Agricultural perlite horticultural perlite hydroponics perlite(expanded perlite)
Type:expanded perlite
Appearance:white,graular shape
H.S code:6806200000
1.Size :1-3mm,2-4mm,3-6mm,4-8mm,etc
2.Chemicals and physical properties
Composition
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Al2O3
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SiO2
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Fe2O3
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CaO
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Na2O
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K2O
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MaO
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Percentage
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12-16
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68-75
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0.1-2
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0.15-1.5
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4-5
|
1-4
|
0.3
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Item
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Specification
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Item
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Specification
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Bulk density
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80-120kgsm3(as per customer’s demands)
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Thermal conductivity
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0.021-0.054
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Appearance
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white color , granular
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Softening point
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890-1090 ºC
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Melting point
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1280-1350 ºC
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Vickers hardness
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5.5-7
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PH
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6.5-7.5
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Water soluble
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<0.1%
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Acid soluble
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<2%
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Dioptre
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1.483-1.506
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Features
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Low density poisonless,tasteless,stalelessnoncombustible ,
acid-resistant,alkali-resistant,Fireproofing,sound proofing ,
light weight ,etc
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