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71320 Sigma-Aldrich

Sodium borohydride

purum p.a., ≥96% (gas-volumetric)

Synonym: Sodium tetrahydridoborate

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Properties

Related Categories Borohydrides, Chemical Synthesis, Reduction, Synthetic Reagents
InChI Key   YOQDYZUWIQVZSF-UHFFFAOYSA-N
grade   purum p.a.
assay   ≥96% (gas-volumetric)
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

Description

Other Notes

Reduction of carboxylic acid derivatives

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.

Safety & Documentation

Safety Information

Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
Reacts violently with water.
RIDADR 
UN 1426 4.3 / PGI
WGK Germany 
2
RTECS 
ED3325000
Protocols & Articles
Peer-Reviewed Papers
15

References

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