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1.06308 Supelco

di-Sodium tetraborate decahydrate

for analysis ACS,ISO,Reag. Ph Eur

Synonym: Borax, Sodium biborate decahydrate, Sodium borate decahydrate, di-Sodium tetraborate decahydrate

  • CAS Number 1303-96-4

  • Empirical Formula (Hill Notation) B4Na2O7 · 10H2O

  • Molecular Weight 381.37

  •  MDL number MFCD00149193

  •  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
grade   ACS reagent
  Reag. Ph. Eur.
  reag. ISO
vapor pressure   0.213 hPa ( 20 °C)
potency   2660 mg/kg LD50, oral (Rat)
  >2000 mg/kg LD50, skin (Rabbit)
pH   9.2 (20 °C, 47 g/L in H2O)
mp   75 °C (Elimination of water of crystallisation)
solubility   49.74 g/L
density   1.72 g/cm3 at 20 °C
bulk density   750 kg/m3
InChI   1S/B4O7.2Na.10H2O/c5-1-9-3(7)11-4(8)10-2-6;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;
InChI key   OJPFLODMGUZMKD-UHFFFAOYSA-N
storage conditions   Store at +5°C to +30°C.

Description

Analysis Note

Assay (acidimetric): 99.5 - 103.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (0.01 M Solution, 25 °C): 9.15 - 9.20
pH-value (4 %, water): 9.0 - 9.6
Chloride (Cl): ≤ 0.0007 %
Phosphate (PO₄): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.001 %
Pb (Lead): ≤ 0.0005 %
Corresponds to ACS,ISO,Reag. Ph Eur

Safety & Documentation

Safety Information

Protocols & Articles

Articles

Analytical Method: Aluminium (total) in ores

Cat.No. 173016  Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017  Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018  Spectroquant® UV/VIS Spectrophotometer Prove 600 o...
Keywords: Sample preparations

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