Assertion: sodium carbonate | /r/HasProperty | tested in mortar
Facets:
value: for at least 5 minutes
type: TEMPORAL
value: with a pestle
type: OTHER
Source sentences:
text: I consisted of grinding 2O to 30 grams of sodium tripolyphosphate, produced from the sodium carbonate to be tested in a mortar with a pestle for at least 5 minutes.