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Merck

71320

Sigma-Aldrich

Borohidruro de sodio

purum p.a., ≥96% (gas-volumetric)

Sinónimos:

Tetrahidruroborato de sodio

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25 G
$80.700
100 G
$219.000
500 G
$269.000

$80.700


Fecha estimada de envío10 de mayo de 2025


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25 G
$80.700
100 G
$219.000
500 G
$269.000

About This Item

Fórmula lineal:
NaBH4
Número de CAS:
Peso molecular:
37.83
Número CE:
Número MDL:
Código UNSPSC:
26111700
ID de la sustancia en PubChem:
NACRES:
NA.22

$80.700


Fecha estimada de envío10 de mayo de 2025


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grado

purum p.a.

Nivel de calidad

Ensayo

≥96% (gas-volumetric)

Formulario

powder

idoneidad de la reacción

reagent type: reductant

mp

>300 °C (dec.) (lit.)

trazas de anión

chloride (Cl-): ≤5000 mg/kg
sulfate (SO42-): ≤50 mg/kg

trazas de catión

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤1000 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

cadena SMILES

[BH4-].[Na+]

InChI

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

Clave InChI

YOQDYZUWIQVZSF-UHFFFAOYSA-N

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Descripción general

Sodium borohydride is considered as a selective reducing agent due to its ability to selectively reduce aldehydes and ketones into their corresponding alcohols in the presence of other functional groups such as nitro, ester, amide, lactone, epoxide, and nitriles that are otherwise susceptible to reduction.[1] It is being considered as a promising candidate for hydrogen storage applications.[2]

Aplicación

Sodium borohydride may be used as a reductant and hydrogen source for the semi-hydrogenation of alkynes to the corresponding alkenes in the presence of nickel nanoparticles generated in situ from nickel chloride and methanol.[3] It can also be used as a reducing agent for the synthesis of gold nanoparticles from gold chloride.[4]

Otras notas

Reduction of carboxylic acid derivatives [5][6]

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

Acute Tox. 3 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - Water-react 1

Riesgos supl.

Código de clase de almacenamiento

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

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges


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Certificados de análisis (COA)

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Visite la Librería de documentos

hemoselective reductions with sodium borohydride.
Ward D
Canadian Journal of Chemistry, 67(7), 1206-1211 (1989)
Synthesis of thiol-derivatised gold nanoparticles in a two-phase liquid?liquid system.
Brust M
Journal of the Chemical Society. Chemical Communications, 7, 801-802 (1994)
G.W. Gribble
ACS Symp. Ser., 641, 167-167 (1996)
Ligand-free nickel-catalyzed semihydrogenation of alkynes with sodium borohydride: a highly efficient and selective process for cis-alkenes under ambient conditions.
Wen X
Chemical Communications (Cambridge, England), 53(39), 5372-5375 (2017)
Thermo-economic analysis of a hydrogen production system by sodium borohydride (NaBH 4).
Rivarolo M
International Journal of Hydrogen Energy, 43(3), 1606-1614 (2018)

Questions

1–2 of 2 Questions  
  1. 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

      Helpful?

  2. 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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