• <strike id="wj0he"></strike>
        2. <code id="wj0he"><nobr id="wj0he"><track id="wj0he"></track></nobr></code>
        3. <center id="wj0he"></center>
          <big id="wj0he"></big>
            <center id="wj0he"></center>
                <strike id="wj0he"><nobr id="wj0he"></nobr></strike>
                2. <big id="wj0he"></big>
                

              2. <th id="wj0he"><video id="wj0he"><span id="wj0he"></span></video></th>
                6. <strike id="wj0he"><video id="wj0he"></video></strike>
                <big id="wj0he"><em id="wj0he"></em></big><strike id="wj0he"><sup id="wj0he"></sup></strike>
                  

                  
  
                   
     
     
                  		
  
                  
  
                   
     
                  
        
                   
           
            
          
           
            
          
		      
           
            
          
           
            
          
           
            
          
       
           
            
          
           
            
        
                  
      
                  		
  
                  

                  

  

 


                  



                  

                  


  
 

                  
  
                   
     
      

                  
  
                   
     
                  Products 
        Center 
                  
                        		
  
                  
  
                   
     
  
                  
  
                   
    
                  
        
                   
           
            
        
                  
        
                   
           
            
        
                   
           
            
        
                   
           
            
        
                   
           
            
        
                   
           
            
        
                   
           
            
        
                   
      
                  
        
                   
           
            
        
                  
        
                   
           
            
        
                   
      
                                     		
  
                  
  
                   
     
  
                  
  
                   
    
                  	
      Tel: 86-631-5584118 
                  
      Fax: 86-631-5585188 
                  
      E-mail: jinwei@jinweichemical.com 
                  
      International Trading Dept.:
                  
      86-631-5583884 5583883
                  
      Sales Dept.:
                  
      86-631-5583886 5584168
                  		
  
                  
  
                   
    
  
                  

                  
 
                      		
      
     
                  
        
                   
          
           
                  Products
                  		
        
                  
        
                   
          
        
                  
      
                  
      
                  
        
                   
           
             
                   
              
                  Ultraviolet absorber UV-234
                  
            
                  
            
                  Chemical name:2-[2'-hydroxy-3',5'-bis(.-dimethyl benzyl)-phenyl]benzotriazole
                  
Molecular formula:C22H29N3O
                  
Structural formula:
                  

                  


                  Properties:
                  
Properties and application:It is a very pale yellowish powder, melting point 139.5-141, efficient light stabilizer, used for PE, PP polyester and coatings.
                  


                  Specifications:
                  


                  
	
		
                  
			
			
                  Appearance
                  
			                  		
			
			
                  Light yellow powder
                  
			                  		
		
                  
		
                  
			
			
                  Melting point
                  
			                  		
			
			
                  ≥139.5-141οC
                  
			                  		
		
                  
		
                  
			
			
                  Volatile matter
                  
			                  		
			
			
                  ≤0.5%
                  
			                  		
		
                  
		
                  
			
			
                  Ash content
                  
			                  		
			
			
                  ≤0.05%
                  
			                  		
		
                  
		
                  
			
			
                  Purity
                  
			                  		
			
			
                  ≥99%
                  
			                  		
		
                  
		
                  
			
			
                  Transmissirity
                  
			                  		
			
			
                  460nm≥97%
                  
			500nm≥98%
                  
			                  		
		
                  
	                  

                  


                  Package: 25kg Carton
                  

                  		
        
                  
      
                  		
    
  
                  

                  
 

                  
  
                   
    
  
                  

                  

                  
  
                   
     
      
                  Copyright(C)2016 ,Weihai Jinwei ChemIndustry Co.,Ltd  All Rights Reserved.  Supported 
        by  ChemNet  
        ChinaChemNet Toocle Copyright 
        Notice
                  		
  
                  

                  


亚洲成在人线视频无码,日本成本人片无码免费视频,亚洲成av人片不卡无码,亚洲成在人线aⅴ免费毛片