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silica
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silica

Silicon dioxide, SiO2, the composition of the most common mineral group, of which the most familiar form is quartz. Other silica forms are chalcedony, chert, opal, tridymite, and cristobalite.

Common sand consists largely of silica in the form of quartz.



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Store seeds in a cool, dry, dark place, with a small packet of silica gel to soak up excess humidity - an old sweet or biscuit tin is a good container to use.
A blend of two pheromones applied in concert with a silica gel desiccant dust proved to be the most lethal combination.
The scientists found that silica gel fractionation can effectively separate compounds based on their functional group and greatly simplify the process of identifying individual compounds.
 
 
 
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