Properties
VESTAMIN TMD is a low viscosity liquid miscible in water in all proportions at ambient temperatures. It is strongly alkaline with a pH value of 11.6 for a 0.1 N solution. VESTAMIN TMD is soluble in a wide range of polar organic solvents including esters and alcohols. VESTAMIN TMD undergoes chemical reactions typical of aliphatic amines, i.e., with phosgene, aldehydes, epoxy resins, organic acids, ketones, etc. The reactivity of the individual isomers does not vary significantly.
Application
VESTAMIN TMD shows behavior similar to hexamethylene diamine, but it has unique properties which enable it to be used in many special applications. Typical applications include the production of hardeners for epoxy resin systems and the synthesis of polyamides and polyurethanes. lt is also the starting point for synthesis in the field ofanti-corrosives,emulsifiers,vulcanization accelerators, pesticides, textile auxiliaries, flotation media, lubrication oil additives, etc.
Epoxy hardener
Compared to other short chain aliphatic diamines, VESTAMIN TMD has a longer pot life, without slowing the final cure. Products cured with VESTAMIN TMD are clear and non-yellowing with good flexibility and chemical resistance. It can be used for all types of epoxy resin applications, such as casting resins for electrical use, solvent free and solvent containing lacquers and coatings.
| Specification | |||
| Property | Value | Unit | Test method* |
| Color (APHA) | max.15 | - | DIN ISO 6271ASTM D1209 |
| Appearance | clear liquid | - | visual |
| Water content | max.0.2 | % by wt. | Karl Fischer** |
| Purity | at least 99.4 | % by wt. | gas chromatography |
| Aminonitrile | <0.15 | % by wt. | gas chromatography |
| Secondary- and tertiary amino compounds | <0.15 | % by wt. | gas chromatography |
| Saturated primary cyclic diamines | max.0.3 | % by wt. | gas chromatography |
* DIN，ISO or ASTM methods describe our analytical procedures in general. The actual methods used internally are more precise and can be obtained upon request.
** Modified by using a solution of 30% salicylic acid in methanol under cooling.
| General physical data | |||
| Property | Value | Unit | Test method |
| Molecular weight C9H22N2 | 158.3 | g/mol | |
| Equivalent weight | 79.2 | g/val | |
| H-active-equivalent weight | 39.6 | g/val | |
| Density at 20℃ | 0.865-0.870 | g/cm | DIN 51 757,ASTM D 2111 |
| Boiling point at 1013 hPa | 232 | ℃ | DIN 53 171 |
| Vapor pressure at 50℃ | <1 | hPa | |
| Viscosity at 23℃ | 6 | mm²/s | DIN 51 562 |
| Viscosity at 20℃ | approx.6 | mPas | DIN EN ISO 3219 (Brookfield) |
| Melting point | -80 | ℃ | ISO 1392 |
| Flash point | 110 | ℃ | DIN EN 22 719 |
Transport and Packaging
VESTAMIN TMD is supplied in 20 kg non-returnable cans and 180 kg non-returnable drums respectively and in bulk. As a result of the existing exceptional approval to the appendix C/GGVE and GGVS we can also deliver this product to European users in rail tank wagons and road tankers provided, however, that such transport is covered by special bilateral agreement concerning appendix I/RID(CIM) or ADR.
For NAFTA: VESTAMIN TMD is supplied in 44 pound non-returnable cans and 397 pound non-returnable drums.
Storage
VESTAMIN TMD is slightly hygroscopic and tends to form carbamates by reaction with atmospheric CO₂. It should be stored free from moisture and carbon dioxide in glass, stainless steel and similar containers. Carbon steel is adequate under normal circumstances but the use of aluminum should be avoided. VESTAMIN TMD is stable for at least one year when stored in original containers at temperatures below 25°C.
Safety and Handling
For information on toxicity and handling, consult our Material Safety Data Sheet for this product.
Special Note
Further information about handling VESTAMIN TMD can be taken from our brochure "VESTAMIN IPD / TMD and V214 -Properties and Handling"(brochure no.43.01.065ew).
