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243639

Sigma-Aldrich

Tungsten(IV) sulfide

powder, 2 μm, 99%

Synonym(s):

Tungsten disulfide

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About This Item

Linear Formula:
WS2
CAS Number:
12138-09-9
Molecular Weight:
247.97
EC Number:
235-243-3
MDL number:
MFCD00011467
UNSPSC Code:
12352302
PubChem Substance ID:
24854626
NACRES:
NA.23

Quality Level

100

Assay

99%

form

powder

reaction suitability

reagent type: catalyst
core: tungsten

particle size

2 μm

density

7.5 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

S=[W]=S

InChI

1S/2S.W

InChI key

ITRNXVSDJBHYNJ-UHFFFAOYSA-N

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Application

Tungsten(IV) sulfide (WS2) is a transition metal dichalcogenide with good catalytic, optical and electronic properties. WS2 can be used as a solid lubricant for a variety of applications such as aerospace, cutting tools and automotive systems.

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

243639-VAR:
243639-50G:
243639-5KG:
243639-500G:
243639-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
STBK1113
STBH5332
STBF7189V
STBD6479V
STBD4409V

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Codeposition of inorganic fullerene-like WS2 nanoparticles in an electrodeposited nickel matrix under the influence of ultrasonic agitation
Garcia-Lecina E, et al.
Electrochimica Acta, 114, 859-867 (2013)
Antispalling effect of WS2 nanoparticles on the lubrication of automotive gearboxes
Aldana PU, et al.
Tribology Transactions, 59(1), 178-188 (2016)
Performance of femtosecond laser-textured cutting tools deposited with WS2 solid lubricant coatings
Deng J, et al.
Surface and Coatings Technology, 222(1), 135-143 (2013)
Valentina Paolucci et al.
Sensors (Basel, Switzerland), 19(11) (2019-06-12)
The NO2 response in the range of 200 ppb to 1 ppm of a chemoresistive WS2-decorated rGO sensor has been investigated at operating temperatures of 25 °C and 50 °C in dry and humid air (40% RH) under dark and
Maria O Zhukova et al.
Nanoscale research letters, 14(1), 225-225 (2019-07-11)
Time-resolved terahertz spectroscopy has become a common method both for fundamental and applied studies focused on improving the quality of human life. However, the issue of finding materials applicable in these systems is still relevant. One of the appropriate solution
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