kaliophilite

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 后过渡金属氧阴离子化合物
• 英文名称: kaliophilite
• 英文别名: potassium aluminium orthosilicate；potassium aluminosilicate；potassium;1-oxido-2,4,5-trioxa-1-sila-3-aluminabicyclo[1.1.1]pentane
• 化学式: Al*K*O₄Si
• 分子量: 158.163
• InChiKey: BLVPVLRUOJHVHB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -8.51
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  92.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  kaliophilite 以 neat (no solvent) 为溶剂， 生成 leucite
  参考文献：
  名称：

  Yamaguchi, Kazuhiro; Kusano, Yoshihiro; Fukuhara, Minoru, Nippon Kagaku Kaishi

  摘要：

  DOI：
• 作为产物：
  描述：

  potassium chloride 在 elaeolite; 作用下， 以 melt 为溶剂， 生成 kaliophilite
  参考文献：
  名称：

  Lemberg, J., Zeitschrift der Deutschen Geologischen Gesellschaft, 1876, vol. 28, p. 603 - 603

  摘要：

  DOI：

文献信息

• Hydrothermal Single Crystal Growth and Structural Investigation of the Nepheline and Kalsilite Stuffed Tridymite Species
  作者：Rylan J. Terry、Colin D. McMillen、Joseph W. Kolis

  DOI：10.1007/s10870-022-00940-6

  日期：2023.3

  A series of high-quality single crystals of the formula NaxK1−xAlSiO4 were synthesized using a high temperature hydrothermal method. This enabled the detailed single crystal study of four examples of this class of compounds, namely KAlSiO4, Na0.10K0.90AlSiO4 Na3KAl4Si4O16 and NaAlSiO4. The potassium-containing species all had fully ordered AlO4 and SiO4 tetrahedral sites that led to formation of polar acentric structures. In contrast NaAlSiO4 displayed the unusual feature of an exceptionally large and complex unit cell along with complete disordering of the Al and Si sites. This led to the formation of a centrosymmetric structure, that is also a new polymorph of the NaAlSiO4 composition. The polymorphism of hydrothermal KAlSiO4 was also examined in light of the crystal’s synthetic and thermal histories. The study also revealed a structural sensitivity toward the degree of Na/K substitution in the lattice. The strong tendency to form polar acentric structures makes understanding these structures of great interest. These detailed structures resolved a considerable degree of previous structural ambiguity within this nominally simple class of compounds. Structural subtleties are examined in the nepheline–kalsilite series of NaxK1−xAlSiO4, revealing changes in the resulting structure according to synthetic method, thermal history, and alkali metal substitution.

  我们使用高温水热法合成了一系列高质量单晶体，其化学式为NaxK1−xAlSiO4。这使我们能够对这类化合物的四个实例进行详细的单晶体研究，即KAlSiO4、Na0.10K0.90AlSiO4、Na3KAl4Si4O16和NaAlSiO4。含钾的物质都具有完全有序的AlO4和SiO4四面体位点，从而形成极性无中心结构。相比之下，NaAlSiO4表现出异常大的复杂晶胞以及Al和Si位点完全无序的异常特征。这导致形成中心对称结构，这也是NaAlSiO4成分的一种新多晶型。我们还根据晶体的合成和热历史研究了水热KAlSiO4的多晶型性。研究还揭示了晶格中Na/K取代程度的结构敏感性。极性无中心结构的强烈倾向使得理解这些结构变得非常有趣。这些详细的结构解决了之前这一类看似简单的化合物中存在的结构模糊性问题。通过对NaxK1−xAlSiO4的霞石-钾长石系列结构微妙性的研究，揭示了合成方法、热历史和碱金属取代对所得结构的影响。
• Formation of Ceramics from Metakaolin-Based Geopolymers. Part II: K-Based Geopolymer
  作者：Jonathan L. Bell、Patrick E. Driemeyer、Waltraud M. Kriven

  DOI：10.1111/j.1551-2916.2008.02922.x

  日期：2009.3

  calcination conditions. Leucite crystallized as the major phase after being heated to >1000°C, although a minor amount of kalsilite was also formed. Prolonged heating for 24 h at 1000°C led to the formation of ∼80 wt% of leucite, along with 20 wt% of remnant glassy phase. The surface of geopolymers heated to 1000°C attained a smooth, glassy texture, although closed porosity persisted until 1100°C. Thermal

