COBALT CHROMATE

Base Information

• Chemical Name: COBALT CHROMATE
• CAS No.: 12016-69-2
• Molecular Formula: CoCr2O4
• Molecular Weight: 226.983
• Mol file: 12016-69-2.mol

Synonyms:COBALT CHROMATE;COBALT CHROMIUM OXIDE;COBALT DICHROMIUM TETRAOXIDE;Cobaltchromate,99.5%(metalsbasis);

Chemical Property of COBALT CHROMATE

Chemical Property:

• PSA: 80.26000
• Density: 5.140
• LogP: -0.47520
• Solubility.: Almost insoluble in conc. HCl and HNO₃
• Water Solubility.: almost insoluble conc HCl, HNO3 [MER06]

Purity/Quality:

98%,99%, ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: Green pigment for ceramics.

Technology Process of COBALT CHROMATE

There total 35 articles about COBALT CHROMATE which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

cobalt(II) nitrate hexahydrate + chromium(III) nitrate nonahydrate → cobalt(II) chromite (12016-69-2)

Guidance literature:

With NH₃; In neat (no solvent, solid phase); aq. soln. of Cr-salt added slowly to aq. soln. of Co-salt with stirring,stirred at room temp. for 2 h, aq. NH3 added dropwise to pH 8.9, filter ed, washed with H2O, pH 7, washed with acetone, dried at 120°C for 16 h, calcined at 600°C 4 h;

DOI:10.1016/j.jmmm.2011.01.040

Reference yield:

cobalt(II) oxide (1307-96-6) + chromium(III) oxide → cobalt(II) chromite (12016-69-2)

Guidance literature:

In melt; CoO (1mol) and Cr2O3 (1mol) heated in the fluxing agent KCl to 1000-1500°C;; excessive CoO extracted from the powdered compound with concd. HCl or HNO3;;

Reference yield:

chromium(III) nitrate nonahydrate + cobalt(II) chloride hexahydrate → cobalt(II) chromite (12016-69-2)

Guidance literature:

With NaOH; In water; CoCl2*6H2O and Cr(NO3)3*9H2O dissolved in H2O; mixed under stirring at room temp.; NaOH added; mixt. kept under stirring at 353 K for 6 h; ppt. filtered; washed (H2O); annealed in air oven at 573 K for 2 h, at 773 K for 3 h;

DOI:10.1016/j.jmmm.2004.03.040

upstream raw materials:

cobalt(II) oxide

sodium hydroxide

Downstream raw materials:

chromate(VI) ion

Refernces

• 1、 Choudhary, Pankaj,Varshney, Dinesh. "Structural, vibrational and dielectric behavior of Co1-xMxCr2O4 (M?=?Zn, Mg, Cu and x?=?0.0, 0.5) spinel chromites". . p. 415 - 424. Retrieved 2017.
• 2、 Rath, Chandana,Mohanty,Banerjee. "Magnetic properties of nanoparticles of cobalt chromite". . p. 1698 - 1702. Retrieved 2011.
• 3、 Yang, Lu,Bukhovko, Maxim P.,Malek, Andrzej,Li, Liwei,Jones, Christopher W.,Agrawal, Pradeep K.,Davis, Robert J.. "Influence of Co on Ethylene Steam Reforming Over Co–Cr–O Spinel Catalysts". . p. 1456 - 1466. Retrieved 2021.
• 4、 Kim, Ingyu,Oh, Yoon Seok,Liu, Yong,Chun, Sae Hwan,Lee, Jun-Sik,Ko, Kyung-Tae,Park, Jae-Hoon,Chung, Jae-Ho,Kim, Kee Hoon. "Electric polarization enhancement in multiferroic CoCr2 O4 crystals with Cr-site mixing". . . Retrieved 2009.
• 5、 Duan, Yan,Lee, Jun Yan,Xi, Shibo,Sun, Yuanmiao,Ge, Jingjie,Ong, Samuel Jun Hoong,Chen, Yubo,Dou, Shuo,Meng, Fanxu,Diao, Caozheng,Fisher, Adrian C.,Wang, Xin,Scherer, Günther G.,Grimaud, Alexis,Xu, Zhichuan J.. "Anodic Oxidation Enabled Cation Leaching for Promoting Surface Reconstruction in Water Oxidation". . p. 7418 - 7425. Retrieved 2021.
• 6、 Pechenyuk,Zolotarev,Gosteva,Domonov,Shimkin. "Crystal structures and thermal behaviour of double complex compounds incorporating the [Cr{CO(NH2)2}6]3+ cation". . p. 388 - 396. Retrieved 2017.
• 7、 Kumar, Nitesh,Sundaresan. "On the observation of negative magnetization under zero-field-cooled process". . p. 1162 - 1164. Retrieved 2010.
• 8、 Tomiyasu, Keisuke,Horigane, Kazumasa,Yokobori, Toshio,Kousaka, Yusuke,Takahashi, Miwako,Hiraka, Haruhiro,Akimitsu, Jun,Yamada, Kazuyoshi. "Unquenched geometric frustration effect on spiral spin correlation in magnetically ordered phase". . . Retrieved 2009.
• 9、 Li, Shandong,Bi, Hong,Tian, Zongjun,Xu, Feng,Gu, Benxi,Lu, Mu,Du, Youwei. "Surface spin pinning effect of polymer decomposition residues in CoCr 2O4 nanocrystallites system". . p. 11 - 16. Retrieved 2004.
• 10、 Pirogova,Panich,Korosteleva,Voronin,Popova. "Catalytic properties of chromites with a spinel structure in the oxidation of CO and hydrocarbons and reduction of nitrogen oxides". . p. 2377 - 2380. Retrieved 2001.