Tungsten
Tungsten
- CAS:
- 7440-33-7
- MF:
- W
- MW:
- 183.84
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Company Type
Properties
- Melting point:
- 3410 °C (lit.)
- Boiling point:
- 5660 °C (lit.)
- Density
- 19.3 g/mL at 25 °C (lit.)
- bulk density
- 4000kg/m3
- vapor pressure
- 0Pa at 3000℃
- Flash point:
- -23 °C
- storage temp.
- no restrictions.
- form
- wire
- color
- Silver-gray
- Specific Gravity
- 19.3
- Flame Color
- Green
- Resistivity
- 4.9 μΩ-cm, 20°C
- Water Solubility
- insoluble
- Merck
- 13,9884
- Exposure limits
- ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)
- Stability:
- Stable. Dust is flammable, though not likely to present a hazard if normal good practice is used.
- CAS DataBase Reference
- 7440-33-7(CAS DataBase Reference)
- NIST Chemistry Reference
- Tungsten(7440-33-7)
- EPA Substance Registry System
- Tungsten (7440-33-7)
Safety Information
- Symbol(GHS)
GHS02
- Signal word
- Danger
- Hazard statements
- H228-H252
- Precautionary statements
- P210-P235-P240-P241-P280-P370+P378
- Hazard Codes
- F,Xi,N,Xn
- Risk Statements
- 11-36/38-67-65-62-51/53-48/20-38
- Safety Statements
- 6-26-36-62-61-36/37-16
- RIDADR
- UN 3089 4.1/PG 2
- OEB
- B
- OEL
- TWA: 5 mg/m3, STEL: 10 mg/m3 [*Note: The REL also applies to other insoluble tungsten compounds (as W).]
- WGK Germany
- -
- RTECS
- YO7175000
- TSCA
- Yes
- HazardClass
- 4.1
- PackingGroup
- III
- HS Code
- 81011000
- Hazardous Substances Data
- 7440-33-7(Hazardous Substances Data)
Use
Tungsten is used in the form of tungsten carbide for very hard and tough dies, tools, gauges, and bits.
42 India supplier list of "Tungsten"
- Product Name:Tungsten
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: Tamil Nadu,INDIA
- Product Name:Tungsten
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg
- Company Type: Manufacturer
- Country/Region: Maharashtra,INDIA
- Product Name:TUNGSTEN (METAL) POWDER
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: Maharashtra,INDIA
- Product Name:Tungsten
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg
- Company Type: Manufacturer
- Country/Region: Mumbai,INDIA
- Product Name:Tungsten
- Products Intro:Brand:sigma aldrich | Product Number:267511 | Purity:powder,12?μm,99.9%tracemetalsbasis
- Company Type: Trader
- Country/Region: Bangalore,INDIA
- Product Name:Tungsten
- Company Type: Trader
- Country/Region: Mumbai,INDIA
- Product Name:Tungsten
- Company Type: Trader
- Country/Region: New Delhi,INDIA
- Product Name:Tungsten
- Company Type: Reagent
- Country/Region: New Delhi,INDIA
- Product Name:Tungsten Metal Powder
- Company Type: Reagent
- Country/Region: Vadodara,INDIA
- Product Name:Tungsten
- Company Type: Reagent
- Country/Region: Ahmedabad,INDIA