提供一级137片内射高清视频,www.一区,久久内射,一区二区三区欧美

<rp id="pc8i0"></rp>

<var id="pc8i0"></var>
 

    2. 

    4. 


      
	
      
   
   		
        
       




      
	

      

      

      
	
    
      
    	
      
        	
      PRODUCTS
      
        
      
        
      
        	            	
      Ethyl L(-)-lactate
      
                
      
	
		
      
			Product name:
			Ethyl L(-)-lactate
		
      
		
      
			English name:
			Ethyl L(-)-lactate
		
      
		
      
			Molecular formula:
			C5H10O3
		
      
		
      
			Molecular weight:
			118.13
		
      
		
      
			Properties:
			Colorless and transparent liquid with special odor of rum, fruit and cream. Soluble in most organic solvents.
		
      
		
      
			Quality index:
			
			
      
				
					
      
						Ester content%: ≥99.0
						Moisture(K-F method)%: ≤0.30
					
      
					
      
						Optical content L/ (L+D) %: ≥99. 0
						Ethyl alcohol%: ≤0.50
					
      
					
      
						Color: ≤50apha
						Relative density(25/25℃); 1.030-1.038
					
      
					
      
						Acidity: ≤0.20
						Refractive index(20℃): 1.410-1.420
					
      
				      
			
      
			      		
		
      
		
      
			Physical & chemical properties:
			Boiling point: 154℃ (760 Kpa)
      
			Melting point: -26℃
      
			Flash point: 46℃
      
			Distillation range: 145～160℃
      
			Spontaneous ignition point: 400℃
      
			Viscosity: 2.8 mPa.s (20℃)      		
		
      
		
      
			Application:
			Used in chiral medicine and pesticide fields.
		
      
		
      
			Packing:
			25kg or 200kg plastic drum
		
      
		
      
			Storage:
			Keep in cool and dry place.
		
      
		
      
			Shelf life:
			12 months if unopened since the date of production.
		
      
	      

      

      
        	
        	
            
      Back