Product Name

  • Name

    Heptamethyldisilazane

  • EINECS 213-061-5
  • CAS No. 37074-17-2
  • Density 0.797
  • Solubility Decomposes
  • Melting Point
  • Formula C7H21 N Si2
  • Boiling Point 150 ºC
  • Molecular Weight 175.421
  • Flash Point 27 ºC
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes R10-36/37/38;
  • Molecular Structure Molecular Structure of 37074-17-2 (Heptamethyldisilazane)
  • Hazard Symbols Xi
  • Synonyms N,N-Bis(trimethylsilyl)methylamine
  • PSA 3.24000
  • LogP 2.58800

Heptamethyldisilazane Chemical Properties

Molecular Structure of Heptamethyldisilazane (37074-17-2):

Systematic Name: N,N-Bis(trimethylsilyl)methanamine 
Molecular Formula: C7H21NSi2
Molecular Weight: 175.4193
SMILES: N(C)([Si](C)(C)C)[Si](C)(C)C
InChI: InChI=1/C7H21NSi2/c1-8(9(2,3)4)10(5,6)7/h1-7H3
InChIKey: ZSMNRKGGHXLZEC-UHFFFAOYAU
H bond acceptors: 1
H bond donors: 0
Freely Rotating Bonds: 2
Index of Refraction: 1.413
Molar Refractivity: 55.63 cm3
Molar Volume: 222.8 cm3
Surface Tension: 17.3 dyne/cm
Density: 0.787 g/cm3
Flash Point: 43.9 °C
Boiling Point: 149 °C at 760 mmHg
Enthalpy of Vaporization: 38.59 kJ/mol
Vapour Pressure: 4.11 mmHg at 25 °C
Water Solubility: 222.5 mg/L at 25 °C

Heptamethyldisilazane Safety Profile

Safety Information of Heptamethyldisilazane (37074-17-2):
RIDADR: 2924
HazardClass: 3.2
PackingGroup: III

Heptamethyldisilazane Specification

  Heptamethyldisilazane (37074-17-2) is colorless clear liquid, insoluble in water, soluble in organic solvents. It becomes form of  salts in acids. Heptamethyldisilazane (37074-17-2) is also known as N,N-Bis(trimethylsilyl)methylamine ; N,1,1,1-Tetramethyl-N-(trimethylsilyl)silanamin ; N,1,1,1-Tetramethyl-N-(trimethylsilyl)silanamine ; N,1,1,1-Tetramethyl-N-(trimethylsilyl)silylamine ; Silanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)- . It is used as group protecting agent widely used in pesticides, veterinary.

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