  采用多种技术研究了钾基地质聚合物(K2O·Al2O3·4SiO2·11H2O)在加热过程中的结构演变和结晶。在从 850-1100°C 加热时，由于粘性烧结，钾-地质聚合物经历了显着的收缩和表面积减小。未加热的地质聚合物中存在的 15-20 nm 大小的小沉淀物在加热 900°C 至 1000°C 的样品中显着变粗。然而，微观结构表面纹理取决于煅烧条件。白榴石在加热到 >1000°C 后结晶为主要相，但也形成了少量的钾长石。在 1000°C 下长时间加热 24 小时导致形成约 80 wt% 的白榴石，以及 20 wt% 的残余玻璃相。加热到 1000°C 的地质聚合物表面获得光滑的玻璃状质地，尽管闭合孔隙度一直持续到 1100°C。1100℃完成热收缩，材料达到四方白榴石理论密度的99.7%。
• Fabrication of Structural Leucite Glass-Ceramics from Potassium-Based Geopolymer Precursors
  作者：Ning Xie、Jonathan. L. Bell、Waltraud M. Kriven

  DOI：10.1111/j.1551-2916.2010.03794.x

  日期：——

  Leucite glass–ceramics were fabricated by cold isostatically pressing K2O·Al2O3·4SiO2·11H2O geopolymer powders into pellets followed by firing at 950°–1200°C, every 50°C in air. Leucite formation was observed in specimens heat treated to ≥1000°C. The relative density, Vickers hardness, fracture toughness, and biaxial flexural strength of sintered samples ranged approximately 96%–98%, 767–865 kg/mm2, 0.94–2.36 MPa·m1/2, and 90–140 MPa, respectively. The toughness and biaxial flexure strength increased with the firing temperature, while the density and hardness were relatively constant. Scanning electron microscopic and transmission electron microscopic analysis revealed that the sintered geopolymer formed leucite crystals and a compositionally variable glassy phase. Samples heated to 1200°C attained the highest biaxial flexure strength and toughness. This higher strength is believed to arise from an optimum in density, leucite content, and crystal size distribution.

  通过冷等静压成型K2O·Al2O3·4SiO2·11H2O地聚物粉末成颗粒，随后在空气中以950°–1200°C（每50°C为一个温度阶）的温度下烧结，成功制备了白榴石玻璃-陶瓷材料。实验发现，当样品的热处理温度达到≥1000°C时，开始形成白榴石晶体。烧结样品的相对密度、维氏硬度、断裂韧性和双轴弯曲强度分别约为96%–98%、767–865 kg/mm2、0.94–2.36 MPa·m1/2和90–140 MPa。随着烧结温度的升高，样品的韧性和双轴弯曲强度逐渐增加，而密度和硬度则保持相对稳定。扫描电子显微镜和透射电子显微镜分析表明，烧结后地聚物样品形成了白榴石晶体和化学成分可变的玻璃相。在1200°C下烧结的样品获得了最高的双轴弯曲强度和韧性。这一更高的强度被认为源于密度、白榴石含量以及晶体尺寸分布的综合优化。
• Sintering behaviour of pyrophyllite mineral: effect of some alkali and alkaline-earth metal carbonates
  作者：S. S. Amritphale、Navin Chandra、Rajendra Kumar

  DOI：10.1007/bf01166022

  日期：——

  Pyrophyllite mineral was heat treated with alkali and alkaline-earth metal carbonates in equimolar ratios at 1000 °C for 2 h and the various phases formed in the sintered products were investigated using X-ray powder diffraction and infrared spectroscopy. The morphology of the products was studied using scanning electron microscopy. In each case formation of aluminosilicate phase of respective cation

  叶蜡石矿物用等摩尔比的碱金属和碱土金属碳酸盐在 1000°C 下热处理 2 小时，并使用 X 射线粉末衍射和红外光谱研究在烧结产品中形成的各种相。使用扫描电子显微镜研究产物的形貌。在每种情况下都观察到各自阳离子的铝硅酸盐相的形成，但未检测到烧结产品中莫来石的存在。
• Kolditz, L.; Bentrup, U., Zeitschrift fur Anorganische und Allgemeine Chemie
  作者：Kolditz, L.、Bentrup, U.

  DOI：——

  日期：——