Sodium tetraborate decahydrate, ACS, 99.5-105.0%

Description

CAS: 1303-96-4 | B₄Na₂O₇·10H₂O

It is used in detergents, cosmetics, and enamel glazes. It is likewise employed to prepare buffer solutions in biochemistry, as a fire retardant, anti-fungal compound, in the manufacture of fiberglass, as a flux in metallurgy, neutron-capture shields for radioactive sources, a texturing agent in cooking, and as a harbinger for other boron compounds. The molten borax bath is useful for carbide coating process on metals. It is applied as an efficient metal-free catalyst for Hetero-Michael reactions in an aqueous medium.

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: 1303-96-4
• Molecular Formula: B₄Na₂O₇·10H₂O
• MDL Number: MFCD00149193
• Synonym: Borax, Sodium borate (tetra) decahydrate

• Melting Point: 75°C
• Color: Gray
• Physical Form: Powder
• Quantity: 500 g
• Assay Percent Range: 99.5-105.0%
• Solubility Information: Soluble in water,glycerol and ethanol. Insoluble in acids
• Formula Weight: 381.37 (201.22 Anhydrous)
• Grade: ACS
• Odor: Odorless
• Appearance: Gray Powder
• Density: 1.73 g/cm³ at 20°C
• Chemical Name or Material: Sodium tetraborate decahydrate

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	VZ2275000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only