7343
Particle formation was observed only for initially air - saturated CoSO ( 4 ) solutions at pH 10 . 6 .
 Chemical: CoSO ( 4 )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: CoSO ( 4 )