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Upon heating of the solutions the lamellar spacing increases , with significant differences in the presence of NaCl or CaCl ( 2 ) as compared to the standard solution .
 Chemical: NaCl; Chemical: CaCl ( 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: NaCl; Chemical: CaCl ( 2 )