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Otrzymywanie wodorotlenku miedziowego - fungicydu dla rolnictwa

Komorowska-Kulik J.

Zeszyty Naukowe. Chemia / Politechnika Śląska

2001

z. 142

59-66

A stable Cu(OH)2 obtaining reaction is conducted in the presence of a stabilizer e.g. ammonia or phosphate or glycerine. A stabilizer participates in the process of well ordered crystal structure forming and protects crystal surfaces. Its presence in reacting mixture effects on the crystal size and shape and then has an effect on the active substance washing off from leaf surfaces susceptibility. A simple laboratory method of comparing of susceptiblility of Cu(OH)2 preparations to washing off from leaf surfaces is presented. The investigations indicate that approximated to ball shape particles are more difficult to wash out than needle shaped ones of the similar or even smaller volume. Surface agent presence has radical effect on preparation washing off.