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Dytek® HMD
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Producer: 
INVISTA
Brand: 
Dytek
A greater than 99.9% pure aliphatic diamine, available from 70–100 wt% concentrations in water (in Europe, product is also available as 60 wt% solution). Aqueous solutions of 60–80 wt% DYTEK® HMD are liquids. Higher concentrations are solids at room temperature, but shipped (bulk) as warm liquids.

Dytek® HMD

Producer: 
INVISTA
Brand: 
Dytek
A greater than 99.9% pure aliphatic diamine, available from 70–100 wt% concentrations in water (in Europe, product is also available as 60 wt% solution). Aqueous solutions of 60–80 wt% DYTEK® HMD are liquids. Higher concentrations are solids at room temperature, but shipped (bulk) as warm liquids.
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Experts (2)

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Applications & Uses

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Applications
  • Isocyanates
  • Epoxy curing agents
  • Petroleum additives
  • Polyamide resins, adhesives, inks, fibers
  • Scale and corrosion inhibitors
  • Water treatment chemicals

Properties

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Compatible Resins & Binders
Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
1,2-Diaminocyclohexane Content4mpm
2-Aminomethylcyclopentylamine Content19mpm
2-Methylpentamethylenediamine Content3mpm
Boiling Point (100wt%)204°C
Color2APHA
Density (at 25°C, 100wt%)7.09lb/gal
Density (at 25°C, 70wt%)7.74lb/gal
Density (at 25°C, 85wt%)7.47lb/gal
Density (at 25°C, 90wt%)7.38lb/gal
Flash Point (100wt%)85°CCOC
Flash Point (70wt%)116°CCOC
Flash Point (85wt%)107°CCOC
Flash Point (90wt%)102°CCOC
Freezing Point (100wt%)41°C
Freezing Point (70wt%)6°C
Freezing Point (85wt%)24°C
Freezing Point (90wt%)30°C
Heat of Solution in Water (at 43.8°C, 100% HMD)8.2kcal/mol
Hexamethylenediamine Content60-100wt%
Initial Boiling Point (70wt%)111.5°C
Initial Boiling Point (85wt%)122.3°C
Initial Boiling Point (90wt%)129.5°C
Molecular Weight116.2
pH (5wt% aqueous)12.4
pKa1 (at 25°C)11.02
pKa2 (at 25°C)10.24
Polarographically Reducible Impurities8mpm
Solubility in Water (at 30°C, 100% HMD)960g/100 g
Specific Gravity (at 25°C, 100wt%)0.854
Specific Gravity (at 25°C, 70wt%)0.929
Specific Gravity (at 25°C, 85wt%)0.9
Specific Gravity (at 25°C, 90wt%)0.889
Vapor Pressure (at 60°C, 100% HMD)3mmHg
Water Content0.1-40wt%

Packaging & Availability

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Shipping Information
DYTEK® HMD Concentration (wt %)
Grade 60*, 70**, 80 85 85-95 100
Shipping Name Hexamethylenediamine Solution Hexamethylenediamine Solid
DOT/IMO Label Corrosive Corrosive
UN Number 1783 2280
Packaging Group II III
Hazard Class 8 8
Form Liquid Solid at 20°C; shipped (bulk) as a warm liquid
Shipping Weights, lb, net
Tank Car 175,000 175,000 175,000 175,000
Tank Truck 45,000 45,000 45,000 45,000
Drum 400 lb/181.44 kg 400 lb/181.44 kg Not Available 380 lb/172.37 kg

* Only available in Europe.
** Not available in Europe.

Documents (2)

Name
Type
Dytek® HMD Technical Data Sheet
Technical Data Sheet
Dytek® HMD Safety Data Sheet
Safety Data Sheet