Here are the reasons Why G-Extral products are unique?

The glutaraldehyde (1,5-pentanedial OCH(CH2)CHO ) -  was synthesized IN 1908.
The GA (glutaraldehyde) formula is C₅H₈O₂ also represented as OHCH₂CH₂CH₂CHO. GA may have different configurations: either the linear configuration (see figure 1) or the cyclic one (see figure 2). The linear configuration of the molecule of GA, fixing the proteins contained in micro-organisms, is the operative one. In other words, the more linear molecules of GA in a disinfecting solution, the more stable and the more efficient the disinfectant will be.

Figure 1: the linear configuration

Unfortunately, unless stabilized, the glutaraldehyde has a tendency to adopt a cyclic configuration as shown in figure 2.



Figure 2: the cyclic configuration

Durotec has developed a stabilising process consisting in anchoring chemically  the GA to a heavy molecule of surfactant on the middle Carbon GA atom, the GA molecule remains in a linear configuration. (see figure 3.)

Figure 3: The structure of glutaraldehyde after the stabilisation process

This combined with the wetting effect of the surfactant ensures that a maximum of efficient molecules of GA will reach the targeted micro-organisms.

As can now be easily understood, the harmful volatility of the traditional GA has also been brought under control. Stabilised Glutaraldehyde products can easily comply with the impending norm of 0.05ppm which is something that very few GA based products can claim inasmuch as often they battle to comply with the 0.2ppm norm. Stabilised GA can be mixed to Quaternary Ammonium Compounds (QAC) to manufacture solutions with more detersive power. Unstable GA mixed with QAC does not become stable!

Thanks to our process, the stabilsed glutaraldehyde products are not altered by an increase in temperature. This cannot be said for unstable GAs mixed with QAC.

Our products are made with the highest purity GAs.

Comparative Table: Formaldehyde / Alkaline pH > 8 Glutaraldehyde / Neutral pH Glutaraldehyde.