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Merck
CN

71320

Sodium borohydride

purum p.a., ≥96% (gas-volumetric)

Synonym(s):

Sodium tetrahydridoborate

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About This Item

Linear Formula:
NaBH4
CAS Number:
16940-66-2
Molecular Weight:
37.83
NACRES:
NA.22
PubChem Substance ID:
57652284
UNSPSC Code:
26111700
EC Number:
241-004-4
MDL number:
MFCD00003518

Key Documents

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Product Name

Sodium borohydride, purum p.a., ≥96% (gas-volumetric)

InChI key

YOQDYZUWIQVZSF-UHFFFAOYSA-N

InChI

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

SMILES string

[BH4-].[Na+]

grade

purum p.a.

assay

≥96% (gas-volumetric)

form

powder

reaction suitability

reagent type: reductant

mp

>300 °C (dec.) (lit.)

anion traces

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

cation traces

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

Quality Level

200

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Application

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. It can also be used as a reducing agent for the synthesis of gold nanoparticles from gold chloride.

General description

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. It is being considered as a promising candidate for hydrogen storage applications.

Other Notes

Reduction of carboxylic acid derivatives

signalword

Danger

Hazard Classifications

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

supp_hazards

EUH014

Storage Class

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

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Regulatory Information

监管及禁止进口产品
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Certificates of Analysis (COA)

Lot/Batch Number
SDBB3442
STBL3757
STBL4966
STBK8191
STBK3716

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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)
hemoselective reductions with sodium borohydride.
Ward D
Canadian Journal of Chemistry, 67(7), 1206-1211 (1989)
G.W. Gribble
ACS Symp. Ser., 641, 167-167 (1996)
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)
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