Precipitated hydrophobic silica

Hydrophobic silica ( silicon dioxide precipitated )Una.700 Una.700mainly will generally get close to water sex Silion dioxide under the condition of appropriate with alkane of silion accidentally the join responds but becomes, make a kind of surface has the solid powder form that the silion oxygen alkane( polysiloxane) connects of gather two oxidize the silion , its hydrophobe contacts Cape can amount to 70-150, not only have the good hydrophobe at the same time but also eliminate to steep the function, applicably in the spinning dying, eliminate to steep the , lubricant, not saturated polyester resin, powder to extinguish fire the products, such as and the silion rubber...etc. in.Packing: PP/woven bag, EVA/woven bag, kraft paper bag Application : Silicon Rubber, antifoaming agent, resin Technique IndexItemIndexappearancewhite powderSiO2%≥98.0PH (5%aq.suspension)5.0-8.0BET Surface Area m2/g≥200Oil Absorption ml/g2.0-3.5Loss on drying(105oC, 2h )4.0-8.0Loss on Ignition(1000oC)≤7.0Iron mg/kgNa2SO4 Content %≤0.5Partical Size μm≤5Packing kg/bag10