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tert-Butyllithium, typ. 18 % solution in Pentane (typ. 1.9 M)

tert-Butyllithium, typ. 18 % solution in Pentane (typ. 1.9 M)

C4H9Li

CAS Number:  594-19-4 EC Number:  209-831-5 REACH Number:  01-2120138354-60-0000

tert-Butyllithium (CAS 594-19-4) is an organolithium reagent with molecular formula C4H9Li. It is supplied as a typical 18% solution in Pentane.

tert-Butyllithium is commonly used as a strong base and nucleophile in organic synthesis. Typical applications include alkylation, deprotonation and also halogen-lithium exchange.

tert-Butyllithium reacts readily with moisture and oxygen and should be handled under dry, inert conditions. Consult the SDS and site-specific procedures for compatible materials, fire response, and storage.

Physical and Chemical Properties
Property Value
IUPAC Name
 
Molecular Weight
64.06g/mol
Appearance
Liquid
Color
Light Yellow
Flash Point
-40 °C (Pentane)
Boiling Point
36 °C at 1013.250 hPa (Pentane)
Density
ca. 0.67 g/cm3 at 20 °C
Solubility in Water
(Not applicable)
Additional Properties
Sublimation: 70 °C at 0.1 mbar Decomposition rate: - at 20 °C 0.015 % - at 30 °C 0.12 % loss of active base per month.

Applications

Alkylating and metalating agent. Reagent for the introduction of the tert-butyl group.

Specifications

  • tert-Butyllithium: 17 - 19 %

    Method of Analysis

    Determination of assay as active base. Detailed description available on request.

    Handling Instructions

    Handling only under inert gas (nitrogen or argon). The product may ignite spontaneously on contact with air, especially if the solvent is evaporated quickly. Therefore the danger of ignition is enhanced if the solution comes in contact with surface rich materials (paper, textiles) or if it is sprayed. Pay attention to official safety regulations (see also: "Transport regulations" and "GHS Hazard Pictograms", especially fire-fighting).

    Storage Instructions

    Under exclusion of air and humidity the solution is fairly stable. To keep the quality a storage of 0-10 °C is recommended. The solution should be stored in tightly closed containers in a well ventilated cool place.

    Legal Disclaimer

    The information presented herein is believed to be accurate and reliable but is presented without guarantee or responsibility on the part of Albemarle Corporation and its subsidiaries and affiliates. It is the responsibility of the user to comply with all applicable laws and regulations and to provide for a safe workplace. The user should consider any health or safety hazards or information contained herein only as a guide and should take those precautions which are necessary or prudent to instruct employees and to develop work practice procedures in order to promote a safe work environment. Further, nothing contained herein shall be taken as an inducement or recommendation to manufacture or use any of the herein materials or processes in violation of existing or future patent.