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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Extensive reviews and study citations on the environmental behaviour of 4 -Nitrophenol have been published (BUA report No.75 1992, IPCS CICAD 2000, ECB IUCLID 2000):

The major partition of 4 -Nitrophenol is expected to be particle bound and therefore only to a minor extent available for photochemical reactions. Thus, most of the 4 -Nitrophenol can be washed out from air by wet and dry deposition (IPCS CICAD 2000). A half-life for the reaction with 4 -Nitrophenol with OH-radicals in the atmosphere was calculated to be 3.7.

Measured half-lives for the photochemical decomposition of 4 -Nitrophenol in water exposed to sunlight ranged from 2.8 to 13.7 days (Hustert et al. 1981, Mansour 1996) being longer with increasing pH (Hustert et al. 1981). Traces of 4 -Aminophenol were found as photoproduct in river water (Mansour 1996).

In experiments conducted according to OECD guidelines, Andrae et al. (1981) and Koerdel et al (1981) found no hydrolysis of 4 -Nitrophenol under environmental conditions (IPCS CICAD 2000).