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702722

Sigma-Aldrich

Potassium bis(trimethylsilyl)amide solution

1 M in THF

Synonym(s):

KHMDS, Hexamethyldisilazane potassium salt solution, Potassium hexamethyldisilazide solution

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About This Item

Linear Formula:
[(CH3)3Si]2NK
CAS Number:
Molecular Weight:
199.48
Beilstein/REAXYS Number:
4006754
MDL number:
UNSPSC Code:
12352111
PubChem Substance ID:
NACRES:
NA.22

vapor density

3.2 (vs air)

Quality Level

form

liquid

concentration

1 M in THF

density

0.915 g/mL at 25 °C

SMILES string

C[Si](C)(C)N([K])[Si](C)(C)C

InChI

1S/C6H18NSi2.K/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1

InChI key

IUBQJLUDMLPAGT-UHFFFAOYSA-N

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Application

Potassium bis(trimethylsilyl)amide solution (1 M in THF) has been used as an anionic initiator in the polymerization of polyethylene oxide(PEO).

Packaging

The 25 mL Sure/Seal bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 3

target_organs

Central nervous system, Respiratory system

supp_hazards

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

-2.0 °F

flash_point_c

-18.9 °C

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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Journal of Colloid and Interface Science, 459, 175-182 (2015)
Elsa Vennat et al.
Dental materials : official publication of the Academy of Dental Materials, 25(6), 729-735 (2009-01-29)
The objectives of this study were to assess demineralized dentin porosity and quantify the different porous features distribution within the material using mercury intrusion porosimetry (MIP) technique. We compared hexamethyldisilazane (HMDS) drying and lyophilization (LYO) (freeze-drying) in sample preparation. Fifty-six
Nan Li et al.
Lab on a chip, 8(12), 2105-2112 (2008-11-22)
High-density live cell array serves as a valuable tool for the development of high-throughput immunophenotyping systems and cell-based biosensors. In this paper, we have, for the first time, demonstrated a simple fabrication process to form the hexamethyldisilazane (HMDS) and poly(ethylene
Nur Hazlin Hazrin-Chong et al.
Journal of microbiological methods, 90(2), 96-99 (2012-05-09)
The use of hexamethyldisilazane (HMDS) as a drying agent was investigated in the specimen preparation for scanning electron microscopy (SEM) imaging of bacterial surface colonization on sub-bituminous coal. The ability of microbes to biofragment, ferment and generate methane from coal
Tatsuya Nitabaru et al.
Journal of the American Chemical Society, 131(38), 13860-13869 (2009-09-10)
Full details of an anti-selective catalytic asymmetric nitroaldol reaction promoted by a heterobimetallic catalyst comprised of Nd(5)O(O(i)Pr)(13), an amide-based ligand, and NaHMDS (sodium hexamethyldisilazide) are described. A systematic synthesis and evaluation of amide-based ligands led to the identification of optimum

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