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[4] If excess acids are removed, PtCl 4 crystallizes from aqueous solutions in large red crystals of pentahydrate PtCl 4 ·5(H 2 O), [5] which can be dehydrated by heating to about 300 °C in a current of dry chlorine. The pentahydrate is stable and is used as the commercial form of PtCl 4. Treatment of PtCl 4 with aqueous base gives the [Pt(OH ...
[4] Historically, an important reaction involves ammonia and [PtCl 4] 2−. This reaction affords a deep green precipitate with empirical formula PtCl 2 (NH 3) 2. This material, known as Magnus' green salt, is a semiconducting coordination polymer consisting of chains of alternating [PtCl 4] 2− and [Pt(NH 3) 4] 2+ centres. [5]
Chloroplatinic acid (also known as hexachloroplatinic acid) is an inorganic compound with the formula [H 3 O] 2 [PtCl 6](H 2 O) x (0 ≤ x ≤ 6). A red solid, it is an important commercial source of platinum, usually as an aqueous solution. Although often written in shorthand as H 2 PtCl 6, it is the hydronium (H 3 O +) salt of the ...
Magnus's green salt is the inorganic compound with the formula [Pt(NH 3) 4][PtCl 4]. This salt is named after Heinrich Gustav Magnus, who, in the early 1830s, first reported the compound. The compound is a linear chain compound, consisting of a chain of platinum atoms. It is dark green, which is unusual for platinum compounds.
PtCl 4 → PtCl 2 + Cl 2. Transformations such as this are "driven" by entropy, the free energy gained upon the release of a gaseous product from a solid. Upon heating to still higher temperatures, PtCl 2 releases more chlorine to give metallic Pt. This conversion is the basis of the gravimetric assay of the purity of the PtCl 2 product.
Potassium tetraiodoplatinate is the inorganic compound with the formula K 2 PtI 4 ·(H 2 O) 2. It is the potassium salt of tetraiodoplatinate, a square planar complex of platinum(II). The compound crystallizes from water as the dihydrate, [1] whereas the related chloride and bromide K 2 PtCl 4 and K 2 PtBr 4 are obtained only as the anhydrous ...
The Karnataka Scheduled Castes and Scheduled Tribes (Prohibition of Transfer of Certain Lands) Act, 1978 [1] (Karnataka Act 2 of 1979) or PTCL is a statute of Karnataka. This law which was introduced in 1978 is retrospective in nature and is considered an ex post facto law .
PTCL-NOS, the most common subtype of PTCL, is aggressive and predominantly nodal. There are two morphologic variants: the T-zone lymphoma variant and the lymphoepithelioid cell variant. [4] [5] T-zone lymphoma is so named for its involvement in a specific area of the lymph node that consists of a dense accumulation of T-cells. [6]