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Dytek® DCH-99
DYTEK® 1,2-Diaminocyclohexane (DCH-99) is a cyclic aliphatic diamine used in a variety of applications, including urethanes and epoxies. DYTEK® DCH-99 amine is a mixture of cis- and trans-isomers and a clear liquid at room temperature with an amine-like odor.
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Experts (2)
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Identification & Functionality
Chemical Family
Chemical Name
CASE Ingredients Functions
Composite Materials Functions
Fluids & Lubricants Functions
CAS No.
694-83-7
Product Families
Applications & Uses
Applications
Fluids & Lubricants Type
Epoxy Curatives
Epoxy resins cured with Dytek® amines have excellent properties for use in coatings, civil engineering, adhesives, marine, and composite applications.
| Features | Typical Applications |
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Applications
Chelating Agent
- Oilfield
- Textiles
- Water treatment
- Detergents
Epoxy Curing Agents
- Composites
- Flooring/paving
Herbicide intermediates
Polyamide Resin
- Adhesives
- Coatings
- Films
- Plastics
- Inks
Polyurethane/Polyurea
- Extenders
- Catalysts
Scale/Corrosion Inhibitors
Properties
Physical Form
Typical Properties
| Value | Units | Test Method / Conditions | |
| 1,2-Diaminocyclohexane Content | 99 | wt% | |
| 2-Methylpentamethylenediamine Content | 0.1 | wt% | |
| Amine Value | 967 | mgKOH/g | |
| Color | 15 | APHA | |
| Critical Pressure (Pc) | 43.4 | atm | |
| Critical Temperature (Tc) | 409.2 | °C | |
| Critical Vapourization (Vc) | 361.5 | mL | |
| Flash Point | 75 (167) | °C (°F) | Closed Cup |
| Hansen Solubility Parameters (δ) | 11 | ||
| Hansen Solubility Parameters (δd) | 8.6 | ||
| Hansen Solubility Parameters (δH) | 5.8 | ||
| Hansen Solubility Parameters (δp) | 3.5 | ||
| Heat of Vaporization (at 185°C) | 106 | cal/g | |
| Hexamethylenediamine Content | 0.1 | wt% | |
| Hydrogen Equivalent Weight | 28.5 | ||
| Melting Point (Cis) | 2 (36) | °C (°F) | |
| Melting Point (Trans) | 15 (59) | °C (°F) | |
| Molecular Weight | 114 | ||
| pH (5% Aqueous Solution) | 12 | ||
| pKa1 (at 30°C (86°F)) | 9.6 | ||
| pKa2 (at 30°C (86°F)) | 6.1 | ||
| Refractive Index (cis, n25 D) | 1.487 | ||
| Specific Gravity (at 20°C (68°F)) | 0.94 | ||
| Viscosity (at 21°C (70°F)) | 7.2 | cP | |
| Volatiles Content | 100 | % | |
| Water Content | 0.1 | wt% | |
| Tg, (DSC, 2nd run) | 176 | °C | |
| HDT | 94 | °C | |
| Shore D Hardness | 86 | ||
| Izod Impact Strength Unnotched | 5.9 | ft-lbf/in2 | |
| Charpy Impact Strength | 4.8 | ft-lbf/in2 | |
| Flexural Strength (X 103) | 12.8 | psi | |
| Elasticity Modulus (X 103) | 439 | psi | |
| Tensile Strength (X 103) | 4.4 | psi | |
| Elongation at Break | 2.4 | % | |
| Vapor Pressure (at 20°C) | 0.387 | mm Hg |
Appearance
Clear and free of suspended materials
Odor
Amine like
Miscible In
Water
Technical Details & Test Data
Molecular Structure
Aspartic Esters
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