Nontoxic preservatives, function

This series of products possess low density, high specific surface area, high porosity ratio, light blue translucent particles or monoliths. They have low thermal conduction constant, good insulation property, strong adsorptive ability, are environment friendly, nontoxic, fireproof and noncorrosive, with no toxicity to human, and can be widely applied as functional structural interlayer, filling layer and composite layer for thermal insulation and preservation, air purification and water treatment (Figures 40.11 and 40.12). 

---