Dytek® DCH-99 1,2-Diaminocyclohexane

Product Information

Molecular Structure
IUPAC Name cyclohexane-1,2-diamine
CAS Number
  • 694-83-7
Other Names
  • cyclohexane-1,2-diamine
  • 1,2-Cyclohexanediamine
  • Cyclohex-1,2-ylenediamine
  • Dytek® DCH-99
Molecular Formula C6H14N2
Molecular Weight 114.192 g/mol
Description A mixture of approximately 30% cis- and 70% trans- isomers and a clear liquid at room temperature with an amine-like odor.
Typical Composition
(wt %)
1,2-Diaminocyclohexane* 99.0
2-Methylpentamethylenediamine 0.1
Hexamethylenediamine 0.1
Water 0.1
Chemical & Physical Properties

Chemical & Physical Properties

Property Name Value
Boiling Point (760 mm Hg), °C (°F) 191 (376)
Melting Point, °C (°F) Cis 2 (36) Trans 15 (59)
Flash Point (Closed Cup), °C (°F) 75 (167)
Specific Gravity, 20°C (68°F) 0.94
Vapor Pressure (mm Hg, 20°C) 0.387
Viscosity (cP, 21 oC, 70 oF) 7.2
Refractive Index (cis, n25 D) 1.487
Solubility in Water Miscible
Hansen Solubility Parameters Overall δ 11
Nonpolar δD 8.6
Polar δp 3.5
H-Bonding δH 5.8
pH, 5% Aqueous Solution 12
pKa1, 30°C (86°F) 9.6
pKa2, 30°C (86°F) 6.1
Amine Value, mg KOH/g 967
H-Equivalent Weight 28.5
Heat of Vaporization, ΔHv, 185°C, cal/g 106
Critical Properties: Tc, °C 409.2 (estimated)
Critical Properties: Vc, mL/ mol 361.5 (estimated)
Critical Properties: Pc, atm 43.4 (estimated)
Volatiles (%) 100
Applications & Uses

Applications & Uses

  • Chelating agent
  • Chain Extender - Polyurethanes
  • Polyamides
  • Epoxy curing agents
  • Catalyst - Polyurethanes
  • Corrosion inhibitor
  • Metalworking fluids

Aspartic Esters


Diethyl maleate

N,N'-1,2-cyclohexanediylbis-, 1,1',4,4'-tetraethyl ester


References in Literature

References in Literature

Showing most recent 1 to 5 of 364

Title Journal or Book Year
Evaluation of the Extraction Efficiency of Enzymatically Treated Flax Fibers dvances in Natural Fibre Composites 2018
Improved Targeting of Cancers with Nanotherapeutics Cancer Nanotechnology 2017
Dynamic Mechanical Thermal Analysis of Epoxy/Thermoplastic Blends Handbook of Epoxy Blends 2017
Eco-Friendly Polythiophene(keto-amine)s Based on Cyclopentanone Moiety for Environmental Remediation Journal of Polymers and the Environment 2017
Sonochemical, spectroscopic study and antibacterial activity of two uranyl Schiff base complexes in nano scale Rendiconti Lincei 2017


Source: Springer Nature

Description: Literature references related to scientific contents from Springer Nature journals and books.



Showing most recent 1 to 5 of 364


Source: PubChem

Description: Data deposited in or computed by PubChem