Nickel dihydrate

C10H22N20sPd, cis-Bis(L-valinato)palladium(II) monohydrate, 39B, 719 C10H22NnNi04, Bis(L-prolinamidato)nickel dihydrate, 38B, 891 Cl0H23CUN7O8, (Glycylglycinato)(aguo)(9-methyladenine)copper(II) tetrahydrate, 42B, 905... 

Nickel formate dihydrate [15694-70-9] Ni(HCOO)2 is a green monoclinic crystalline compound which melts with decomposition to nickel... 

Nickel Oxalate. This salt, NiC204, mol wt 146.7, is produced as a greenish white crystalline dihydrate [6018-94-6]. It decomposes by heating at 320°C under vacuum into Ni metal and carbon dioxide. Nickel oxalate is used for the production of nickel catalysts and magnetic materials. 

The CASS Test. In the copper-accelerated acetic acid salt spray (CASS) test (42), the positioning of the test surface is restricted to 15 2°, and the salt fog corrosivity is increased by increasing temperature and acidity, pH about 3.2, along with the addition of cupric chloride dihydrate. The CASS test is used extensively by the U.S. automobile industry for decorative nickel—chromium deposits, but is not common for other deposits or industries. Exposure cycle requirements are usually 22 hours, rarely more than 44 hours. Another corrosion test, now decreasing in use, for decorative nickel—chromium finishes is the Corrodkote test (43). This test utilizes a specific corrosive paste combined with a warm humidity cabinet test. Test cycles are usually 20 hours. 

Answer (a) Nickel(II) chloride dihydrate (b) aluminum fluoride ... 

C10H21N4NiO13P-2 H20 Penta-aquo-nickel(H)-inosine 5 -phosphate, dihydrate ANIMPH, 01 32 381... 

Nickel formate dihydrate, 77 117 Nickel halides, 77 109-110 Nickel-hydride battery modules, 7 7 95... 

Another Hydrogenation with Platinum Oxide. JACS, 55, 2694. This method is used to reduce those hydrox-mandelonitriles in the amphetamine section. It uses low pressure and can be used on about any reducible compound. It can also use palladium oxide as the catalyst. A solution of 35.8 g of phenyl-2-propanol in 250 ml of 80% ethanol containing 7.3 g of HCl is hydrogenated for 3 hours in a Parr hydrogenation bottle at 3,5kg/cm or 50 p.s.i, over 0,5 g of platinum oxide (or palladium oxide Raney nickel may also work) or an equimolar ratio of analog catalyst for about 3 hours. Filter off the catalyst and rinse with a little water to wash all the product from the catalyst. Dilute the filtrate to 1 liter of volume with water and extract twice with ether to remove any acid insoluble material. The ether extracts do not contain product. The aqueous layer is made alkaline with solid NaHCOs to a pH of 8-9 and the basic oil which separates is extracted with two 300 ml portions of ether. This ether solution is dried over MgS04, and filtered, then evaporated to remove the ether. To convert to the oxalate, add ether to the crude product and add to a solution of 9.6 g of oxalic acid dihydrate in a small volume of methanol. Give ample... 

Complexes of nickel(ii) with ethylenedithiodiacetate, diethylenetri-thioacetate, and ethylidenetetrathiotetra-acetate have been reported. The structure of ethylenedithiodiacetatonickel(ii) dihydrate has been reported. The potentially terdentate ligand, thiodiethanol, forms both 1 1 and 1 2 complexes with nickel. 

The reduction of different aliphatic or aromatic aldehydes or ketones 15 was easily achieved using the combination of dihydrated nickel(II) chloride, lithium and a catalytic amount of naphthalene (16%) or DTBB (8%) in THF, yielding the corresponding alcohols without (534) or with (535) deuterium labelling in 57-86% yield. For imines 536, the same process afforded the corresponding amines 537 or deuterio amines 538 in 54- >95% yield . 

Manganese(ll), [triaconta-/r-cyano octa-lds(trimethanolmanganese(ll)) hexa-lds(hexacyanomolybdate(V)) -], dihydrate, pentamethanolate, 34 158 N4gMo6Ni9024C72H96 xMeOH, Nickel(ll), [triaconta-/r-cyano octakis(trimethanol-nickel(Il)) hexakis(hexacyanomolyb-date(V)) -], methanolate, 34 159 N4gNi9024W6C72H96 xMeOH, Nickel(ll), [tria-conta-/r-cyano octakis(trimethanolnickel-(II)) hexakis(hexacyanotungstate(V)) -], methanolate, 34 159... 

Most of the nickel complexes prepared according to reactions (113)—(119) have the general formula [NiL]X2 or [NiL2]X2 (X = C104, ZnCU) and are square planar. The complexes obtained from reaction (118) as dihydrate, NiL(H20)2(C104)2, are six-coordinate cis octahedral. 

Nickel Oxalate. This salt is pioduced as a greenish white ciystalline dihydrate. Nickel oxalate is used for the production of nickel catalysts and magnetic materials. 

Although square-planar configuration is customarily considered classical for v/c-dioximate of nickel(II), attempts have been made repeatedly over the years for preparing the above complexes in other configurations also. By employing weakly polar solvents and some other variations, success has been claimed in the preparation of mono(dioxime) complexes of nickel(II).42,43 The dichloro-bis(l,2-cyclohexanedione dioximato)nickel(II) has been shown to have an octahedral vie structure.44 Examples of tris(dioxime) complexes of transition metals in general45"18 and of bivalent atoms40,47 in particular are rare and structural details of only a tris(dioxime) complex of cobalt(III) are known.48 In a more recent publication,49 the crystal structure of tris(l,2-cyclohexanedione dioximo)nickel(II) sulfate dihydrate has been elucidated. 

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