Cobalt dichloride

Furthermore, the EU regularly produces and regularly updates the list of substances of high concern, i.e. the SVHC list. The identification of a substance as a SVHC and its inclusion in the candidate list is the first step of the authorization procedure. The European Chemical Agency in Helsinki identifies from the candidate list priority substances to be included in Annex XIV of REACH (the authorisation list). The substances on the candidate list will most probably be liable to stricter regulation in the future (authorisation/banning) which will stimulate the substitution of these chemicals. Currently in June 2012, there are 84 substances included in the candidate list. Examples of chemicals on the candidate list which may be relevant for the leather industry are phenolphthalein, boric acid, cobalt dichloride, dichromate (although not used by leather industry), phthalates (DEHP, DBP and BBP), acrylamide and short-chain chlorinated paraffins. [Pg.251]

Introduction of trimethylsilyl substituents attached directly to the ot-carbon atom of a-(benzotriazol-l-yl)alkyl thioethers provide new opportunities. Thus, treatment of lithiated monosubstituted a-(benzotriazol-l-yl)alkyl thioethers with chlorotrimethylsilane produces a-(trimethylsilyl)alkyl thioethers 837. In reactions with hexamethyl-disilathiane and cobalt dichloride, thioethers 837 are converted to thioacylsilanes 838 that can be trapped in a Diels-Alder reaction with 2,3-dimethylbutadiene to form 2-alkyl-4,5-dimethyl-2-trimethylsilyl-3,6-dihydro-27/-thiopyrans 839 (Scheme 133) <2000JOC9206>. [Pg.94]

Both commercial anhydrous cobalt dichloride and anhydrous cobalt dichloride prepared by drying the hydrate under vacuum at 200° have been used successfully. [Pg.113]

A 2-L, four-necked, round-bottomed flask is equipped with a mechanical stirrer, a thermometer, and a gas vent with a nitrogen bubbler to maintain a slight positive nitrogen pressure. The nitrogen-filled flask is charged with 1 L of tetrahydrofuran, 76 mL of pyridine (0.94 mol), and 57.6 g of anhydrous cobalt dichloride (0.44 mol) which has been crushed to a powder. This... [Pg.113]

SYNS COBALT DICHLORIDE COBALT MURIATE COBALTOUS CHLORIDE COBALTOUS DICHLORIDE KOBALT CHLORID (GERMAN)... [Pg.377]

COBALTOUS CHLORIDE see CNB599 COBALTOUS DIACETATE see CNCOOO COBALTOUS DICHLORIDE see CNB599 COBALTOUS FLUORIDE see CNClOO COBALTOUS MOLYBDATE see CNC250 COBALTOUS NITRATE see CNC500 COBALTOUS OXIDE see CND125 COBALTOUS PERCHLORATE, HEXAHYDRATE see CND900... [Pg.1591]

The use of sympathetic inks reached a peak in the 18th century. These are solutions of dyestuffs which were said to exert secret effects the most famous is based on cobalt dichloride. They were for example used in the barometer flower which is described as follows by a contemporary writer ... [Pg.100]

Cobalt chloride 4251 CoCl Chloride of cobalt cobalt dichloride cobaltous chloride hydrochloride of cobalt muriate of cobalt. [Pg.7]

COBALT DICHLORIDE (7646-79-9 7791-13-1, hexahydrate) Cobalt compounds can react with oxidizers, acetylene. Contact with acids or acid fumes can produce highly toxic chloride fumes. Incompatible with metals can cause pitting attack and stress corrosion in austenitic stainless steels. [Pg.344]

C0CI2 COBALT DICHLORIDE 536 Cr03[g] CHROMIUM TRIOXIDE (GAS) 572... [Pg.1906]

CoCI2[g] COBALT DICHLORIDE (GAS) 537 Cr203 DICHROMIUM TRIOXIDE 573... [Pg.1906]

The colour of water is determined by a visual comparative method. It is compared with the colour of a solution of dipotassium hexachloroplati-nate(IV) and cobalt dichloride, or with a solution of potassium dichromate and cobaltous sulphate. Results are given in terms of mg of platinum per 1 1 of water. Colour (or its intensity) usually depends on the pH value of water, and therefore, it should be referred to this value. [Pg.296]

CI2C0, Cobalt dichloride, 28 322,29 110 CI2CU, Copper dichloride, 28 322, 29 110 Cl2Dy2Si4C44Hj4, Dysprosium, tetrakis(Ti -... [Pg.355]

C0CI2, Cobalt dichloride, 28 322,29 110 CoCljN4C4H,g, Cobaltail), dichlorobis(U-ethanediamine)-, trans-, chloride, 29 167... [Pg.358]

Synonyms Cobalt chloride (INCI) Cobalt (II) chloride Cobalt dichloride Cobalt muriate Cobaltous chloride... [Pg.986]

Cobalt dibromide. See Cobalt bromide (ous) Cobalt dichloride. See Cobalt chloride (ous) Cobalt dichromium tetraoxide. See Cobalt chromate (ous)... [Pg.987]

Cobaltous citrate. See Cobalt citrate (ous) Cobaltous diacetate. See Cobalt diacetate Cobaltous dichloride. See Cobalt chloride (ous) Cobaltous 2-ethyl hexanoate. See Cobalt octoate... [Pg.991]

When aqueous ammonia is added to a solution of cobalt dichloride, C0CI2, a blue precipitate forms of the corresponding hydroxide, Co(OH)2, which dissolves on the addition of an excess of ammonia to give a solution that immediately begins to absorb oxygen and turn brown. From the oxidized solution, the following compounds can be isolated ... [Pg.106]

Synonyms cobalt dichloride hexahydrate Cobalt Blue cobaltous chloride hexahydrate... [Pg.1205]

The same reaction (Eq. 2.71) carried out with chromium trichloride or cobalt dichloride with two equivalents of the lithium reagent yields the heterobimetallic species [(thf)2Li(/Li-OCBu3)Cr(OCBu3)]22° or [(thf)3Li(/r-Cl)Co(OCBu3)2], respectively. The reaction represented by Eq. (2.71) has also been used in the preparation of alkoxide derivatives of vanadium(m), chromium(vi), and molybdenum(m) (Eqs 2.72-2.74) ... [Pg.30]

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See also in sourсe #XX -- [ Pg.13 , Pg.232 ]

See also in sourсe #XX -- [ Pg.229 ]

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See also in sourсe #XX -- [ Pg.170 , Pg.725 ]

See also in sourсe #XX -- [ Pg.28 , Pg.322 ]

See also in sourсe #XX -- [ Pg.30 ]

See also in sourсe #XX -- [ Pg.28 , Pg.322 ]

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