Sulphuric acid was thrown in Mr Filin's face outside his home in Moscow on 17 January.
Mr Zhou used the sulphuric acid to produce fertiliser, turning the enterprise into the biggest compound fertiliser manufacturer in the northeast.
ECONOMIST: Being an entrepreneur in China has its own special problems
Lechuguilla Cave, in New Mexico, USA, is a deep cave, formed over four million years ago by the action of sulphuric acid from groundwater.
The drums, containing hydrochloric acid and sulphuric acid, were stolen from the business in Whitecroft, and later recovered from a property in the same village.
That suggests other compounds are important, too and this, in turn, implies that current climate models, which assume most seeds are made of ammonia or sulphuric acid, may require revision.
But the Jan. 17 attack on the Bolshoi Ballet's artistic director, Sergei Filin, who had sulphuric acid thrown in his face and eyes outside his home, has cast a dark shadow on that ideal.
To their surprise, they discovered that the seed-formation rates for sulphuric acid and ammonia are between a tenth and a thousandth of those needed to account for the cloud seeding actually seen in the atmosphere.
Lunikna's allegations are not believed to be related to the assault on Filin, who had sulphuric acid thrown in this face by a balaclava-clad assailant as he left the Moscow Arts Theatre on 17 January.
To simulate the atmosphere, they have built a special cloud chamber of their own, with the air manufactured from scratch, using liquid nitrogen and oxygen together with precise amounts of trace compounds, including sulphuric acid and ammonia.
With a high sulphuric acid content, the cleaner was so strong that the accident and emergency department at the first hospital the boy attended had to be evacuated, said Michael Robinson, from the Baltimore County Fire Department.
Then he discovered an ailing state-owned sulphuric-acid factory in the city of Jinzhou.
ECONOMIST: Being an entrepreneur in China has its own special problems
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