25462
X - ray diffraction pattern identification software and an inorganic X - ray diffraction database showed the origin of the sharp peaks to be due to sodium sulphate polymorphs .
 Chemical: sodium sulphate
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: sodium sulphate