7348
A key factor is the low solubility of Co ( OH ) ( 2 ) in air - saturated solutions at high pH .
 Chemical: Co ( OH ) ( 2 )
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: Co ( OH ) ( 2 )