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The Sirius Effect:  This article will explain chelates and the road to more environmentally friendly versions. As chelates are pretty active, if not aggressive, materials, engineering a green chelate without giving in on their characteristics poses a challenge. At the moment Sirius is working with a manufacturer to bring an effective, biodegradable chelate manufactured without using toxic cyanides or nitriles, to the market, in powdered and granulated form. Ideally it should reach the market in the next few months. Just like good chelates, Sirius and its partners do not sit still. Chelating agents are a critical addition in many applications where salts need to be carried into or out of a system. In agriculture, for example, trace elements are administered to plants in tiny ppm levels. In cleaning and water treatment, salts are removed before even the lowest concentrations can initiate lime scale and other deposits. Chelates are your persistent transport molecules for capturing the ions that form such trace elements and salts. Chelates build extremely powerful complexes with ions; they are able to tear ions out of crystal forms. Thus, unwanted deposits are dismantled or at least stopped from further growth. The word ‘chelate’ dates back to the Greek word for crab scissors; ‘chele’.

The market for automatic dish washing tabs has grown significantly in the recent years, especially due to the user convenience of tabs versus loose powder. The manufacture of tabs in Europe has reached the order of magnitude 11 billion pieces per year.