Tungsten single crystal, 8-9mm (0.31-0.35in) dia, 100mm (3.9in) long, random orientation, zone refined

• CAS: 7440-33-7
• Catalog Number: ACM7440337-17
• Category: Pure Element Single Crystals
• Molecular Weight: 183.8g/mol
• Molecular Formula: W
• 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
• Application: The purpose of the Tungsten single crystal, measuring 8-9mm in diameter and 100mm in length, with random orientation and refined through the zone refining process, is to harness tungsten's exceptional physical and chemical properties for various applications. Tungsten's remarkable hardness and high melting point make it ideal for enhancing the strength and durability of materials such as steel. Its use in manufacturing extends to applications requiring high-precision, such as in the production of alloys, incandescent lamp filaments, and components in electron tubes. Additionally, tungsten's stability and resistance to chemical reactions enable its use as a catalyst, notably in place of more expensive materials like platinum in specific processes. These qualities also lend tungsten to innovative uses, such as a lead substitute in ammunition and sporting goods and in the crafting of durable wedding bands. The tungsten single crystal's unique properties make it essential for advanced technological and industrial applications.
• 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
• 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
• Size: 0.5 cmx0.5 cm
• 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)

Custom Q&A

What is the molecular formula of tungsten?

The molecular formula of tungsten is W.

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 include Wolfram and TUNGSTEN ION.

What are some products that use tungsten?

Tungsten is used in products such as x-ray tubes, light bulbs, high-speed tools, welding electrodes, turbine blades, and golf clubs.

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. It has a density of 19.3 g/cm3.

What are some potential hazards associated with tungsten dust?

Tungsten dust may present a moderate fire hazard if allowed to accumulate and exposed to an ignition source.

What is the role of tungsten as described by CAMEO Chemicals?

Tungsten is described as a chromium group element atom with a role as a micronutrient.

What is the InChIKey of tungsten?

The InChIKey of tungsten is WFKWXMTUELFFGS-UHFFFAOYSA-N.

What are some identifiers for tungsten?

Some identifiers for tungsten include CAS number 7440-33-7, EC number 231-143-9, and UN number 3089.

What are some compounds and products that contain tungsten?

Cemented tungsten carbide is a hard substance used to make grinding wheels and cutting tools. Other tungsten compounds are used in ceramic pigments, fire retardant coatings for fabrics, and color-resistant dyes for fabrics.