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8.06373

Sigma-Aldrich

Sodium borohydride

fine granular for synthesis

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Synonym(s):
Sodium borohydride, Sodium tetrahydridoborate
Empirical Formula (Hill Notation):
H4BNa
CAS Number:
Molecular Weight:
37.83
MDL number:
EC Index Number:
241-004-4

vapor pressure

<1 hPa ( 25 °C)

Quality Level

form

solid

autoignition temp.

220 °C

potency

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

expl. lim.

3.02 % (v/v)

reaction suitability

reagent type: reductant

pH

11 (20 °C, 10 g/L in H2O)

bp

500 °C (decomposition)

mp

>360 °C (slow decomposition)

transition temp

flash point 69 °C

density

1.07 g/cm3 at 20 °C

bulk density

350‑500 kg/m3

storage temp.

2-30°C

InChI

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

InChI key

YOQDYZUWIQVZSF-UHFFFAOYSA-N

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1 of 4

This Item
713201.06371452890
vibrant-m

8.06373

Sodium borohydride

vibrant-m

71320

Sodium borohydride

vibrant-m

1.06371

Sodium borohydride

vibrant-m

452890

Sodium borohydride

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

reaction suitability

-

reaction suitability

reagent type: reductant

mp

>360 °C (slow decomposition)

mp

>300 °C (dec.) (lit.)

mp

>360 °C (slow decomposition)

mp

>300 °C (dec.) (lit.)

storage temp.

2-30°C

storage temp.

-

storage temp.

no temp limit

storage temp.

-

bp

500 °C (decomposition)

bp

-

bp

500 °C (decomposition)

bp

-

density

1.07 g/cm3 at 20 °C

density

-

density

1.07 g/cm3 at 20 °C

density

-

General description

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.

Application

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.

Analysis Note

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

signalword

Danger

Hazard Classifications

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

supp_hazards

Storage Class

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

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


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Protocols

Fmoc resin cleavage and deprotection follows the difficult task of detaching the peptide from the resin support and removing all the side-chain protecting groups of the amino acid residues to yield the desired peptide.

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