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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

Description of key information

The PBT Profiler & EPI Suite has estimated that 5-nitrosalicylic acid is expected to be found predominantly in soil and its persistence estimate is based on its transformation in this medium. Its half-life in soil, 30 days.,does not exceeds the threshold (60 days) of being persistent in soil.Therefore, 5-nitrosalicylic acid is estimated not to be persistent in the soil environment.Though 5-nitrosalicylic acid shall diffuse to the extent of 76% in the soil medium, the ready bio-degradability will ensure that the chemical shall be non-persistent in the soil.

Key value for chemical safety assessment

Half-life in soil:
30 d
at the temperature of:
25 °C

Additional information

No. of studies of target substance 5-nitrosalicylic acid reviewed for Biodegradation in soil from reliable sources having Klimisch rating 2.


The summary of the results are presented below





Half life





ready biodegradability


Test mat. analysis


Predicted data from PBT profiler and EPI suite


ready biodegradability

28.399 days

DT50(Dissipation time)


Predicted data from QSAR



By applying weight of evidence approach the target chemical found to be readily biodegradable with half life 28.399 to 30 days. does not exceeds the threshold (60 days) of being persistent in soil Thus it is concluded that 5-nitrosalicylic acid is biodegradable in soil.