7.53X10+5 J/mol
Hazard IdentificationClassification of the substance or mixture
Flammable solids, Category 1
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H228 Flammable solid
H252 Self-heating in large quantities; may catch fire
Precautionary statement(s) Prevention P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response P370+P378 In case of fire: Use ... to extinguish.
Storage none
Disposal none
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
NO open flames, NO sparks and NO smoking. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Fireproof. Separated from strong oxidants and halogens.
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Seller Information
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Business Type:
Trader
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Main Products:
PVC resin,pvc paste resin,melamine
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Location:
Room 405, Unit 2, Building 1, Taiji Mansion, No. 38, Nanyang Road, Jinshui District, Zhengzhou City, Henan Province
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Payment Terms:
TT against copy of documents,L/C
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Average lead Time:
90
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Total Annual Revenue:
$5 million-$10 million
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Total Employees:
11-50
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Year of Establishment:
2022
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Country Product Purchase Quantity Date Posted Post an enquiry for this product
