Cobalt oleate
Names
IUPAC name
Cobalt (Z )-octadec-9-enoate
Other names
Cobaltous oleate
Identifiers
ChemSpider
ECHA InfoCard 100.038.953
EC Number
UNII
CCCCCCCC/C=C\CCCCCCCC(=O)[O-].CCCCCCCC/C=C\CCCCCCCC(=O)[O-].[Co+2]
Properties
C 36 H 66 Co O 4
Molar mass
−1
Appearance
Purple powder
Solubility
Soluble in benzene , carbon tetrachloride , pyridine , chloroform , quinoline [ 1]
Hazards
GHS labelling
Warning
H317 , H411 , H412
P261 , P272 , P273 , P280 , P302+P352 , P321 , P333+P313 , P362+P364 , P391 , P501
Related compounds
Sodium oleate
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
Cobalt oleate is an organometallic compound with the formula Co (C 18 H 33 O 2 )2 . When cobalt oleate is added to non-polar solvents , the viscosity rapidly increases, and then continues increasing over time. This unusual viscosity effect is caused by the formation of a weak coordination complex with the solvent molecules.[ 1]
Preparation
Cobalt oleate can be synthesized by heating a solution of sodium oleate and cobalt(II) chloride to 70 °C.[ 2]
2
NaC
18
H
33
O
2
+
CoCl
2
⟶ ⟶ -->
2
NaCl
+
Co
(
C
18
H
33
O
2
)
2
{\displaystyle {\ce {2NaC18H33O2 + CoCl2 -> 2NaCl + Co(C18H33O2)2}}}
See also
References
^ a b Funakoshi, Hideo; Matuura, Ryohei (October 1964). "Peptizing Action of Some Polar Substances on the Benzene Solution of Cobalt Oleate" . Nature . 204 (4954): 186. Bibcode :1964Natur.204..186F . doi :10.1038/204186a0 ISSN 0028-0836 . S2CID 4198459 . ^ An, Kwangjin; Lee, Nohyun; Park, Jongnam; Kim, Sung Chul; Hwang, Yosun; Park, Je-Geun; Kim, Jae-Young; Park, Jae-Hoon; Han, Myung Joon; Yu, Jaejun; Hyeon, Taeghwan (2006-08-01). "Synthesis, Characterization, and Self-Assembly of Pencil-Shaped CoO Nanorods" Journal of the American Chemical Society . 128 (30): 9753–9760. doi :10.1021/ja0608702 . ISSN 0002-7863 . PMID 16866531 .
