A novel manganese phosphite-oxalate, [C2N2H10][Mn-2(II)(OH2)(2)(HPO3)(2)(C2O4)] has been hydothermally synthesized and its structure determined by single-crystal X-ray diffraction. The structure consists of neutral manganese phosphite layers, [Mn(HPO3)](infinity), formed by MnO6 octahedra and HPO3 units, cross-linked by the oxalate moieties. The organic cations occupy the middle of the 8-membered one dimensional channels. Magnetic studies indicate weak antiferromagnetic interactions between the Mn2+ ions. (C) 2009 Elsevier Inc. All rights reserved

Ramaswamy, Padmini

Mandal, Sukhendu

Natarajan, Srinivasan

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Synthesis, structure and magnetic behavior of a new three-dimensional Manganese phosphite-oxalate: [C2N2H10][Mn-2(II)(OH2)(2)(HPO3)(2)(C2O4)]

Sapuni  su  kemijski  spojevi,  produkti  neutralizacije  masnih  kiselina  alkalijama.  Upotreba  sapuna  kao  sredstva  za  pranje,  emulgiranje  i  geliranje  je  posljedica  detergentnih  svojstava  sapuna  (površinska  napetost, pjenjenje, ubrzanje kvašenja površine i emulgiranja) te nastanka gel-struktura. Detergenti, čiji je  dobar predstavnik sapun, su  skupina površinski aktivnih tvari, koje zbog toga  mogu obavljati funkciju  čišćenja.  U  današnje  vrijeme,  u  različitim  smještajnim  turističkim  objektima  postoje  veće  količine  upotrijebljenih, a neiskorištenih sapuna. Kao i za ostali otpad, nastoji se pronaći održivi način oporabe.  Proizvodnja sapuna regulirana je i strogo kontrolirana zakonima i pravilnicima te je vrlo teško uspostaviti  ekonomičan  postupak  njegovog  recikliranja.  Zadatak  ovog  završnog  rada  bio  je  recikliranje  otpadnog  sapuna iz  hotela uz dodatak  vode, bojila i mirisa, u  svrhu dobivanja proizvoda prihvatljivih svojstava.  Kombinacijom tri otpadna sapuna dobiven je reciklirani sapun koji se može upotrijebiti.Soaps  are  chemical  compounds,  fatty  acid  neutralization  products.  The  use  of  soap  as  a  washing,  emulsifying and gelling agent is a consequence of detergent properties of soap (surface tension, foaming,  surface dampening and emulsification) and the formation of a gel structure. Detergents, which a typical  represent at ives are soaps, are a group of surfactants, which can be used for cleaning purposes. Today,  there  are  large  quantities  of  used  and  unused  soaps  in  different  tourist  accommodation  facilities.  Like  other  waste, it tries to  find a viable  way of recovery. The production of soap is regulated and strictly  controlled by laws and regulations, and it is very difficult to establish an economical procedure for its  recycling. The task of this final work was to recycle waste soaps from the hotel with the addition of water,  dyes and odors, in order to obtain products of acceptable properties. Combining of three waste soaps, a  recycled soap, which can be used, is obtained

Synthesis, structure and magnetic behavior of a new three-dimensional Manganese phosphite-oxalate: [C2N2H10][Mn-2(II)(OH2)(2)(HPO3)(2)(C2O4)]

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