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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Alternatives to Chromic Acid Cleaners in Laboratories

Chromic acid is widely used in many laboratories for cleaning glassware. Because of the hazards for health and environment some alternatives have been developed as commercial products, but also as laboratory-made substitutes.

Substitution of sulphuric acid with hydrochloric acid for degreasing metal before zinc and chromium plating.

Metallic coating on metal parts is often performed by galvanic processes. To achieve good-looking surfaces of good quality it is necessary to first clean the items. Earlier the company used sulphuric acid for pickling. The acid was heated and therefore some of it evaporated from the tank. By substituting sulphuric acid with hydrochloric acid pickling not only became more efficient, moreover, hydrochloric acid does not need to be heated.

Substitution of acetone used for washing contaminated machine parts

The company manufactures artificial fibres such as acetate yarn, and used large amounts of acetone to wash the contaminated machine parts. Acetone is highly flammable, causes serious eye irritation and has neurotoxic properties. Due to workers health concerns the company wanted to find a safer alternative. With the encouragement and support of the LIFE Fit for REACH project, the company tested an innovative cleaner containing natural microorganisms that degrade oils, greases and particle impurities. The cleaner proved to be a suitable alternative which was technologically feasible, and safer for workers and the environment.

Substitution von Perchlorethylen durch Nassreinigungsverfahren in chemischen Reinigungen

Perchlorethylen wird als Lösungsmittel in der chemischen Reinigung verwendet. Perchlorethylen ist eine sehr gefährliche Substanz mit nervenschädigenden und endokrinen Wirkungen. Arbeitnehmerinnen, die von diesen Problemen betroffenen waren, beschlossen die Eröffnung einer Nassreinigung. Für die Reinigung von Kleidungsstücken nutzt die Nassreinigung Wasser, Wasserdampf und Seife und erreicht ähnliche Ergebnisse wie die chemische Reinigung, nur ohne Gesundheits- und Umweltgefahren.

Substitution of perchloroethylene in dry cleaners’ shops by “wet cleaning” systems.

Perchloroethylene is used as a solvent in dry cleaning. Perchloroethylene is a very toxic substance which is both an endocrine disruptor and a neurotoxicant. Female workers affected by health problems decided to open a “wet-cleaning” shop. Wet cleaning is based on the use water, water vapour and soap for the cleaning of clothes achieving similar results as dry cleaning without health and environmental hazards.

Reinigung von Einzelteilen der Fahrzeuglenkung durch Injektionsfluten

Ein großer Automobilhersteller aus Deutschland reinigte Bauteile für Fahrzeuglenkungen mit einer Reinigungsanlage unter Einsatz von chlorhaltigen Lösungsmitteln. Nun benutzt das Unternehmen eine Anlage zum Injektionsfluten in Kombination mit einem Reiniger, der Kaliumhydroxid und 2-Aminoethanol enthält.

Cleaning of car steering components by injection flooding

A large car manufacturer from Germany cleaned car steering components, with a cleaning unit using chlorinated solvents. Now the enterprise uses an injection flooding plant in combination with a cleaner containing potassium hydroxide und 2-aminoethanol.

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