<option id="yy00c"><option id="yy00c"></option></option>
<td id="yy00c"><noscript id="yy00c"></noscript></td>
  • <td id="yy00c"><kbd id="yy00c"></kbd></td>
  • <td id="yy00c"><rt id="yy00c"></rt></td>
  •    
    Products Navigation
     
      
      
      
    Palygorskite
      
      
      
      
      
    Medical stone
      
    Cobble
      
      
    Colored sand
      
      
    CaCO3
      
      
      
    Website Position:Perlite Pearlite

    Perlite Pearlite

    Perlite is an amorphous volcanic glass which has a relatively high water content and occurs naturally. It has one of the most unusual property, i.e. it greatly expands when sufficiently heated.

    Properties and Uses of Perlite
    Perlite becomes soft, as it is a glass, at a temperature of 850-900°C. The trapped water in the structure of perlite escapes and makes the material to expand 7 - 15 times of its original volume. The expanded material is brilliant white in color because of the reflectivity of the trapped bubbles.

    The density of raw perlite or the unexpanded perlite is around 1100 kg/m3 (1.1 g/cm3). The density of typically expanded perlite is 30 - 150 kg/m3.

    Since perlite has low density and is relatively economical, it is used commercially in following ways:

    Construction and manufacturing fields.
    Lightweight plasters and mortars, insulation, ceiling tiles and filter aids.
    In horticulture, it makes composts more open to air, while having still a good water-retention properties.
    It makes a good medium for hydroponics.
    It is also used in foundries and cryogenic insulations.
    Analysis of Perlite

    70-75% silicon dioxide: SiO2
    12-15% aluminum oxide: Al2O3
    3-4% sodium oxide: Na2O
    3-5% potassium oxide: K2O
    0.5-2% iron oxide: Fe2O3
    0.2-0.7% magnesium oxide: MgO
    0.5-1.5% calcium oxide: CaO

    3-5% loss on ignition (chemical / combined water)

     

     

     

     

     

     

     

     
    Http://m.velioglugroup.com Email:lizhigang1980@tom.com
    Manager:Mr.Li Mobile Phone:86-15931189750 TEL:86-0311-82612297 FAX:86-0311-87727683

    Address:North Youyi street No.398·ShiJiaZhuang City·HEBEI·CHINA
    Copyright:Lingshou minerals processing factory
    Factory Address:Lingshou County

     

    99久久国产精品男女性高爱网址|丁香五月综合久久激情|I国产欧美日韩综合视频一区二区|亚洲黄色免费网站站
    <option id="yy00c"><option id="yy00c"></option></option>
    <td id="yy00c"><noscript id="yy00c"></noscript></td>
  • <td id="yy00c"><kbd id="yy00c"></kbd></td>
  • <td id="yy00c"><rt id="yy00c"></rt></td>