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230200

Sigma-Aldrich

Lithiumborhydrid -Lösung

2.0 M in THF

Synonym(e):

Lithium boron hydride, Lithium hydroborate

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About This Item

Lineare Formel:
LiBH4
CAS-Nummer:
16949-15-8
Molekulargewicht:
21.78
MDL-Nummer:
MFCD00011088
UNSPSC-Code:
12352302
PubChem Substanz-ID:
24853783
NACRES:
NA.22
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Form

liquid

Qualitätsniveau

200

Eignung der Reaktion

reagent type: reductant

Konzentration

2.0 M in THF

Dichte

0.896 g/mL at 25 °C

SMILES String

[Li+].[H][B-]([H])([H])[H]

InChI

1S/BH4.Li/h1H4;/q-1;+1

InChIKey

UUKMSDRCXNLYOO-UHFFFAOYSA-N

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Anwendung

Lithium borohydride solution (2M in THF) has been used for the reduction of 5-benzylidene-2,4-thiazolidinediones and 5-benzylidene-4-oxo-2-thiazolidinethiones to form 5-benzyl-2,4-thiazolidinediones and 5-benzyl-4-oxo-2-thiazolidinethiones, respectively.[1]
Reactant for:
  • Preparation of gallium, indium, rhenium and zinc tris(mercaptoimidazolyl)hydroborato complexes
  • Mechano-chemical metathesis reactions
  • Noncatalytic hydrolysis for hydrogen generation
  • Growth of large gold monolayer protected-clusters
  • Anion substitution reactions
  • Dehydrogenation reactions

Verpackung

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

Rechtliche Hinweise

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

Signalwort

Danger

Gefahreneinstufungen

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

Zielorgane

Central nervous system, Respiratory system

Zusätzliche Gefahrenhinweise

EUH019

Lagerklassenschlüssel

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 2

Flammpunkt (°F)

-0.4 °F - closed cup

Flammpunkt (°C)

-18 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
SHBS1431
SHBR4994
SHBQ7232
SHBP8780
SHBN7054

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Regiospecific reduction of 5-benzylidene-2, 4-thiazolidinediones and 4-oxo-2-thiazolidinethiones using lithium borohydride in pyridine and tetrahydrofuran.
Giles RG
Tetrahedron, 56(26), 4531-4537 (2000)
Mark R Biscoe et al.
Journal of the American Chemical Society, 125(42), 12718-12719 (2003-10-16)
Three hydrophobic borohydrides carrying phenyl, pentafluorophenyl, and beta-naphthyl groups were used to reduce ketones in water and in methanol. With ketones carrying phenyl, naphthyl, or biphenyl substituents, there was preferential reduction in methanol of competing acetyl groups, either intermolecular or
Roger Domènech-Ferrer et al.
Analytical chemistry, 83(8), 3199-3204 (2011-03-18)
A novel cell for in situ Raman studies at hydrogen pressures up to 200 bar and at temperatures as high as 400 °C is presented. This device permits in situ monitoring of the formation and decomposition of chemical structures under
S M Opalka et al.
Nanotechnology, 20(20), 204024-204024 (2009-05-08)
Experimentation, thermodynamic modeling, and atomic modeling were combined to screen the reactivity of SiO2, Al2O3, and ZrO2 nanoscale oxides with LiBH4. Equilibrium thermodynamic modeling showed that the reactions of oxides with LiBH4 could lead to formation of stable Li-bearing oxide
[New method of cleaving the N-linked carbohydrate chains of glycoproteins using alkaline lithium borohydride].
L M Likhosherstov et al.
Doklady Akademii nauk SSSR, 274(1), 222-225 (1984-01-01)
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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. Is the tetrahydrofuran (THF) used in Product 230200, Lithium Borohydride, stabilized?

    1 answer

    1. The THF used in this product is stabilized with 0.025% butylated hydroxytoluene (BHT).

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  4. Is Product 230200, Lithium Borohydride, an energy carrier?

    1 answer

    1. Lithium borohydride is renowned for one of the highest energy density chemical energy carriers.  By reacting with atmospheric oxygen, it liberates large amounts of heat.

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  5. 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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  6. What types of reactions is Product 230200, Lithium Borohydride, used in?

    1 answer

    1. It is reagent for reduction of compounds containing ketonic, aldehydic, or ester carbonyls and a nitrile group, where reduction of the carbonyl but not of the nitrile group is wanted.

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  7. Why does Product 230200, Lithium Borohydride, need to be handled under nitrogen?

    1 answer

    1. This product is moisture sensitive, reacting violently with water, liberating extremely flammable gases.

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  8. Is it necessary to refrigerate Product 230200, Lithium Borohydride?

    1 answer

    1. We do recommend to refrigerate this product, since it may develop pressure at room temperature.

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