Case story database

Search for Successfully Implemented Alternatives

You can use the free text search function to find information in the case story database. Most suitable are: substance name and other substance identifier (EC- and CAS-number). You can refine your search after first entry for sector-, function- and process-categories. The case studies are meant to serve as source of inspiration and ideas for substitution. The alternatives are constantly being developed further. We therefore recommend that you to check in each individual case whether an alternative is suitable for your applications and purposes. If you are aware of any other relevant information that is not mentioned in the current case story, please contact SUBSPORTplus.

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Substitution of boric acid in metal processing

Mixtures containing boric acid are widely used in metal processing. Boric acid is a substance of very high concern: it is toxic to reproduction and, therefore, included on the REACH candidate list for authorisation, as well as on the SIN list (https://sinsearch.chemsec.org/chemical/10043-35-3).
The company is working mainly with the refurbishment of various car parts, and aimed to avoid this hazardous substance in their daily work. As a result of changing the polishing technologies, the work environment is safer because emulsions, including ones containing boric acid, does not have to be used at all to repair car clutch parts.

Substitution von Borsäure durch Milchsäure als Biozid in Kühlschmierstoffen

Borsäure ist als reproduktionstoxischer Stoff der Kategorie EU 1B sowie als endokrin wirksamer Stoff eingestuft. Sie kann mit guten Ergebnissen durch Milchsäure substituiert werden, um das Wachstum von Bakterien und Pilzen in wassermischbaren Kühlschmierstoffen zu bekämpfen.

Boric acid-based soldering flux and selenium sulphide-based silver oxidiser phased out in jeweller's workshop.

A jeweller operating a personal workshop implemented a chemical substitution to improve occupational safety at work. After checking the hazard information of all used chemicals, two mixtures were prioritised for substitution: i) soldering flux containing boric acid (CAS: 10043-35-3; EC: 233-139-2) and disodium tetraborate/Borax (CAS: 1303-96-4; EC: 215-540-4). Both are included in the candidate list; and ii) silver processing (tarnishing) mixture containing sodium selenite (CAS: 10102-18-8; EC: 233-267-9). The use of hazardous chemicals in a jeweller?s workshop is a little addressed issue, especially in small sized companies and personal workshops. But personal exposure issues can be a driver to switch to environmentally and health-friendly chemicals and processes.

Substitution of boric acid by lactic acid as biocide in cooling lubricants

Boric acid is classified toxic for reproduction EU 1B and endocrine disruptor. It can be substituted by lactic acid with good results in keeping bacteria and fungi under control in water mixable cooling lubricants.

Im nationalen Zentrum für Gesundheitsdaten und Seuchenschutz in Dänemark (SSI) ausgeführte Substitutionen.

SSI hat es geschafft, Borsäure, Ethidiumbromid und Ether durch Essigsäure, einen nicht-mutagenen DNA-Farbstoff und Natriumhydroxid zu substituieren. Derzeit wird an der Bewertung einer Alternative zu Trypanblau in der Zellfärbung gearbeitet.

Ein Holzschutzmittel ohne Schwermetalle, halogenierte und Phosphor-Verbindungen. Verleiht flammhemmende Eigenschaften und schützt gegen Fäule.

Um Holzwerkstoffe gegen Fäulnis zu schützen, werden normalerweise Biozide wie Kupfer, Chrom und Arsen durch Vakuum-Druck-Imprägnierung aufgebracht. Diese Biozide beeinträchtigen nicht nur die Fäulniserreger, sondern auch die meisten anderen Lebewesen in der Nähe des behandelten Materials. OrganoWood ist ein von Bioziden freies Holzschutzprodukt, das Holz für Fäule unzugänglich macht, indem es an die Oberfläche der Holzfasern bindet. OrganoWood verleiht dem behandelten Holz auch gute flammhemmende Eigenschaften, ohne dass halogenierten und phosphorhaltige Stoffen verwendet werden.

Substitutions performed at the National Centre for Health Data and Disease Control in Denmark (SSI)

SSI have managed to substitute boric acid, ethidium bromide and ether with acetic acid, a non-mutagenic DNA dye and sodium hydroxide. They are currently working on validation of an alternative to Trypan Blue in cell staining.

Substitution of chemical products used for radiography fixation and developing with a digital system

The radiology service of the hospital Parc Taulí, Spain, used several chemical products for fixing and developing X-rays. These products, widely used in hospitals, contain hydroquinone, which is carcinogenic and a neurotoxic and boric acid which is an endocrine disrupter. In 2004 these products were replaced by a digitised radiography system. This is a display of digital medical imaging for diagnostic use with a range of software called RAIM.

Playing dough manufactured without hazardous chemicals, and is eatable

Often, playing dough contains a number of hazardous chemicals, which is a problem since children tend to put things in their mouths. This is an alternative dough, produced to be eatable.

A wood treatment product completely free from heavy metals, halogenated and phosphorus compounds. Gives flame retardant properties and protects against rot fungus.

In order to protect wooden material against rot-fungi, biocides such as copper, chromium and arsenic, are commonly applied through vacuum-pressure impregnation. These biocides affect not only rot-fungus, but most living creatures being close to the treated material. OrganoWood is a wood-treatment product, completely free from biocides, that renders the wood inaccessible for rot fungi by binding to the surface of the wood fibres. OrganoWood also confers good flame retardant properties to the treated wood without use of halogenated and phosphorus containing compounds.

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