LANTHANUM(III) SULFATE NONAHYDRATE 99.&

LANTHANUM(III) SULFATE NONAHYDRATE 99.& 화학적 특성, 용도, 생산

• 화학적 성질

  hexagonal prisms; decomposes at white heat; refractive index 1.564 (20°C) [HAW93] [MER06]

• 물리적 성질

  White hexagonal crystals; density 2.82 g/cm³; slightly soluble in cold water, solubility decreasing with temperature; insoluble in ethanol; dehydrates in the air at 400°C.

• 용도

  Lanthanum sulfate is used to prepare many lanthanum compounds.

• 제조 방법

  Lanthanum sulfate is prepared by dissolving lanthanum oxide, hydroxide or carbonate in sulfuric acid, followed by crystallization.
  La₂O₃ + 3H₂SO₄ → La₂(SO₄)₃ + H₂O
  La₂(CO₃)₃ + 3H₂SO₄ → La₂(SO₄)₃ + 3CO₂ + 3H₂O
  .

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