Acidic particles are important lots of environmental problems.

酸性粒子在许多环境问题中起着重要的作用。

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Disclosed is a color deepening agent containing silica particles which are treated with a silane coupling agent having an amino group under acidic conditions and a polyether-modified polysiloxane.

本发明公开了一种色彩加深剂，所述色彩加深剂包含采用具有氨基 的硅烷偶联剂在酸性条件下处理的二氧化硅微粒和聚醚改性的聚硅氧 烷。

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Opponents in Minisink worry about air emissions of acidic gases and small particles that would fall on nearby farmland.

WSJ: NY town of 9/11 workers wages gas pipeline fight