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1.06306 Supelco

di-Sodium tetraborate

anhydrous for analysis

Synonym: Borax, di-Sodium tetraborate

  • CAS Number 1330-43-4

  • Empirical Formula (Hill Notation) B4Na2O7

  • Molecular Weight 201.22

  •  MDL number MFCD00081185

  •  EC Index Number 215-540-4

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Application Specific Reagents, Reagents for Dissolution Testing
Quality Level   100
vapor pressure   7.3 hPa ( 1200 °C)
potency   >2000 mg/kg LD50, skin (Rabbit)
pH   9.2 (20 °C, 25 g/L in H2O)
mp   742 °C
solubility   25.6 g/L
density   2.37 g/cm3 at 20 °C
bulk density   700 kg/m3
InChI   1S/4B.2Na.7H2O.7O/h;;;;;;7*1H2;;;;;;;/q4*+3;2*+1;;;;;;;;7*-2
InChI key   HJIQVKXMQOLFFS-UHFFFAOYSA-N
storage conditions   Store at +5°C to +30°C.

Description

Analysis Note

Assay (acidimetric): ≥ 98.0 %
Chloride (Cl): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.002 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.002 %
Ca (Calcium): ≤ 0.005 %
Fe (Iron): ≤ 0.001 %

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Safety Information

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