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 acetate
      
                
      
	
		
      
			Product name:
			Ethyl acetate
		
      
		
      
			English name:
			Ethyl acetate
		
      
		
      
			CAS RN:
			141-78-6
		
      
		
      
			Molecular formula:
			C4H8O2
		
      
		
      
			Molecular weight:
			88.11
		
      
		
      
			Properties:
			Colorless transparent liquid
		
      
		
      
			Quality standard:
			
			
      
				
					
      
						Index: QB/T2244-2010
						Relative density(25/25℃); 0.894-0.898
					
      
					
      
						Refractive index(20℃): 1.3710-1.3760
						Ester content%: ≥99.0
					
      
					
      
						Acid value: ≤1.0
						Packing: 22kg or 190kg
					
      
				      
			
      
			      		
		
      
		
      
			Application:
			Used in the preparation of essence, paint, solvent, etc.
		
      
	      

      

      
        	
        	
            
      Back