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399108

Sigma-Aldrich

Tungsten(VI) fluoride

≥99.9%

Synonym(s):

Hexafluorotungsten, Tungsten hexafluoride

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About This Item

Linear Formula:
WF6
CAS Number:
Molecular Weight:
297.83
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23
Assay:
≥99.9%
form:
gas (compressed)
Pricing and availability is not currently available.

Quality Level

Assay

≥99.9%

form

gas (compressed)

bp

17.5 °C (lit.)

mp

2.3 °C (lit.)

SMILES string

F[W](F)(F)(F)(F)F

InChI

1S/6FH.W/h6*1H;/q;;;;;;+6/p-6

InChI key

NXHILIPIEUBEPD-UHFFFAOYSA-H

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General description

Tungsten hexafluoride may be used as a precursor to prepare tungsten (VI) oxide.[1]

Packaging

Packaged in cylinders.

Recommended products

A stainless steel control valve or gas regulator is recommended.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 2 Inhalation - Press. Gas Compr. Gas - Skin Corr. 1A

Supplementary Hazards

Storage Class Code

2A - Gases

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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Chemical vapor deposition of tungsten oxide.
Kirss RU and Meda L
Applied Organometallic Chemistry, 12(3), 155-160 (1998)

Questions

1–3 of 3 Questions  
  1. What is the cylinder pressure of the gas in 399108-225G?

    1 answer
    1. This compound has a boiling point of 17.5°C. The material is chilled at the time of packaging and dispensed in liquid form, the lecture bottle is not pressurized. According to the literature, Tungsten(VI) fluoride has a vapor pressure of approximately 2.4 psig at room temperature. Thus, the bottle pressure is slightly above atmospheric.

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  2. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  3. What are the dimensions of the steel cylinders for 399108, Tungsten(VI) fluoride?

    1 answer
    1. Both SKUs of product 399108 are in the same 440 ml carbon steel lecture bottle, CY9211 or Z175544 (same bottle).  The dimensions for that bottle are 2 diameter and 12.75 in. from the bottom to the nozzle on the valve."

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