真实国产乱人伦精品视频|国产区图片区小说区亚洲区|人妻少妇精品视频一区二区三区|一道本不卡免费一区二区三区|

<video id="clq6k"></video>

    <bdo id="clq6k"><td id="clq6k"><video id="clq6k"></video></td></bdo>
    1. 

      4. <nobr id="clq6k"><tr id="clq6k"><ol id="clq6k"></ol></tr></nobr>
    4. 

      <nobr id="clq6k"></nobr>
      6. <option id="clq6k"></option>
      

      7. <option id="clq6k"><sup id="clq6k"></sup></option>
    8. 

        12. 

        
  
    
    
  

        

         
  
        
    
  
        

        


        
     
        



        

          
        >> Tel : +86-936-4458369
        
>> Mobile : +86-13812304408  
        
                     +86-13776461818 
        
>> E-mail : sales@tongshichem.com
        
                     384922761@qq.com
        

        

        
     
        
         
        
         
        
                      
        Ammonium bifluoride
        
           
        
	
		
        
			Molecular formula
			NH4HF2
		
        
		
        
			Molecular weight
			57.04
		
        
		
        
			CAS    NO
			1341-49-7
		
        
		
        
			Characters
			White orthorhombic crystal
		
        
		
        
			Use
			Used for carving for china and glass.
		
        
		
        
			Specification
			Analytically pure , chemically pure
		
        
		
        
			Executive standard
			GB/T 1278-1994
		
        
		
        
			Technical index
			
			
        
				
					
        
						
						
        Name
        
						        		
						Analytically pure (%)
						Chemically pure(%)
					
        
					
        
						
						
        Content
        
						        		
						
						
        ≥98.0
        
						        		
						≥97.0
					
        
					
        
						
						
        Ignition residue(Sulfate)
        
						        		
						
						
        ≤0.01
        
						        		
						≤0.05
					
        
					
        
						
						
        Chloride(Cl)
        
						        		
						
						
        ≤0.001
        
						        		
						≤0.005
					
        
					
        
						
						
        Sulfate(SO4)
        
						        		
						
						
        ≤0.005
        
						        		
						≤0.01
					
        
					
        
						
						
        Fluosilicate (SiF6)
        
						        		
						
						
        ≤0.2
        
						        		
						≤0.5
					
        
					
        
						
						
        Ferrum(Fe)
        
						        		
						
						
        ≤0.001
        
						        		
						≤0.005
					
        
					
        
						
						
        Heavy metal(Pb)
        
						        		
						≤0.002
						≤0.005
					
        
				        
			
        
			        		
		
        
		
        
			Packing
			500kg for bottle packing, 40kg for pail packing, 25kg for paper plastic packing
		
        
	        

        

        
           
        【Back】
        
         
        
  
        
         
        
  
     


        
    
        Home | About us | Product | News | Quality | Culture | Order | Contact us | 中文版
        

        

        
    
        Copyright(C)2015, Gansu Tongshi Technology Co., Ltd.(Suqian Tongshi Reagent Co.,Ltd.) All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice
        

        

				
				
				
				



新竹县|
郧西县|
通许县|
新晃|
山东|
涟水县|
广河县|
阜阳市|
阿克陶县|
松阳县|
蓬安县|
龙泉市|
大厂|
泰安市|
明溪县|
衢州市|
岢岚县|
大安市|
彩票|
广东省|
广平县|
监利县|
博兴县|
原阳县|
维西|
永修县|
汝州市|
织金县|
通榆县|
搜索|
华坪县|
文水县|
龙胜|
项城市|
柞水县|
博野县|
白玉县|
尚志市|
盐山县|
乐都县|
旌德县|