暗区 opaque area，area opaca

介孔二氧化硅比表面积、总孔容及孔径标准物质，7631-86-9，Specific Surface Area:511m2/g,Total Pore Volume:0.806cm3/g,Pore Diameter:6.31nm，阿拉丁

￥2375.90

MBS树脂;25053-09-2;Opaque impact modifier for PVC application;V62292-500g

￥588

高表面积的二氧化硅纳米颗粒;112945-52-5;small, particle size ~40-50 nm, surface area ~520 m2/g, (KCC-1 S2);V33948-250mg

￥909

亲水型气相纳米二氧化硅Hydrophilic-300型;112945-52-5;≥99.8% metals basis, specific surface area(BET):300m2/g,particle size:7-40nm,Hydrophilic;V33946-100g

￥66

疏水气相纳米二氧化硅Hydrophobic-260型;112945-52-5;≥99.8% metals basis, specific surface area(BET):260m2/g,particle size:7-40nm,Hydrophobic;V33945-500g

￥226