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Organic Compounds

Tris(hydroxymethyl)aminomethane (33787)

meets analytical specification of Ph. Eur., assay (calc. to the dried substance) 99.0 - 100.5%

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An organic amine proton acceptor. It is used in the synthesis of surface-active agents and pharmaceuticals; as an emulsifying agent for cosmetic creams and lotions, mineral oil and paraffin wax emulsions, as a biological buffer, and used as an alkalizer. (From Merck, 11th ed; Martindale, The Extra Pharmacopoeia, 30th ed, p1424)

General Information

  • Application
    • Industrial
  • CAS Number
    • 77-86-1

Physical Properties

  • Physical Form
    • Crystalline powder
  • Odor
    • Odorless
  • pH
    • 10.2 to 10.6 at 6 g/l 20 °C
  • Vapor Pressure
    • No data available
  • Solubility
    • 26 g/l, Methanol 25 °C
  • Boiling Point/Range
    • 288 °C 101 kPa
  • Melting Point/Range
    • 170 °C
  • Color
    • Colorless

Safety Information

  • Thermal Decomposition
    • No decomposition if used as directed.
  • Flammability
    • Not auto-flammable
  • Chemical Stability
    • Stable under recommended storage conditions.
  • Incompatible Materials
    • Strong acids, Oxidizing agents, Nitrates
  • Self Ignition
    • The substance or mixture is not classified as pyrophoric.

International Transportation

  • Harmonized System Code
    • 29221900

General Information

  • Application
    • Industrial
  • CAS Number
    • 77-86-1

Physical Properties

  • Physical Form
    • Crystalline powder
  • Odor
    • Odorless
  • pH
    • 10.2 to 10.6 at 6 g/l 20 °C
  • Vapor Pressure
    • No data available
  • Solubility
    • 26 g/l, Methanol 25 °C
  • Boiling Point/Range
    • 288 °C 101 kPa
  • Melting Point/Range
    • 170 °C
  • Color
    • Colorless

Safety Information

  • Thermal Decomposition
    • No decomposition if used as directed.
  • Flammability
    • Not auto-flammable
  • Chemical Stability
    • Stable under recommended storage conditions.
  • Incompatible Materials
    • Strong acids, Oxidizing agents, Nitrates
  • Self Ignition
    • The substance or mixture is not classified as pyrophoric.

International Transportation

  • Harmonized System Code
    • 29221900
  • Application : Industrial
  • CAS Number : 77-86-1
  • Physical Form : Crystalline powder
  • Odor : Odorless
  • pH : 10.2 to 10.6 at 6 g/l 20 °C
  • Vapor Pressure : No data available
  • Solubility : 26 g/l, Methanol 25 °C
  • Boiling Point/Range : 288 °C 101 kPa
  • Melting Point/Range : 170 °C
  • Color : Colorless
  • Thermal Decomposition : No decomposition if used as directed.
  • Flammability : Not auto-flammable
  • Chemical Stability : Stable under recommended storage conditions.
  • Incompatible Materials : Strong acids, Oxidizing agents, Nitrates
  • Self Ignition : The substance or mixture is not classified as pyrophoric.
  • Harmonized System Code : 29221900
Property
Value
assay (calc. to the dried substance)
99.0 - 100.5 %
melting range
168 - 174 °C
loss on drying (105°C)
Max. 0.5 %
sulfated ash
Max. 0.1 %
pH (5 %, 20°C)
10 - 11.5
iron (Fe)
Max. 10 ppm
heavy metals (as Pb)
Max. 10 ppm
chloride (Cl)
Max. 100 ppm
related substances (TLC)
complying
IR spectrum
complying
appearance of the solution
complying