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668885

Sigma-Aldrich

Bis(tert-butylimino)bis(dimethylamino)tungsten(VI)

packaged for use in deposition systems

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Synonym(s):
BTBMW
Linear Formula:
((CH3)3CN)2W(N(CH3)2)2
CAS Number:
406462-43-9
Molecular Weight:
414.23
MDL number:
MFCD07369712
UNSPSC Code:
12352300
PubChem Substance ID:
24885006
NACRES:
NA.23

Assay

99.99% (trace metals analysis)

form

liquid

reaction suitability

core: tungsten

bp

81 °C/0.02 mmHg (lit.)

density

1.305 g/mL at 25 °C (lit.)

SMILES string

CN(C)[W](=NC(C)(C)C)(=NC(C)(C)C)N(C)C

InChI

1S/2C4H9N.2C2H6N.W/c2*1-4(2,3)5;2*1-3-2;/h2*1-3H3;2*1-2H3;/q;;2*-1;+2

InChI key

JVCWKXBYGCJHDF-UHFFFAOYSA-N

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General description

Atomic number of base material: 74 Tungsten

Application

Precursors Packaged for Depositions Systems
Precursor for the deposition of tungsten carbide and -nitride by atomic layer deposition.

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H226,H260,H314

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - Water-react 1

WGK

WGK 3

Flash Point(F)

77.9 °F

Flash Point(C)

25.5 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

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

    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. 

  5. Can the empty deposition cylinders be refilled?

    Yes, we are able to refill these cylinders through our SAFC Hitech group.  Please contact our Technical Service department by email at techserv@sial.com, and they will forward you to the appropriate SAFC Hitech representative for a quote.

  6. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Chemistry of Materials, 15, 2969-2969 (2003)
Journal of the Electrochemical Society, 140, C740-C740 (2003)

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