Dytek A is 2-methylpentamethylenediamine (MPMD), a clear, low-viscosity liquid free of suspended materials, supplied with CAS number 15520-10-2, molecular formula C6H16N2, and a molecular weight of 116.208 g/mol. For formulators sourcing a reactive diamine for epoxy curing, polyamide synthesis, or polyurethane chain extension, Dytek A offers documented physical and chemical properties based on the manufacturer’s published technical data. This guide summarizes the verified specifications, applications, and sourcing considerations buyers should check before placing an order.
What Is Dytek A?
Dytek A is described on the manufacturer’s data sheet as a clear low viscosity liquid, free of suspended materials. The typical composition is 99.0 wt% 2-methylpentamethylenediamine, with minor amounts of methylcyclopentanediamine (0.6 wt%), 2-ethyltetramethylenediamine (0.3 wt%), and water (0.02 wt%).
Dytek A Chemical and Physical Properties
The following values are taken directly from the manufacturer’s published technical data. Buyers should request the current batch Certificate of Analysis to confirm values prior to large-volume ordering.
| Property | Value |
|---|---|
| Boiling point | 192°C (378°F) |
| Freezing range | -50 to -60°C (-58 to -76°F) |
| Flash point (CC) | 83°C (181°F) |
| Specific gravity, 25°C | 0.86 |
| Viscosity, cP, 25°C | 2.63 |
| Refractive index, nD, 25°C | 1.4588 |
| Surface tension, dyn/cm, 24°C | 34.9 |
| Partition coefficient, Kow | 0.8 |
| Solubility in water | Miscible |
| pH, 5% aqueous solution, 25°C | 12.1 |
| pKa1 / pKa2, 25°C | 11.2 / 10.0 |
| Amine value | 967 mg KOH/g |
| Amine equivalent weight | 58 |
| H-equivalent weight | 29 |
Additional Thermodynamic Data
| Property | Value |
|---|---|
| Heat of vaporization, ΔHv, 193°C | 92.8 cal/g |
| Heat of combustion, ΔHc | 9100 cal/g |
| Critical temperature, Tc | 383°C |
| Critical volume, Vc | 424 mL/mol |
| Critical pressure, Pc | 35.3 atm |
| Hansen solubility parameter, overall δ | 10.4 |
These Hansen solubility parameters break down further into a nonpolar component (δD 8.2), a polar component (δp 3.1), and a hydrogen-bonding component (δH 5.5), which formulators can reference when evaluating compatibility with specific resin or solvent systems.
Applications of Dytek A
According to the manufacturer’s published application list, this diamine is used across the following industrial processes:
- Polyamide plastics, films, and fibers
- Polyamide adhesive and ink resins
- Corrosion inhibitor
- Epoxy curing agents
- Water treatment chemicals
- Metalworking fluids
- Isocyanates
- Chain extenders for polyurethanes
Buyers formulating epoxy curing systems or polyurethane chain-extension chemistry with Dytek A should always confirm stoichiometry against the amine value and amine equivalent weight listed above, since dosage accuracy directly affects cure performance. A common sourcing mistake is applying generic diamine dosage ratios without re-validating against the specific amine equivalent weight of this grade.
Sourcing Dytek A for Your Project
This diamine is one of the recommended international brand products available through our supply chain resource support for formulators working with epoxy, polyamide, and polyurethane chemistries. Safety Data Sheet and Certificate of Analysis documentation is available on request, and buyers should always confirm the current batch specification with their supplier before committing to volume orders.
For buyers comparing curing agents and reactive intermediates, our auxiliary agent product category lists additional curing agents and processing additives suited to epoxy and composite formulations. Resin systems commonly cured with diamine chemistries are available through our unsaturated polyester and vinyl ester resin category. Buyers wanting background on amine curing agent test methodology can review the ASTM Committee D20 on Plastics resource page.
Frequently Asked Questions About Dytek A
What type of chemical is this product?
It is 2-methylpentamethylenediamine (MPMD), CAS number 15520-10-2, a clear low-viscosity liquid diamine with a molecular weight of 116.208 g/mol.
What is it used for?
It is used in polyamide plastics, films, and fibers, polyamide adhesive and ink resins, corrosion inhibitors, epoxy curing agents, water treatment chemicals, metalworking fluids, isocyanates, and chain extenders for polyurethanes.
What is the amine value and equivalent weight?
The amine value is 967 mg KOH/g, with an amine equivalent weight of 58 and an H-equivalent weight of 29, per the manufacturer’s technical data.
Is this diamine soluble in water?
Yes, it is miscible with water, with a pH of 12.1 for a 5% aqueous solution at 25°C.
Can you provide technical documentation?
Yes, Safety Data Sheet and technical data sheet documentation are available on request, and our team can confirm packaging, lead times, and bulk pricing for your target volume.
Request a Quote for Dytek A
If your formulation calls for a documented reactive diamine for epoxy curing, polyamide synthesis, or polyurethane chain extension, contact our team with your target application, required purity, and order volume. We can confirm current lead times, packaging options, and technical documentation for Dytek A.
