Silicic is an adjective to describe magma or igneous rock rich in silica. The amount of silica that constitutes a silicic rock is usually defined as at least 63 percent. [1] Granite and rhyolite are the most common silicic rocks.

In chemistry, a silicic acid (/ s ɪ ˈ l ɪ s ɪ k /) is any chemical compound containing the element silicon attached to oxide (=O) and hydroxyl (−OH) groups, with the general formula [H 2x SiO x+2] n or, equivalently, [SiO x (OH) 4−2x] n.

Silicic acid, a compound of silicon, oxygen, and hydrogen, regarded as the parent substance from which is derived a large family—the silicates—of minerals, salts, and esters. The acid itself, having the formula Si(OH)4, can be prepared only as …

Volcanoes that form over land contain what's called silicic magma, which is high in silica and has a high viscosity. — Sarah Gibbens, National Geographic , 17 May 2018 Most volcano …

2019年5月15日 · Herein we (i) provide a working definition for silicic acid; (ii) identify its omnipresent role in biochemical evolution in excluding aluminium from biota and providing adventitious benefits through biological silicification and (iii) explain how the silicic acid cycle is intrinsic to climate change.

Silicic acid is a chemical compound, a feebly acidic colloidal hydrated type of silica made by acidifying arrangements of alkali metal silicates. It is a compound of Silicon, Oxygen, and Hydrogen viewed as the parent substance from which is inferred a huge family - the silicate - of minerals, salts, and the Silicic Acid Ester.

All rocks high in quartz, which is simply crystalline silica, are silicic. Feldspar is a silicic mineral, and is a major component of many igneous rocks. Some common silicic rocks are granite, granodiorite, and rhyolite.

Silicic acid is a family of chemical compounds consisting of silicon, hydrogen, and oxygen. These compounds can be obtained by acidifying certain silicate salts and are important in the formation of cell walls in algae and in various tissues in the human body.

Although rarely observed, it is the key compound of silica and silicates and the precursor to other silicic acids [H 2x SiO x+2] n. Silicic acids play important roles in biomineralization and technology.

2021年10月14日 · Silicic acid | H8O8Si2 | CID 160563451 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.