Pink salt

Ammonium-ferrisulfat, n. ammonium iron(III). sulfate, ferric ammonium sulfate, -ferro-sulfat, n. ammonium iron(II) sulfate, ferrous ammonium sulfate, -jodat, n. ammonium iodate. -jodid, n. ammonium iodide, -platinchlorid, n. ammonium platinichloride (chloroplatinate). -rest, m. ammonium radical. rhodanid, -rhodantir, n. ammonium thiocyanate, -salpeter, m. ammonium nitrate, -salz, n. ammonium s t. -selfe,/. ammonia soap, -sulfhydrat, n. ammonium hydrosulfide, -sulfocyanid, n. ammonium thiocyanate, -verbindung,/. ammonium compound, -zinn-chlorid, n. ammonium chlorostannate, pink salt. 

Pinit, n. pinitol, (less correctly) pinite. pinkeln, v.i. piddle, putter, pinken, v.t. treat with pink salt hammer, forge. 

Pinksalz, n, pink salt (ammonium chlorostan-nate, (NHilaSnCU less commonly, potassium sodium tartrate), -bad, n, pink-salt bath. Pinne,/, (Tech.) pin, peg, tack (of a hammer) peen quill feather. 

Zinn-bromwasserstoffsaure, /. bromostannic acid, -butter, /. (Old Chem.) butter of tin (stannic chloride), -charge, /. (Textiles) tin weighting, -chlorammonium, n. ammonium chlorostannate, (Dyeing) pink salt, -chlorid, n. tin chloride, specif, stannic chloride, tin (IV) chloride, -chloriir, n. stannous chloride, tin(II) chloride. 

The compounds of the rare earth elements are usually highly colored. Neodymium s compounds are mainly lavender and violet, samarium s yellow and brown, holmium s yellow and orange, and erbium s rose-pink. Europium makes pink salts which evaporate easily. Dysprosium makes greenish yellow compounds, and ytterbium, yellow-gold. Compounds of lutetium are colorless, and compounds of terbium are colorless, dark brown, or black. 

The anhydrous salt of cobalt(II) suhate is a red orthogonal crystal density 3.71g/cm3 melts above 700°C the monohydrate is red orthogonal crystal having a density of 3.08 g/cm the heptahydrate is a pink salt, monoclinic prismatic crystals, density 2.03 g/cm heptahydrate dehydrates to hexahydrate at 41°C and converts to monohydrate at 74°C the anhydrous salt and heptahy-drates are soluble in water monohydrate slowly dissolves in boiling water. 

These pink salts are obtained simply by bubbling nitric oxide, NO (generated freon sodium nitrite and dilute sub farie add) into ammoniacal solutions of eobsltous salts in the presence of air. 

Cobaltous acetate. CAS 71-48-7], Co(CHiCO )>. is obtained as a pink salt by the dehydration of the tetrahydrate which is prepared by dissolving the hydroxide or carbonate in acetic acid. The tetrahydrate. which is the commercial form, is widely used in the preparation of catalysts, c.g.. OXO synthesis, and dryers for inks and vamlshes. 

A solution of 20.8 g. (55 mmoles) of potassium tetrachloro-platinate(II) in 100 ml. of water is prepared in a 250-ml. suction flask with a nitrogen flow through the sidearm to provide an inert atmosphere. (The procedures work equally well at halfscale.) Triethylphosphine (15 ml., 100 mmoles) is added all at once and the mixture is stirred with a magnetic stirrer at room temperature for one hour. A pink-tan precipitate of tetrakis-(triethylphosphine)platinum(II)tetrachloroplatinate(II) forms. The mixture is heated on a steam bath for one hour. The pink salt dissolves, and a layer of pale yellow dichloro-bis(triethyl-phosphine)platinum forms on the liquid. The solid is filtered, washed with water, crushed in a mortar, and dried under... 

T7.2 The most important part of this problem is deciding on the composition of inner-sphere and outer-sphere complexes of the two compounds mentioned (see Section The language of coordination chemistry). For example, the fact that three equivalents of AgCl can be quickly obtained from a solution of the pink salt indicates that three Cr anions are a part of the outer-sphere complex. The rest, combined together, should form the inner-sphere complex [Co(NH3)5(OH2)], and the salt should be [Co(NH3)j(OH2)]CI. It can be demonstrated similarly that the purple solid is [CoCl(NHj)j]Cl. These guidelines are useful for Tutorial Problems 7.3 and 7.5 as well. 

Except for the possible existence of Rela, the only simple dihalides of this group that are known (so far) are those of manganese. They are paie-pink salts obtained by simply dissolving the metal or carbonate in aqueous HX. MnFi is insoluble in water and forms no hydrate, but the others form a variety of very water-soluble hydrates of which the tetrahydrates are the most common. 

The change of white tin into grey takes place also with increased velocity in presence of a solution of tin ammonium chloride (pink salt), which is able to dissolve small quantities of tin. In presence of such a solution, also it was found that the temperature at which the velocity of transformation was greatest was raised to 0. At this temperature,... 

Phenolphthalein is a colorless compound which yields pink salts with alkalies, and is a valuable indicator in acidimetry. It is very sensitive to hydrogen ions and is, accordingly, suited to the titration of the weak organic acids. 

The anhydrous cobalt(II) chloride required for this preparation is conveniently prepared by heating reagent-grade cobalt (II) chloride 6-hydrate at 160° or above at a pressure of 5 mm. or less until the pink salt has turned blue. The water may be collected in a trap cooled in a —78° bath in order to protect the pump. To prevent clogging of the system, it may be necessary to remove the water from time to time. 

The ammonium salt (NH4)aSnCle, is known in industry as pink salt. It is used as a mordant in dyeing. 

Magnus Pink Salt (with the same stoichiometry) has also been reported, but is poorly characterized. 

Penta salt Perlate salt Picric acid Pink salt Plaster of Paris Plimmer s salt Polyhalite Potash... 

Figure 5 Static NMR spectra and their respective simuiations (A) K2PtCi4, (B) Pt(NH3)4Cl2-H20, (C) Magnus green salt, and (D) Magnus pink salt. fio=21-1 T. Reprinted with permission from Ref. [41], Copyright 2014 American Chemicai Society.

A pink salt may be prepared by prolonged exposure of a saturated solution of Nd selenate or of a higher hydrate over concentrated H2SO4 or by crystallization from fairly concentrated acid solutions. The product, formed on precipitation with alcohol from a (at 14°C) saturated solution, contains more than 8H2O and is closer to anenneahydrate. Friend [1], Friend, Round [2]. 

In 1839, Mosander who was working with cerium nitrate found it was possible to separate a soluble salt from this material, which he termed lanthana. Three years later, he separated this lanthana into didymia and the pure lanthana. Didymia was found later to be an impme element and was to be a mixture of two oxides which were inseparable using his procedures. In 1842, Mosander continued working on the pmification process and separated ytteria ore into three oxides pure ytteria, terbia and erbia. The oxide that provided pink salts was named terbium, and the other that gave a yellow peroxide he called eibium. Delafontaine and Berlin also had identical results, but alternatively named them eibium and terbium, respectively, as today. At this time there were six known rare earth elements yttrium, cerium, lanthanum, didymium, eibium and teibium. 

NH4)2SnCl is the pink salt mordant of the dyeing industry. 

---