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Physical & Chemical properties

Stability in organic solvents and identity of relevant degradation products

Administrative data

Endpoint:
stability in organic solvents and identity of relevant degradation products
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Experimental data was reviewed by the ECETOC Task Force, author of the JACC Report No. 53, “Cyanides of Hydrogen, Sodium and Potassium, and Acetone Cyanohydrin (CAS No. 74-90-8, 143-33-9, 151-50-8 and 75-86-5)”, 2007. The report is a weight of evidence approach to an extensive body of literature, much of which was undertaken prior to development of guidelines. The report was peer reviewed by the scientific non-governmental organization (NGO), which judged the data to be reliable with restrictions.

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
2007

Materials and methods

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Test substance stable:
yes

Applicant's summary and conclusion

Conclusions:
HCN presents a stable gas in the atmosphere.
Executive summary:

The HCN molecule is strongly bound; it presents a stable gas in the atmosphere. The large enthalpies exclude many theoretically possible endo/exothermic reactions in the gas phase; only those with OH radical and O(1D) are important. Photodissociation is only expected in the upper stratosphere (UV light, λ = 175 - 238 nm).