Detailed Instructions: This is a paraphrasing task. In this task, you're given a sentence and your task is to generate another sentence which express same meaning as the input using different words.
Q: solubility approximately 50 g/100 ml water ( 20 c ) test for sodium passes test purity water content not more than 3 % ( karl fischer )
A:
test on the presence of sodium positive purity water content not more than 3 % ( karl fischer method )