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According to Regulation (EC) No.1907/2006, Annex XI, Section 2, the testing regime may be adapted because testing is technically not feasible as a consequence of the properties of the substance. As this substance is a solid which behaves as an inorganic substance, the technical limitations of the method are respected and the test requirement is adapted.  This chemical forms hydrogen cyanide (HCN, CAS RN 74-90-8) when it is placed in water of pH 7.