• 石川ライト1号

    • 입 도:

      10mm이하

    • 부 피 비 중:

      0.40~0.75

  • 石川ライト2号

    • 입 도:

      4.0mm이하

    • 부 피 비 중:

      0.45~0.75

  • 石川ライトF2号

    • 입 도:

      2.8mm이하

    • 부 피 비 중:

      0.55~0.85

  • 石川ライト3号

    • 입 도:

      1.7mm이하

    • 부 피 비 중:

      0.65~0.95

  • 石川ライト4号

    • 입 도:

      1.0mm이하

    • 부 피 비 중:

      0.75~1.00

  • 石川ライト4S号

    • 입 도:

      1.0mm이하

    • 부 피 비 중:

      0.75~1.10

  • 石川ライト5号

    • 입 도:

      0.5mm이하

    • 부 피 비 중:

      0.8~1.05

  • 石川ライト6号

    • 입 도:

      0.355mm이하

    • 부 피 비 중:

      0.85~1.10

■Characteristics of ISHIKAWALITE

■Rock type:Sedimentary rock(mainly tuff)

Microphotograph of ISHIKAWALITE(30)

Microphotograph of ISHIKAWALITE(180)

■Main composition

Components
(Chemical symbols)
Analytical Value(%)
Silicic anhydride(SiO2) 74.00
Alumina(Al2O3) 12.60
Iron oxide(Fe2O3) 0.99
Calcium oxide(CaO) 0.83
Magnesium oxide(MgO) 0.16
Potassium oxidize(K2O) 4.50
Sodium oxide(Na2O) 3.30
Titanium oxide(TiO2) 0.062
Ignition loss(Ig.loss) 3.40
  • ■Absorption rate:

    29.20%(JIS:R:A5208)

  • ■Prosity test:

    77.6%(ISHIKAWALITE No.1)(JIS:R:2614)

  • ■pH test:

    4.5~7.0

  • ■Acid resistance test:

    60℃ Be sulfuric acid, Be sulfuric acid+concentrated nitric acid 2.3%...unchanged
    30℃ Be sulfuric acid, Be sulfuric acid+concentrated nitric acid 2.3%...unchanged
    ISHIKAWALITE is a natural glass (SiO2), and is extremely stable scientifically.

  • ■Refractoriness:

    SK 3a(C1.140℃)JIS-R2204

  • ■Thermal conductivity:

    180.5℃ 0.280Kcal/mh℃
    302.5℃ 0.348Kcal/mh℃

  • ■Freezing test:

    Left the product for 24 hours at -20℃...Unchanged (JIS-A5208)

  • ■Satirated permeation:

    2.5×10-2m/s

※As ISHIKAWALITE is a natural material, all of the products may not conform to the above data.