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229946 Sigma-Aldrich

Sodium tetraborate

99.998% trace metals basis

Synonym: Borax, fused

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Properties

Related Categories Chemical Synthesis, Essential Chemicals, Inorganic Salts, Materials Science, Metal and Ceramic Science,
InChI Key   UQGFMSUEHSUPRD-UHFFFAOYSA-N
assay   99.998% trace metals basis
form   powder
mp   741 °C (lit.)
density   2.367 g/mL at 25 °C (lit.)

Description

Application

Sodium tetraborate, also known as borax(Na2B4O7), can be employed as a catalyst:
• In the chemoselective oxidation of alkyl and aryl sulfides to sulfoxides and sulfones using H2O2 as the oxidant.
• In the synthesis of pyridines, dienes, anilines, and dihydropyrano[3,2-c]chromenes via Knoevenagel condensation and Michael addition pathway.
• In thiolysis of 1,2-epoxides to β-hydroxy sulfides.

Packaging

5, 25, 100 g in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
ED4588000

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Single- & multi-channel pipettes from BRAND
Protocols & Articles
Peer-Reviewed Papers
15

References

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