Does quartz sand, which contains silicon dioxide, resist alkalis? ?

2019-06-05View Original

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Does quartz sand, which contains silicon dioxide, resist alkalis? ?

Reply #22019-06-05

Generally, it is resistant to acids but not to bases.

Reply #32019-06-06

Dicyansilicon reacts with sodium hydroxide to produce sodium silicate

Reply #42019-06-06

But aren’t many quartz sand filters used in alkaline wastewater? What’s going on with this?

Reply #52019-06-06

But aren’t many quartz sand filters used in alkaline wastewater? What’s going on with this?

Reply #62019-11-21

It can withstand anything as long as it’s not hot concentrated alkali

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