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Borates

Sodium tetraborate decahydrate (11625)

extra pure, meets analytical specification of Ph. Eur., BP, NF (Borax), assay 99.0 - 103.0%

General Information

  • CAS Number
    • 1303-96-4
  • Molar Mass
    • 381.37 g/mol

Physical Properties

  • Color
    • Colorless
  • Density
    • 1.7 g/cm3
  • Melting Point/Range
    • >= 62 °C (Elimination of water of crystallisation)
    • 742 °C (Anhydrous substance)
  • Odor
    • Odorless
  • pH
    • 9 to 10 (20 °C) as aqueous solution
  • Physical Form
    • Crystalline powder
  • Solubility in Water
    • 20 °C

Safety Information

  • Chemical Stability
    • Stable under normal conditions.
  • Flammability
    • The product is not flammable.
  • Incompatible Materials
    • Strong reducing agents, Strong oxidizing agents
  • Thermal Decomposition
    • Loss of water of crystallization on heating.

International Transportation

  • Harmonized System Code
    • 28401990

General Information

  • CAS Number
    • 1303-96-4
  • Molar Mass
    • 381.37 g/mol

Physical Properties

  • Color
    • Colorless
  • Density
    • 1.7 g/cm3
  • Melting Point/Range
    • >= 62 °C (Elimination of water of crystallisation)
    • 742 °C (Anhydrous substance)
  • Odor
    • Odorless
  • pH
    • 9 to 10 (20 °C) as aqueous solution
  • Physical Form
    • Crystalline powder
  • Solubility in Water
    • 20 °C

Safety Information

  • Chemical Stability
    • Stable under normal conditions.
  • Flammability
    • The product is not flammable.
  • Incompatible Materials
    • Strong reducing agents, Strong oxidizing agents
  • Thermal Decomposition
    • Loss of water of crystallization on heating.

International Transportation

  • Harmonized System Code
    • 28401990
  • CAS Number : 1303-96-4
  • Molar Mass : 381.37 g/mol
  • Melting Point/Range : >= 62 °C (Elimination of water of crystallisation)|742 °C (Anhydrous substance)
  • Solubility in Water : 20 °C
  • Color : Colorless
  • Physical Form : Crystalline powder
  • Density : 1.7 g/cm3
  • pH : 9 to 10 (20 °C) as aqueous solution
  • Odor : Odorless
  • Thermal Decomposition : Loss of water of crystallization on heating.
  • Incompatible Materials : Strong reducing agents, Strong oxidizing agents
  • Chemical Stability : Stable under normal conditions.
  • Flammability : The product is not flammable.
  • Harmonized System Code : 28401990
Property
Value
assay
99.0 - 103.0 %
pH (4 %, 20°C)
9.0 - 9.6
ammonium (NH4)
Max. 10 ppm
arsenic (As)
Max. 3 ppm
calcium (Ca)
Max. 100 ppm
iron (Fe)
Max. 0.002 %
magnesium (Mg)
Max. 0.001 %
heavy metals (as Pb)
Max. 20 ppm
chloride (Cl)
Max. 0.005 %
sulfate (SO4)
Max. 50 ppm
carbonate and bicarbonate
complying
appearance of the solution
complying
residual solvents
complying