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Tungsten hexafluoride

Tungsten hexafluoride Suppliers list
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Products Intro: Product Name:Tungsten hexafluoride
Purity:99.00% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: CAS:7783-82-6
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: career henan chemical co
Tel: +86-371-86658258
Products Intro: Product Name:Tungsten hexafluoride
Purity:99% Package:1kg;1USD
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 86-18871470254
Products Intro: Product Name:hexafluorotungsten
Purity:99% Package:5KG;1KG
Company Name: Hubei xin bonus chemical co. LTD
Tel: 86-13657291602
Products Intro: Product Name:Tungsten hexafluoride

Lastest Price from Tungsten hexafluoride manufacturers

  • Tungsten hexafluoride
  • US $1.00 / kg
  • 2019-07-06
  • CAS:7783-82-6
  • Min. Order: 1 g
  • Purity: 99%
  • Supply Ability: 100KG
Tungsten hexafluoride Basic information
Physical and Chemical Properties Hazardous characteristics Storage Instructions First-aid steps Category Flammability hazard characteristics Storage characteristics Extinguishing agent Occupational standards
Product Name:Tungsten hexafluoride
Synonyms:Tungstenfluoride;TUNGSTEN HEXAFLUORIDE;TUNGSTEN(VI) FLUORIDE;(oc-6-11)-tungstenfluoride(wf6;Hexafluorotungsten;Tungsten fluoride (WF6);Tungsten fluoride (WF6), (OC-6-11)-;WF6
Product Categories:Synthetic Reagents;Chemical Synthesis;Electronic Chemicals;Fluorides;Materials Science;Micro/NanoElectronics;Specialty Gases
Mol File:7783-82-6.mol
Tungsten hexafluoride Structure
Tungsten hexafluoride Chemical Properties
Melting point 2.3 °C(lit.)
Boiling point 17.5 °C(lit.)
density d15liq 3.441
form colorless gas
Water Solubility decomposes
Merck 13,9885
CAS DataBase Reference7783-82-6(CAS DataBase Reference)
NIST Chemistry ReferenceTungsten hexafluoride(7783-82-6)
EPA Substance Registry SystemTungsten fluoride (WF6), (OC-6-11)- (7783-82-6)
Safety Information
Hazard Codes T,C
Risk Statements 23/24/25-34
Safety Statements 26-36/37/39-45
RIDADR UN 2196 2.3
WGK Germany 3
RTECS YO7720000
Hazard Note Toxic/Corrosive
HazardClass 2.3
MSDS Information
Tungsten hexafluoride English
SigmaAldrich English
Tungsten hexafluoride Usage And Synthesis
Physical and Chemical PropertiesChemical formula is WF6. The molecular weight is 297.84. It is colorless gas or light yellow liquid. It has strong irritant. It is poisonous, its toxicity is similar with fluorine. When the temperature is very low, it is white solid. It is soluble in organic solvents and then generate a special color. When meet water, it can decompose. In the air, it can decompose with strong smoke by moisture, and generate yellow tungstate or tungsten trioxide. Chemical properties is lively. And almost all metals (except gold and platinum) can react with it. It is also corrosive for nickel, monel and stainless steel, but Ni and stainless steel have resistance for corrosion. When dry, it is less corrosive to glass, while in moisture, it is able to react quickly. It can react strong with gaseous ammonia. Ammonia or an alkali can absorb it . It can generate double salt with alkali metal fluoride. It is soluble in benzene and other organic solvents.
[Density] 3.44×103kg/m3 (15℃, liquid)
[Melting point] 2.5℃ (5.6 × 104 Pa)
[Boiling point] 17.5℃
[Critical temperature] 171℃
[Critical pressure] 445.8kPa
[Preparation method] Metal tungsten powder and elemental fluorine can react to synthesize it directly.
[Application] (1) It is strong fluorinating agent, it can synthesize tungsten film in vapor deposition method. (2) it is used in the microelectronics industry for chemical vapor deposited tungsten silicide or tungsten, to produce a low resistance, a high melting point interconnects.

Figure 1 shows the molecular structure of tungsten hexafluoride.
Hazardous characteristicsWhen meet moisture, air or water, it will decompose and emit toxic and corrosive hydrogen fluoride fumes. It can cause very serious burns for skin, eyes, mucous membranes. When high concentrations expose, it can cause nausea, vomiting, abdominal pain, convulsions, kidney damage.
The above information is edited by the chemicalbook of Wang Xiaodong.
Storage InstructionsIt shoud be packed in special cylinders and stored in a cool, ventilated coffers. Avoid direct sunlight. Keep away from heat and sources of ignition. Prevent moisture. Metal, glass should be isolated storage. "poison gas" signs should be affixed. Aviation, railway transportation is prohibited. When other combustibles on fire around, dry powder, carbon dioxide can be used to extinguish. Water can be used to cool cylinder, and then close the valve quickly.
First-aid stepsIt has eye irritation and can lead to blind, eyes should continue to be rinsed, go to the hospital fast for treatment. After corrosion, skin and mucous membranes is difficult to heal, it should be washed with water, and then coated with magnesium oxide ointment or glycerol dilute ammonia, and seek medical advice.
CategoryCompressed gas and liquefied.
Flammability hazard characteristicsWhen meet water, it can decompose into toxic hydrogen fluoride gas and tungstate.
Storage characteristicsTreasury ventilation low-temperature drying.
Extinguishing agentWater.
Occupational standardsTLV-TWA 5 mg (tungsten)/cubic meter; STEL 10 mg (tungsten)/cubic meter.
Chemical PropertiesColorless gas or light-yellow liquid.
Chemical PropertiesTungsten hexafluoride is a toxic, colorless gas or a light yellow liquid.
UsesIn the electronics industry as a source of tungsten metal that connects the aluminum layers within semiconductor devices.
General DescriptionA toxic corrosive light yellow liquid or gas. Boiling point 67°F. Melting point 37°F. Noncombustible. Used in the manufacture of other chemicals and in the manufacture of electronics.
Air & Water ReactionsDecomposes in water giving hydrofluoric acid, another corrosive material.
Reactivity ProfileTungsten hexafluoride emits very toxic and irritating fumes containing metallic tungsten and tungsten fluorides when heated to decomposition. Reacts violently with tetramethoxysilane [Jacob, E., Angew. Chem., 1982, 21, p. 143].
Health HazardTOXIC; may be fatal if inhaled, ingested or absorbed through skin. Vapors are extremely irritating and corrosive. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.
Fire HazardSome may burn but none ignite readily. Vapors from liquefied gas are initially heavier than air and spread along ground. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.
Safety ProfileA poison and corrosive liquid or gas.
Potential ExposureA strong halogenating agent. Used to apply tungsten coatings to other surfaces by vapor deposition process; making electronics and components; in the manufacture of other chemicals.
ShippingUN2196 Tungsten hexafluoride, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 8-Corrosive material, Inhalation Hazard Zone B. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.
IncompatibilitiesDecomposes on contact with water and moist air, forming highly corrosive hydrofluoric acid. Violent reaction on contact with methyl silicate.
Waste DisposalReturn refillable compressed gas cylinders to supplier. Nonrefillable cylinders should be disposed of in accordance with local, state and federal regulations. Allow remaining gas to vent slowly into atmosphere in an unconfined area or exhaust hood. Refillabletype cylinders should be returned to original supplier with any valve caps and outlet plugs secured and valve protection caps in place.
Tungsten hexafluoride Preparation Products And Raw materials
Tag:Tungsten hexafluoride(7783-82-6) Related Product Information
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