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Environmental fate & pathways

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The relevant part of the submission item Guanidine carbonate is the Guanidine (CAS 113-00-8) as discussed in the section on Environmental fate and pathways above. It is present as the Guanidinium kation (see section Dissociation constant). The carbonate, which is fully mineralized, is negligible for the environmental assessment and disregarded in the following discussion.

Hydrolytic stability is experimentally evidenced. Due to the lack of absorption of daylight, direct photolysis can be excluded. Indirect photolysis by hydroxylation is a relevant sink of airborne Guanidine.