Silicon in soil solutions is present entirely as monosilicic acid and soils are capable of maintaining a steady concentration in solution despite repeated withdrawals. This concentration is always ...

Continuous increases in atmospheric carbon dioxide (CO 2) concentration has led to significant climate and environmental concerns. CO 2 capture and thermal insulation are effective measures to ...

Silica, NASA reminds us, "is a rock-forming chemical containing silicon and oxygen, commonly found on Earth as quartz." It was found in an area that also had significantly higher levels of ...

We studied the relation between silica and aluminum levels in drinking water and the risk of cognitive impairment using data from a population-based survey of 3,777 French subjects age 65 years and ...

Experiment The zeta potential of four nano-silica slurry samples was measured in two states – both at its original concentration (with a solid content of 10%) and at a state of 30-times dilution in ...

Sand is everywhere. Yet only a certain sort can be used to make the ultra-clear glass required for smartphones and solar panels. It must have a silica concentration of more than 99.9%, against ...