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.

In order to utilize information in the best way, please take note of the SUBSPORTplus methodology on case stories!

*For a more precise search, use quotation marks ("example").

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Coating for industrial washing machines - from binder based on epoxy/polyester to polyester

A Danish company produces industrial washing machines. They substituted a paint based on epoxy/polyester with a paint based on polyester. This new product is not classified and is much better than the former used product, the technical performance is better and the energy consumption lower, which probably counterbalances a higher price.

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Different ways to phase out halocarbons like dichloromethane in various applications.

This document describes how a large portion of the halocarbons used and manufactured in Sweden were phased out during the late 1980´s and early 1990´s. Several specific examples are mentioned concerning what chemicals were substituted and what the alternatives were. The chemicals discussed are mainly: dichloromethane, trichloroethylene, 1,1,2-Dichloro-1,2,2-trifluoroethane and 1,1,1-trichloroethane.

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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.

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Chemical treatment of rubber, wood, leather or metal which protects, preserves and renews the surface of the material. An alternative to carbon black.

This document describes a process for protecting, preserving and renewing surfaces, especially rubber and other natural and synthetic polymers including wood, leather, painted surfaces and metal. The material to be treated is soaked with an aqueous solution of substituted or unsubstituted dimethylpolysiloxane. This is done in several stages with other solutions such as diethylene glycol and/or glycerine. This treatment reduces the impact of deleterious effects such as ozone, ultraviolet radiation and environmental causes to the appearance of especially rubber parts used for example in automobiles.

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Alternative to thorium oxide in welding rods

Thorium dioxide is used in electric welding as additive to tungsten refractive rods. One of thorium isotopes is hazardous, because is radioactive, therefore alternatives were sought.

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Substitution of a hydrocarbon-based anti-adherent used in industrial welding

A highly flammable anti-adherent compound containing toxic solvents used in welding was substituted by a water-based product. The eliminated product contained dichloromethane which posed serious health hazards since it is a suspected carcinogen and endocrine disruptor. The alternative product contains synthetic oils and water-based anti-corrosion additives.

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SUBSPORTplus Specific Substances Alternatives Assessment – Perchloroethylene

Perchloroethylene is one of the specific substances or substance groups for which a detailed alternatives assessment has been performed by SUBSPORTplus according to a common methodology. In this document the hazard profile and identified uses of perchloroethylene can be found as well as the identification, assessment and comparison of alternatives for its use for dry cleaning.

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Mercury Assessment and Elimination in Health Care Facilities

The report presents six case studies with examples on the substitution of mercury and mercury compounds in USA health care units.
Alternatives include substitution by other chemicals (tungsten for mercury in dilators, zinc chloride for mercury chloride in B-5 fixative, alcohol for mercury in thermometers), but also substitution by other products that do not need mercury (mercury-free vaccines, mercury pressure devices replaced with aneroid units) or situations where the use of mercury-containing parts are no longer required by regulations (switches for automatic collimation of X-Ray tubes).

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Evaluation, selection and criteria for creating the case stories

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