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
      
        
      
        
      
        	            	
      D(-)-lactic acid
      
                
      
	
		
      
			Product name:
			D(-)-lactic acid
		
      
		
      
			English name:
			D(-)-lactic acid
		
      
		
      
			CAS　RN:
			10326-41-7
		
      
		
      
			Molecular formula:
			C3H6O3
		
      
		
      
			Molecular weight:
			90.08
		
      
		
      
			Structural formula:
			
		
      
		
      
			Properties:
			Colorless to yellowish clear and viscous liquid with sligth sour.
		
      
		
      
			Quality index:
			
			
      
				
					
      
						Content %: ≥92
						Heavy metal: ≤5ppm
					
      
					
      
						Optical content D/(L+D)%: ≥99.0
						Iron: ≤5ppm
					
      
					
      
						Color: ≤50apha
						Relative density(20/20℃): 1.20-1.22
					
      
					
      
						Color: ≤50apha
						Sulfate: ≤10ppm
					
      
					
      
						Sulfuric acid ash powder %: ≤0.02
						Chloride: ≤10ppm
					
      
					
      
						Packing: 25kg or 255 kf plastic drum.
						 
					
      
				      
			
      
			      		
		
      
		
      
			Physical & chemical properties:
			Boiling point: 125℃(92% solution)
      
			Viscosity: 5～60 mPa.s (25℃) (50～90% solution)
      
			Decomposition temperature: Min 200℃      		
		
      
		
      
			Application:
			Used in the production of chiral drug and in the synthesis of pesticide intermediate.
		
      
		
      
			Packing:
			Net weight 250KG, PE drum; net weight 20KG, PE drum; or upon customer's request.
		
      
		
      
			Storage:
			Keep in cool and dry place.
		
      
		
      
			Shelf life:
			24 months if unopened since the date of production.
		
      
	      

      

      
        	
        	
            
      Back