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In chemistry, orthosilicate is the anion SiO4−4, or any of its salts and esters. It is one of the silicate anions. It is occasionally called the silicon tetroxide anion or group. Orthosilicate salts, like sodium orthosilicate, are stable, and occur widely in nature as silicate minerals, being the defining feature of the nesosilicates. Olivine, a magnesium or iron(II) orthosilicate, is the most abundant mineral in the upper mantle.

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  • Ortosilicato (es)
  • Orthosilicate (en)
  • 原硅酸盐 (zh)
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  • 在化学中,原硅酸盐是阴离子 SiO4−4及它所形成的盐类和酯类。它是其中一种硅酸盐阴离子。它也被称为四氧化硅阴离子。 原硅酸盐,如:原硅酸钠是稳定的,在硅酸盐矿物中广泛存在。橄榄石,成分为原硅酸镁和原硅酸亚铁,是上层地幔的主要矿物。 原硅酸根是一种强碱,是非常弱的酸原硅酸 H4SiO4(pKa2 = 13.2 当 25 °C时)的共轭碱。 由于原硅酸容易分解成,因此很难研究这种平衡。 (zh)
  • En química y mineralogía, el ortosilicato es el anión SiO4−4, o cualquiera de sus sales y ésteres. Es uno de los aniones de silicato. Ocasionalmente se llama anión o grupo de tetróxido de silicio.​ Las sales de ortosilicato, como el , son estables y se encuentran ampliamente en la naturaleza como minerales de silicato, siendo la característica definitoria de los nesosilicatos.​ La olivina, un ortosilicato de magnesio o hierro (II), es el mineral más abundante en el manto superior. (es)
  • In chemistry, orthosilicate is the anion SiO4−4, or any of its salts and esters. It is one of the silicate anions. It is occasionally called the silicon tetroxide anion or group. Orthosilicate salts, like sodium orthosilicate, are stable, and occur widely in nature as silicate minerals, being the defining feature of the nesosilicates. Olivine, a magnesium or iron(II) orthosilicate, is the most abundant mineral in the upper mantle. (en)
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  • En química y mineralogía, el ortosilicato es el anión SiO4−4, o cualquiera de sus sales y ésteres. Es uno de los aniones de silicato. Ocasionalmente se llama anión o grupo de tetróxido de silicio.​ Las sales de ortosilicato, como el , son estables y se encuentran ampliamente en la naturaleza como minerales de silicato, siendo la característica definitoria de los nesosilicatos.​ La olivina, un ortosilicato de magnesio o hierro (II), es el mineral más abundante en el manto superior. El anión ortosilicato es una base fuerte, la base conjugada del ácido ortosilícico extremadamente débil H4SiO4 (pKa2 = 13.2 a 25 °C). Este equilibrio es difícil de estudiar ya que el ácido tiende a descomponerse en un condensado de .​ (es)
  • In chemistry, orthosilicate is the anion SiO4−4, or any of its salts and esters. It is one of the silicate anions. It is occasionally called the silicon tetroxide anion or group. Orthosilicate salts, like sodium orthosilicate, are stable, and occur widely in nature as silicate minerals, being the defining feature of the nesosilicates. Olivine, a magnesium or iron(II) orthosilicate, is the most abundant mineral in the upper mantle. The orthosilicate anion is a strong base, the conjugate base of the extremely weak orthosilicic acid H4SiO4 (pKa2 = 13.2 at 25 °C). This equilibrium is difficult to study since the acid tends to decompose into a hydrated silica condensate. (en)
  • 在化学中,原硅酸盐是阴离子 SiO4−4及它所形成的盐类和酯类。它是其中一种硅酸盐阴离子。它也被称为四氧化硅阴离子。 原硅酸盐,如:原硅酸钠是稳定的,在硅酸盐矿物中广泛存在。橄榄石,成分为原硅酸镁和原硅酸亚铁,是上层地幔的主要矿物。 原硅酸根是一种强碱,是非常弱的酸原硅酸 H4SiO4(pKa2 = 13.2 当 25 °C时)的共轭碱。 由于原硅酸容易分解成,因此很难研究这种平衡。 (zh)
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