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安全信息

8.06373

Sigma-Aldrich

Sodium borohydride

fine granular for synthesis

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别名:
Sodium borohydride, Sodium tetrahydridoborate
经验公式(希尔记法):
H4BNa
CAS号:
分子量:
37.83
MDL编号:
UNSPSC代码:
12352306
EC索引号:
241-004-4
NACRES:
NA.22

蒸汽压

<1 hPa ( 25 °C)

质量水平

形式

solid

自燃温度

220 °C

效能

160 mg/kg LD50, oral (Rat)
230 mg/kg LD50, skin (Rabbit)

expl. lim.

3.02 % (v/v)

反应适用性

reagent type: reductant

pH值(酸碱度)

11 (20 °C, 10 g/L in H2O)

bp

500 °C (decomposition)

mp

>360 °C (slow decomposition)

转变温度

flash point 69 °C

密度

1.07 g/cm3 at 20 °C

堆积密度

350‑500 kg/m3

储存温度

2-30°C

InChI

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

InChI key

YOQDYZUWIQVZSF-UHFFFAOYSA-N

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相关类别

一般描述

Sodium borohydride (NaBH4) is the most commonly available borohydride used in several industrial applications. It 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. Ethanol and methanol are usually employed as solvents in NaBH4 reduction reactions.

应用

Sodium borohydride (fine granular) can be used as a reducing agent to prepare:
  • Zero valent iron nanoparticles supported on mesoporous carbon (Starbon) by in situ reductions of Fe3+ ions.
  • Ag nanoparticles on graphene using AgNO3 as a precursor.
  • Ag-Pd/ZrO2 catalytic system applicable in plasmonic catalysis. It can also be used as a source to store as well as generate hydrogen for energy-carrier applications.

分析说明

Assay (hypochlorite): ≥ 98.0 %
Identity (ICP-OES): passes test

警示用语:

Danger

危险分类

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

补充剂危害

储存分类代码

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

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

监管及禁止进口产品

分析证书(COA)

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Sodium Borohydride
Banfi Luca, et al.
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2014)
Synthesis and characterization of robust zero valent iron/mesoporous carbon composites and their applications in arsenic removal
Baikousi M, et al.
Carbon, 93, 636-647 (2015)
Erandi Peiris et al.
Journal of visualized experiments : JoVE, (162) (2020-09-08)
Localized surface plasmon resonance (LSPR) in plasmonic nanoparticles (NPs) can accelerate and control the selectivity of a variety of molecular transformations. This opens possibilities for the use of visible or near-IR light as a sustainable input to drive and control
Ag-stabilized few-layer graphene dispersions in low boiling point solvents for versatile nonlinear optical applications
Sun Zhenyu, et al.
Carbon, 62, 182-192 (2013)
Hydrogen production from solid sodium borohydride
Gislon P, et al.
International Journal of Hydrogen Energy, 34(2), 929-937 (2009)

实验方案

Fmoc resin cleavage and deprotection are crucial steps for peptide synthesis, yielding the desired peptide after resin detachment.

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