Study on the characterization of a unique smectite disconvered in soil of Java Island

爪哇岛土壤中发现的独特蒙皂石的表征研究

• 批准号: 10660064
• 负责人: TOKASHIKI Yoshihiro
• 金额: $ 1.86万
• 依托单位: University of the Ryukyus
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10660064/
• 关键词: Smectite; Mixed layer mineral; Paleudult; Halloysite; Beidellite; 赤黄色土; 粘土鉱物; ジャワ島

In a Paleudult of Java Island, there was a clay mineral indicating a mixed layer Mineral which gave 15.51Å peak (in the range of 14.61Å and 16.37Å) on Mg^<2+> -air dry and a 20.55Å peak on Mg^<2+> -glycerol solvation. On K^+-saturation, the mineral showed an 11.87Å peak and this peak was continuous to 7.53Å.Futhermore, on sequential heating, the peak gradually shifted and finally shifted completely to 10.05Å at 550℃ in X-rav diffraction (XRD). A peak of 7.53Å was also observed in both Mg^<2+>- and K^+-saturated clays which disappeared after heating at 550℃. The objective of this study was to investigate the characteristics of this mineral.The 060 peak was 1.50Å and suggests the dioctahedral smectite. The Greene -Kelly test on the clay sample suggests beidellite. Formamide solvation that caused a swelling of the 7.53Å peak to 10.05Å suggests the presence of halloysite. The 5M NaOH treatment resulted in a collapse of the 7.53Å peak and remained at a sharp neak of 15.51Å (in Ms^<2+>-saturated clay). The presence of hallovsite was also supported by a SiO_2/Al_2O_3 molar ratio of NaOH extractable materials. The NaOH treatment also resulted in an increase of the 11.87Å peak (in K^+-saturated clay) to 13.49Å.According to the mineralogical and chemical properties of the clay sample we consider that the mineral is hallovsite/beidellite mixed laver mineral.

在爪哇岛的Paleudult，有一种粘土矿物，表明是一种混合层矿物，它在Mg^<2+> -空气干燥时产生15.51 μ m峰（在14.61 μ m和16.37 μ m范围内），在Mg^<2+> -甘油溶剂化时产生20.55 μ m峰。在K^+饱和时，矿物的X射线衍射峰为11.87 nm，该峰一直延续到7.53 nm，在连续加热时，该峰逐渐移动，在550℃时完全移动到10.05 nm。在Mg^<2+>和K^+饱和的粘土中也观察到7.53 μ m的峰，该峰在550℃加热后消失。本研究的目的是探讨这种矿物的特征，060峰为1.50 nm，表明是双八面体蒙皂石。粘土样本的格林-凯利测试表明是贝得石。甲酰胺溶剂化导致7.53 μ m峰膨胀至10.05 μ m，表明存在埃洛石。5 M NaOH处理导致7.53 μ m峰的塌陷，并保持在15.51 μ m的尖锐峰（在Ms^<2+>饱和粘土中）。NaOH可萃取物的SiO_2/Al_2O_3摩尔比也支持了多水铝石的存在。经NaOH处理后，K^+饱和粘土中的11.87 ~ 13.49 ~ 13.4

项目成果

Mohammad Nurcholis: "Characterization of Kaolin/Smectite Mixed Layer Mineral in Paleudult of Java Island"Clay Science. 10(4). 291-302 (1998)

Mohammad Nurcholis：“爪哇岛 Paleudult 中高岭土/蒙脱石混合层矿物的表征”粘土科学。

Mohammad Nurcholis: "Characterization of Kaolin/Smectite Mixed Layer Mineral in Paleudult of Java Island."Clay Science.. 10(4). 291-302 (1998)

Mohammad Nurcholis：“爪哇岛 Paleudult 中高岭土/蒙脱石混合层矿物的表征。”粘土科学.. 10(4)。

Mohammad Nurcholis: "Relationship between Clay Mineralogy and Exchangeable Al in Red and Yellow Soils from the Island of Okinawa and Java"Aust.J.Soil Res.. 36. 411-421 (1998)

Mohammad Nurcholis：“冲绳岛和爪哇红土和黄土中粘土矿物学与可交换铝的关系”Aust.J.Soil Res.. 36. 411-421 (1998)

Mohammad Nwrcholis: "Relationship between clay Mineralogy and exchange able Al in red and yellow soils from the Islands of Okinawa and Java"Aust.J.Soil Res.. 36. 411-421 (1998)

Mohammad Nwrcholis：“冲绳岛和爪哇岛红土和黄土中粘土矿物学与可交换铝的关系”Aust.J.Soil Res.. 36. 411-421 (1998)

Mohammad Nurcholis: "Relationship between Clay Mineralogy and Exchangeable Al in Red and Yellow Soils from the Island of Okinawa and Java."Aust.J.Soil Res.. 36. 411-421 (1998)

Mohammad Nurcholis：“冲绳岛和爪哇红土和黄土中粘土矿物学与可交换铝的关系。”Aust.J.Soil Res.. 36. 411-421 (1998)