Number
343-EN
Section
General Section
Use
Sector
Agriculture, forestry, fishery
Other
Function
Adsorbent
Other
Process
Other
Product category
Metal surface treatment products
Application
Ship boilers
Abstract
An oxygen scavenger for ship boilers, that do not contain hydroquinone is available on the market. The substitution was performed by a Scandinavian ship service company.
Substituted substances
Hydroquinone
CAS No. 123-31-9 EC No. 204-617-8 Index No. 604-005-00-4
Chemical group
Phenols
Classification: hazard statements
H351 Suspected of causing cancer
H341 Suspected of causing genetic defects
H302 Harmful if swallowed
H318 Causes serious eye damage
H317 May cause an allergic skin reaction
H400 Very toxic to aquatic life
Alternative Substances
Diethylhydroxylamine
CAS No. 3710-84-7 EC No. 223-055-4 Index No.
Chemical group
Hydroxylamine derivatives
Reliability of information
Evidence of implementation: there is evidence that the solution was implemented and in use at time of publication
Reason substitution
CMR
skin/respiratory sensitizing
other toxic effects
Hazard Assessment
Substance to be substituted: Hydroquinone is hazardous according to SUBSPORTplus database on hazardous chemical (SDSC). The substituted is very toxic to aquatic life, is harmful if swallowed, causes serious eye damage, is suspected of causing genetic defects, is suspected of causing cancer and may cause an allergic skin reaction. Alternative substance: The alternative product contains diethylhydroxyamine in a final concentration of 8.5-22%, combined with a number of not classified ingredients. The product holds R20/21 (harmful by inhalation and in contact with skin) and R36/37/38 (irritating to the eyes, respiratory system and skin). This system of R-phrases is outdated, the new GHS (Globally Harmonised System of Classification and Labelling of Chemicals) replaces the hazardous substance labelling. It is now called H332/312 and H319/335/315 . The products are highly alkaline in their undiluted form and should be handled appropriately.
Description of Substitution
Seahealth Denmark is a private service that operates as a general occupational health service for the sector and for the entire Danish merchant fleet. It provides consultancy services to the sector with specific advice on occupational health within the fields of accident prevention, physical working environment, well-being and health promotion. Seahealth Denmark works among other things with consultancy on chemicals and administers a database on chemical products used onboard ships. This database is background for surveys on chemicals used and general information on possibilities for substitution. Seahealth Denmark found out, that a product used as an oxygen scavenger contained hydroquinone. This substance is an excellent oxygen scavenger, but holds some unfortunate toxicological and carcinogenic properties. Seahealth asked the producer to deliver a product without hydroquinone. This was accomplished after a year. Corrosion can now be sufficiently inhibited with less aggressive chemicals, to a similar price.
Case/substitution evaluation
The new product does not contain classified sensitisers or substances with limited evidence of carcinogenic effect. The substitution has been assessed by the company and customers, and their replies to SeaHealth were positive.
State of implementation
In use
Date and place of implementation
2010, Denmark
Availability ofAlternative
On the market
Producer/Provider
Type of information supplier
Producer / distributor
User
Date, reviewed
November 26, 2021