摘要:
Azodicarbonamide (ADA) in the form of a micronised dry powder, said powder having a granulometric distribution of particles wherein the particles of the powder have a mean diameter (d50) equal to or less than 2 μm and a 90% diameter (d90) equal to or less than 4 μm.
摘要:
Compositions useful in methods of disinfecting contain azoic compounds of the general formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and each represents an atom of hydrogen or an aliphatic or aromatic hydrocarbon radical comprising from 1 to 6 carbon atoms; X.sup.1 and X.sup.2 are identical or different and each represents an oxygen atom or an NR.sup.5 group, wherein R.sup.5 is a hydrogen atom, an aliphatic or aromatic hydrocarbon radical comprising from 1 to 6 carbon atoms, or a nitro group; and wherein when two NR.sup.5 groups are simultaneously present each R.sup.5 may be identical to or different from the other. Compositions containing the azoic compounds in a liquid medium at concentrations of from 35 .mu.gr/ml to 2 mgr/ml are sufficient to impede replication and proliferation of viruses of the retrovirus group yet they are insufficiently toxic to destroy sound human or animal cells which come in contact with the compositions. Methods of disinfecting using the compositions are also provided.