The effects of Ammonia on the electrification of freezing and splashing water drops
BODHAINE, B. A.
- Publisher: Co-Action Publishing
(issn: 1600-0870, eissn: 0280-6495)
Experiments were undertaken in which 2 mm diameter water drops contaminated with NaCl and/or (NH4)2CO3 were allowed to fall through a cold environment and impinge on an ice target. Charge deposited on the target was measured as a function of environment temperature (0°C to ?30°C) and concentration of the solution (10?6 M to 10?2 M). Maximum negative charge of 2.04 esu/g was produced by 10?4 M NaCl at an environment temperature of ?20°C. Maximum positive charge of 2.79 esu/g was produced by 10?3 M (NH4)2CO3 at an environment temperature of ?30°C. It was possible to suppress and even reverse the usual negative charge of salt by mixing with ammonia, suggesting the possibility of modifying thunderstorm electricity. All solutions weaker than 10?5 M gave complictated waveforms with a net negative charge.DOI: 10.1111/j.2153-3490.1972.tb01573.x