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Procedures for the generation of formaldehyde vapour to fumigate structures
Author(s) -
CONNOLLY G. P.,
FLETCHER J. T.
Publication year - 1981
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1981.tb01264.x
Subject(s) - potassium permanganate , formaldehyde , spore , botrytis cinerea , mixing (physics) , biology , mixing ratio , permanganate , potassium , nuclear chemistry , chromatography , botany , chemistry , organic chemistry , biochemistry , physics , quantum mechanics
SUMMARY Formaldehyde gas concentrations were measured following the mixing of potassium permanganate and formalin within a 1 ‐m 3 chamber. Similar concentrations of gas were measured irrespective of the order of mixing of the reactants at the lower ratios used (1 KMnO 4 :4–8 formalin), but at the higher ratio (1:2–4) more gas was produced when the KMnO 4 was added to the formalin than when the reverse sequence was followed. Spores of Botrytis cinerea were all killed at the dosages tested (0.18–0.30 mg formaldehyde per litre).