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Single Layer WS2 Dispersion(C: 0.1mg/ml, solvent: water)

CAS
7440-33-7
Catalog Number
ACM7440337-21
Category
Graphene-like Materials Series
Molecular Weight
183.8g/mol
Molecular Formula
W

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Specification

Description
Dull gray powder or hard, brittle, steel-gray to white metal. Difficult to melt. Mp: 3410°C; bp; 5900°C. Density: 19.3 g/cm³. Used in alloys, light bulb filaments, and cutting tools. Tungsten Dust (for example, from grinding) may present a moderate fire hazard if allowed to accumulate and exposed to an ignition source.;DryPowder; DryPowder, OtherSolid; OtherSolid;GREY-TO-WHITE POWDER.;Physical properties vary depending upon the specific soluble tungsten compound.;Hard, brittle, steel-gray to tin-white solid.
IUPAC Name
tungsten
Canonical SMILES
[W]
InChI
InChI=1S/W
InChI Key
WFKWXMTUELFFGS-UHFFFAOYSA-N
Boiling Point
10701 °F at 760 mm Hg (NIOSH, 2016);5900 °C @ 760 mm Hg;5900 °C;10,701°F
Melting Point
6170 °F (NIOSH, 2016);3410 °C;3410 °C;6170°F
Density
19.3 (NIOSH, 2016);18.7-19.3 @ 20 °C/4 °C; depends on extent of working.;19.3 g/cm³;19.3
Solubility
Insoluble (NIOSH, 2016);Sol in mixture of nitric acid and hydrofluoric acid;Solubility in water: none;Insoluble
Autoignition Temperature
>=100 °C
Color/Form
Steel-gray to tin-white metal; body centered cubic structure;CRYSTALLINE FORM GRAY-BLACK, CUBIC;Hard, brittle, steel-gray to tin-white solid.
Complexity
0
Concentration
0.1mg/ml
Covalently-Bonded Unit Count
1
EC Number
231-143-9
Exact Mass
183.950933g/mol
Formal Charge
0
H-Bond Acceptor
0
H-Bond Donor
0
Heat of Vaporization
1150 cal/g
Heavy Atom Count
1
ICSC Number
1404
Monoisotopic Mass
183.950933g/mol
Other Experimental
Very pure tungsten can be cut with hacksaw and forged, spun, drawn, and extruded; impure metal brittle, worked with difficulty;NOT AFFECTED BY SULFUR OR PHOSPHORUS; GOOD ELECTRICAL CONDUCTIVITY;VIGOROUS REACTION WITH BROMINE TRIFLUORIDE, CHLORINE TRIFLUORIDE; REACTION WITH FLUORINE MAY BE INCANDESCENT;Corroded by sea water.;Atomic number: 74; valences 6, 5, 4, 3, 2. Naturally occurring isotopes: 180 (0.135%); 182 (26.4%); 183 (14.4%); 184 (30.6%); 186 (28.4%).;Hardness: 6.5-7.5. Specific heat (20 °C): 0.032 cal/g/deg C; heat of fusion: 44 cal/g; electrical resistivity (20 °C) 5.5 uohm-cm.;Forms trioxide at red heat; not attacked by water; oxidized to dioxide by steam; very stable to acids, attacked only superficially by concn nitric acid or aqua regia; attacked by fluorine at room temp; by chlorine at 250-300 °C giving hexachloride in absence of air and trioxide and oxychloride in presence of air.;Powdered tungsten can be pyropohric under the right conditions. Slowly sol in fused potassium hydroxide in air, in fused sodium carbonate in air, and sol in fused mixture of sodium hydroxide and nitrate.
Rotatable Bond Count
0
RTECS Number
YO7175000
Solvent
Water
Stability
STABLE IN DRY AIR @ ORDINARY TEMP;OXIDIZES IN AIR & MUST BE PROTECTED @ ELEVATED TEMP
UNII
V9306CXO6G
UN Number
3089;1325
Vapor Pressure
0 mm Hg (approx) (NIOSH, 2016);1.97X10-7 mm Hg @ 2,327 °C;0 mmHg (approx)
When was tungsten first created?

Tungsten was first created on September 16, 2004.

What is the molecular weight of tungsten?

The molecular weight of tungsten is 183.84 g/mol.

What are some synonyms for tungsten?

Some synonyms for tungsten are Wolfram and TUNGSTEN ION.

What are some common uses of tungsten?

Tungsten is used in products such as x-ray tubes, light bulbs, high-speed tools, welding electrodes, turbine blades, golf clubs, darts, fishing weights, gyroscope wheels, phonograph needles, bullets, and armor penetrators.

What are the physical properties of tungsten?

Tungsten is a dull gray powder or hard, brittle, steel-gray to white metal. It has a melting point of 3410 °C and a boiling point of 5900 °C. Its density is 19.3 g/cm3.

What is the IUPAC name of tungsten?

The IUPAC name of tungsten is tungsten.

What is the CAS number of tungsten?

The CAS number of tungsten is 7440-33-7.

What is the UNII of tungsten?

The UNII of tungsten is V9306CXO6G.

What is the EC number of tungsten?

The EC number of tungsten is 231-143-9.

What is the RTECS number of tungsten?

The RTECS number of tungsten is YO7175000.

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