The initial use of vermiculite friends are not very clear what is vermiculite? Part of the demand simple and clear use of vermiculite, vermiculite do not quite understand anything? The following explain the specific chemical composition of vermiculite? Answers to your questions: 

 What is vermiculite? 

 Before answering this question, we can go online to search, you can understand the simple definition of vermiculite. Much about. Vermiculite, the chemical formula Mg x (H 2 O) {Mg 3-x [AlSiO 3 O 10 (OH) 2}, is a water magnesium aluminum silicate secondary metamorphic minerals, like mica shape, usually made by the black (gold) mica by hydrothermal alteration or weathering, because of its thermal dehydration expansion was flexure-like shape resembles a leech, so called vermiculite. 

 Vermiculite, the chemical formula (Mg, Ca) 0.7 (Mg, Fe, Al) 6.0 [(Al, Si) 8.0] (OH4.8H2O). The common chemical formula (Mg2.36Fe0.48Al0.16) (Si2.72Al1.28O10 (OH) 2) (Mg0.32 (H2O) 4.32) 

 Vermiculite stage division of vermiculite and expanded vermiculite, golden vermiculite, silver-white vermiculite, white vermiculite can be divided by color. 

 Rapid expansion of 6-20 times the vermiculite after calcination at high temperature volume expansion after accounting for 60-180kg/m3. 

 Specific chemical composition of vermiculite: 

 A golden leech stone composition 
 The the Si02 Ai203 Fe2O3, chemical composition, Mg0 of K2O H20 Ca0 PH other 
 Content (%) 42,188,267 <2 0.8 8.0 <8% 


 Second, the silver-white vermiculite composition 
 Chemical composition of Si02 Ai203 Mg0 Ca0 FeO Fe203 Tio2 
 Content (%) 43.2 12.68 24.2 0.96 1.54 4.06 1.33 




 Chemical composition 
 K2O 
 P205 
 H2O 
 Na20 
 MnO 
 TiO 
 Loss on ignition 

 Content (%) 
 5.95 
 0.08 
 3 
 1.6 
 0.043 
 5.097 
 6.5 



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