Assertion: ammonia's water | /r/HasProperty | boiled for some time
Facets:
Source sentences:
text: Any one can satisfy himself of the delicacy of the test by the following: Add a spoonful of water, free from ammonia (water that has been boiled for some time), a single drop of ordinary ammonia; then add a drop of this to a tumbler of water that has been well boiled, and apply the test in the manner described above.