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含钛矿物主要有钛铁矿(FeTiO_3)、金红石(TiO_2)、钛磁铁矿[(Fe、Ti)O_4]和钛的硅酸盐等,通常用氢氧化钠、过氧化钠或焦硫酸钾熔融分解。用碱熔融分解钛矿物效果较好,但对坩埚腐蚀较大,引入的杂质也较多;用焦硫酸钾熔融只能分解前两种矿物,对含硅离的样品也不适用。以上几种主要含钛矿物均能溶于氢氟酸,一些含硅高的样品也适宜用氢氟酸溶解。本法就氢氟酸分解钛矿物的条件进行了一些试验,证明氢氟酸与硫酸、盐酸合用分解钛矿物适用范围广,操作简便。一试剂与仪器双球式还原漏斗:本所制作(见附图)
Titaniferous minerals are mainly ilmenite (FeTiO_3), rutile (TiO_2), titanomagnetite [(Fe, Ti) O_4] and titanium silicate, etc., usually with sodium hydroxide, sodium peroxide or potassium pyrosulfate Melt decomposition. Melting and decomposing titanium mineral with alkali is better, but corrosion to the crucible is larger and more impurities are introduced. Melting with potassium pyrosulfate can only decompose the first two minerals, and is not suitable for silicon-containing samples. Several major titanium-containing minerals above are soluble in hydrofluoric acid, and some high-silicon samples are also suitably hydrofluoric acid-soluble. This law on the conditions of hydrofluoric acid decomposition of titanium minerals carried out a number of tests to prove that hydrofluoric acid and sulfuric acid, hydrochloric acid decomposition of titanium with a wide range of applications, easy to operate. A reagent and instrument double ball reduction funnel: The production (see photo)