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186171

Sigma-Aldrich

n-Butil-litio solution

1.6 M in hexanes

Sinónimos:

n-BuLi, Butil litio, Butil-litio solution, Litio-1-butanida

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50 ML
MXP 919.00
100 ML
MXP 1,671.00
4 X 25 ML
MXP 1,929.00
800 ML
MXP 4,232.00
4 X 100 ML
MXP 4,998.00

MXP 919.00

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50 ML
MXP 919.00
100 ML
MXP 1,671.00
4 X 25 ML
MXP 1,929.00
800 ML
MXP 4,232.00
4 X 100 ML
MXP 4,998.00

About This Item

Fórmula lineal:
CH3(CH2)3Li
Número de CAS:
109-72-8
Peso molecular:
64.06
Beilstein/REAXYS Number:
1209227
MDL number:
MFCD00009414
UNSPSC Code:
12352103
PubChem Substance ID:
24851205
NACRES:
NA.22
concentration:
1.6 M in hexanes

MXP 919.00

En stockDetalles

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form

liquid

Quality Level

200

concentration

1.6 M in hexanes

density

0.68 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

[Li]CCCC

InChI

1S/C4H9.Li/c1-3-4-2;/h1,3-4H2,2H3;

InChI key

MZRVEZGGRBJDDB-UHFFFAOYSA-N

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Application

  • Copolimerización de butadieno y estireno bajo la influencia del n-butillitio: en este estudio se explora el proceso de copolimerización utilizando n-butillitio como catalizador, lo cual es importante para el desarrollo de nuevos materiales de caucho sintético (V Bronskaya et al., 2023).
  • Modificadores del n-butillitio en la síntesis de cauchos de polibutadieno y estireno-butadieno: explora el uso del n-butillitio con diferentes modificadores en la síntesis de cauchos industriales, importantes para entender el control de las propiedades de los polímeros (VS Glukhovskoi et al., 2014).
  • Agregación y solvatación del n-butillitio: examina el comportamiento de agregación y las propiedades de solvatación del n-butillitio en varios disolventes, proporcionando información sobre sus interacciones químicas esenciales para la síntesis orgánica (O Tai et al., 2017).

Packaging

Los cilindros Kilo-Lab® solo están disponibles en los Estados Unidos. Los tipos de cilindros variarán según el país.

La botella Sure/Seal™ de 25 ml se recomienda como botella de un solo uso. Los pinchazos repetidos provocarán probablemente una disminución del rendimiento del producto.
Véase opciones de recipientes retornables.

Other Notes

Puede contener cantidades traza de LiCl.

Legal Information

Kilo-Lab is a registered trademark of Merck KGaA, Darmstadt, Germany
Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

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Referencia del producto
Descripción
Precios

signalword

Danger

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Repr. 2 - Skin Corr. 1B - STOT SE 3 - Water-react 1

target_organs

Central nervous system

supp_hazards

EUH014

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

WGK 3

flash_point_f

-14.8 °F - closed cup

flash_point_c

-26 °C - closed cup

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Certificados de análisis (COA)

Lot/Batch Number
SHBS3443
SHBP4377
STBL3586
STBL4233
SHBS0564

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Journal of the American Chemical Society, 111, 2981-2981 (1989)
Yuqiang Ma et al.
ACS nano, 9(7), 7383-7391 (2015-07-01)
Two-dimensional (2D) semiconducting monolayer transition metal dichalcogenides (TMDCs) have stimulated lots of interest because they are direct bandgap materials that have reasonably good mobility values. However, contact between most metals and semiconducting TMDCs like 2H phase WSe2 are highly resistive
Jennifer L Rutherford et al.
Journal of the American Chemical Society, 124(2), 264-271 (2002-01-10)
6Li and (13)C NMR spectroscopic studies were carried out on [(6)Li]n-BuLi and [(6)Li]PhLi (RLi) in toluene-d(8) containing the following diamines: N,N,N',N'-tetramethylethylenediamine (TMEDA), N,N,N',N'-tetraethylethylenediamine, 1,2-dipyrrolidinoethane, 1,2-dipiperidinoethane, N,N,N',N'-tetramethylpropanediamine, trans-(R,R)-N,N,N',N'-tetramethylcyclohexanediamine, and (-)-sparteine. Dimers of general structure (RLi)(2)S(2) (S = chelating diamine) are formed
Michael A Tarselli et al.
Organic letters, 11(20), 4596-4599 (2009-10-09)
A procedure for the coupling of aliphatic imines with allylic and allenic alkoxides is described. The success of these studies was enabled by a unique reactivity profile of Ti(IV) isopropoxide/n-BuLi compared to well-known Ti(IV) isopropoxide/RMgX systems.
Lawrence M Pratt et al.
The Journal of organic chemistry, 68(16), 6387-6391 (2003-08-05)
The effects of lithium dialkylamide structure, mixed aggregate formation, and solvation on the stereoselectivity of ketone enolization were examined. Of the lithium dialkylamides examined, lithium tetramethylpiperidide (LiTMP) in THF resulted in the best enolization selectivity. The stereoselectivity was further improved
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Questions

1–8 of 8 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. How are the 100 mL, 800 mL, and 1 L unit sizes of Product 186171, Butyllithium solution, packaged?

    1 answer

    1. They are packaged in our Sure-Seal™ bottle, which have a crown cap with a PTFE/elastomer liner crimped into place.

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  4. Is it necessary to handle Product 186171, Butyllithium solution, under inert atmosphere?

    1 answer

    1. This product ignites on exposure to air and should be handled under inert atmosphere such as under nitrogen.

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  5. What should I do if precipitate is present in Product 186171, Butyllithium solution?

    1 answer

    1. Haziness may form upon storage but does not affect the specification. If precipitation is present, then gently mix precipitate back into solution under an inert atmosphere.

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  6. 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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  7. What are common uses for Product 186171, Butyllithium solution?

    1 answer

    1. Butyllithium is widely use as a polymerization initiator in the production of elastomers such as polybutadiene or styrene-butadiene-styrene (SBS).  It is also broadly employed as a strong base (superbase) in organic synthesis, both industrially and in the laboratory.

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  8. How are the 8 L and 18 L unit sizes of Product 186171, Butyllithium solution, packaged?

    1 answer

    1. They are packaged in our Kilo-Lab™ cylinder.

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