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Cupric chromate

The mechanism and rate of hydrogen peroxide decomposition depend on many factors, including temperature, pH, presence or absence of a catalyst (7—10), such as metal ions, oxides, and hydroxides etc. Some common metal ions that actively support homogeneous catalysis of the decomposition include ferrous, ferric, cuprous, cupric, chromate, dichromate, molybdate, tungstate, and vanadate. For combinations, such as iron and... [Pg.471]

Synonyms neutral cupric chromate copper chromate neutral... [Pg.264]

Grayish-black tetragonal crystals density 5.4 g/cm. When heated to elevated temperatures (above 900°C) copper(ll) chromite decomposes to cupric chromate(ll), CuCr02 and chromium (Vt) oxide, CrOs. Copper(ll) chromite is insoluble in water and dilute acids. [Pg.265]

Copper Chromates.—Both cuprous and cupric chromates are known. The latter forms an ammoniacal salt, 2CuCrO4.CuO.10NH3, which is obtained on precipitating a green solution of basic cojjper chromate in ammonia by means of alcohol, as dark green needles which are unstable in air. The salt, CuCrO. lNHj, also exists. ... [Pg.51]

Basic cupric chromates. Several cupric chromate-cupric hydroxide compounds are known. CuCr04.Cu(0H)2 forms yellow, copper-red or chocolate-brown to lilac crystals CuCr04.2Cu(0H)3, a light brown powder 2CuCr04.3Cu-(OH)2, yellow to yellowish-brown crystals. Prepn Campbell, Lemaire, foe. cit. Winter el af., foe. ciz All are practically insol in water. [Pg.412]

J. F. Persoz obtained cuprous chromite, CuCr02, by calcining cupric chromate in a crucible exposed to the reducing action of the furnace gases, and extracting the product with hydrochloric acid and L. and P. Wohler obtained it by heating one of the basic cupric chromites with an excess of cupric oxide above 900°, and... [Pg.76]

Acid cupric chromate Ammonial copper arsenate Chromated copper arsenate Chromated zinc arsenate Copperized chromated zinc chloride... [Pg.200]

Lamb, A. Tollefson, E.L. (1976) Toxic effects of cupric chromate and chromic ions on biological oxidation. [Pg.289]

A reddish brown cupric chromate(VI) compound with composition CuCr04 is known to exist however, use as a pigment is... [Pg.124]

See other pages where Cupric chromate is mentioned: [Pg.90]    [Pg.95]    [Pg.264]    [Pg.63]    [Pg.62]    [Pg.332]    [Pg.351]    [Pg.82]    [Pg.412]    [Pg.77]    [Pg.77]    [Pg.139]    [Pg.139]    [Pg.140]    [Pg.131]    [Pg.276]    [Pg.125]    [Pg.75]    [Pg.75]    [Pg.90]    [Pg.95]   
See also in sourсe #XX -- [ Pg.9 , Pg.264 ]

See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.4 , Pg.5 , Pg.6 , Pg.7 , Pg.8 , Pg.9 , Pg.10 , Pg.11 , Pg.12 ]

See also in sourсe #XX -- [ Pg.51 ]



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