Sodium tetraborate, anhydrous, 99.95% (metals basis)

Description

CAS: 1330-43-4 | B4Na2O7 | 201.21 g/mol

Sodium tetraborate is a useful anhydrous borax for proteomics research.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 1330-43-4
• Molecular Formula: B4Na2O7
• Molecular Weight (g/mol): 201.21
• MDL Number: MFCD00081185
• InChI Key: NXSVMNYRVBQCMO-UHFFFAOYSA-N
• Synonym: Borax
• IUPAC Name: disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(ylium)-1,5-diuide-1,5-bis(olate)
• SMILES: [Na+].[Na+].[O-][B-]12O[B+]O[B-]([O-])(O[B+]O1)O2

• Boiling Point: 1575°C (decomposition)
• Melting Point: 741°C
• Color: White
• Physical Form: Powder
• Quantity: 25 g
• Assay Percent Range: 99.95% (metals basis)
• Solubility Information: Slowly soluble in water (87.9g/L).
• Formula Weight: 201.22
• Odor: Odorless
• Refractive Index: 1.501
• Sensitivity: Hygroscopic
• Density: 2.637 g/cm³ at 20°C
• Chemical Name or Material: Sodium tetraborate

Safety and Handling

Hazard Category	H319-H360FD
Hazard Statement	Avoid exposure - obtain special instructions before use. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Precautionary Statement	P201-P202-P264b-P280i-P281-P305+P351+P338-P308+P313-P501c
EINECSNumber	215-540-4
RTECSNumber	ED4588000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only