It is then allowed to stand twenty-four hours, filtered, washed with dilute ammonia, dried, ignited to constant weight and weighed, the filter paper being incinerated separately after moistening with nitric acid.
The disulphonate is more readily obtained by moistening the nitrilosulphonate with dilute sulphuric acid and letting it stand for twenty-four hours, after which it is recrystallized from dilute ammonia.
Similar to the " etched figures " produced 7' by moistening an octahedron of alum, and have probably been produced, like them, by the action of some solvent.
The water used may be turbid or clear, and it acts, not only for moistening the soil, but as manure.
For the same purpose a small quantity of water (up to 2%) may be added either by moistening the clinker or by blowing steam into the mills in which the clinker is ground.