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			 Materialization 
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			 The property is colorless and transparent liquid, with a smell of soil, and the impure substance is light yellow. 
			Melting point -47 ℃ 
			Boiling point 155.6 ℃ 
			Relative density 0.947 
			Refractive index 1.450 
			Flash point 54 ℃ 
			Solubility is easily soluble in ethanol and ether 
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