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
      
        
      
        
      
        	            	
      Acetal
      
                
      
	
		
      
			Product name:
			Acetal
		
      
		
      
			English name:
			Acetal
		
      
		
      
			CAS RN:
			105-57-7
		
      
		
      
			Molecular formula:
			C6H14O2
		
      
		
      
			Molecular weight:
			118.18
		
      
		
      
			Properties:
			Colorless or light yellow transparent liquid with fresh fruit flavor.
		
      
		
      
			Structural formula:
			
		
      
		
      
			Quality index:
			
			
      
				
					
      
						Index name Q/GHSA1086-1999
						Index
					
      
					
      
						Aldehyde content %
						≥97.0
					
      
					
      
						Relative density(20℃)g/ml
						0.824-0.828
					
      
					
      
						Refractive index(20℃)
						1.378-1.386
					
      
					
      
						Acidity(in H+)mmol/100g
						≤0.33
					
      
					
      
						Arsenic (As)%
						≤0.0003
					
      
					
      
						Heavy metal(in Pb計(jì))
						≤0.001
					
      
					
      
						Chloride(Cl)%
						≤0.0005
					
      
					
      
						Evaporation residue %
						≤0.002
					
      
				      
			
      
			      		
		
      
		
      
			Use:
			Used in the preparation of spice, liquor, organic solvent, etc.
		
      
		
      
			Packing:
			20kg/drum
		
      
		
      
			Influence to environment:
			 
		
      
		
      
			Laboratory monitoring method:
			Gas chromatographic method
		
      
		
      
			Emergency treatment:
			 
		
      
	      

      

      
        	
        	
            
      Back