Nickel (II) salicylate

Structural formula
${\displaystyle \mathrm {\ {\Biggl [}} }$ ${\displaystyle \mathrm {\ {\Biggr ]}_{2}} }$
General
Surname	Nickel (II) salicylate
other names	Nickel salicylate
Molecular formula	C 14 H 10 NiO 6
External identifiers / databases
CAS number 30588-10-4 Wikidata Q1985593
properties
Molar mass	332.92 g mol −1
Physical state	firmly
Melting point	Decomposition from 105 ° C
safety instructions
GHS hazard labeling no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Nickel (II) salicylate is the nickel salt of salicylic acid and belongs to the group of salicylates .

Extraction and presentation

Nickel salicylate can be produced from nickel (II) hydroxide and salicylic acid by the salt formation reaction .

${\displaystyle \mathrm {Ni(OH)_{2}+2\ C_{6}H_{4}(OH)(COOH)\longrightarrow } }$ ${\displaystyle \mathrm {(C_{6}H_{4}(OH)(COO))_{2}Ni+2\ H_{2}O} }$

properties

Nickel salicylate crystallizes as tetrahydrate in the monoclinic crystal system in the space group P 2 ₁ / n (space group no. 14, position 2) with the lattice parameters a = 678.74  pm , b = 515.91 pm, c = 2313.30 pm and β = 90.928 °. In the unit cell contains two formula units .

The tetrahydrate are to be on heating 25-105 ° C water of crystallization from. The decomposition ends at 430 ° C with nickel (II) oxide as the end product.

Individual evidence

1. ↑ ^{a b} K. Kishore, R. Nagarajan: "Kinetic and mechanistic studies on the decomposition of nickel salicylate", in: Thermochimica Acta , 1983 , 67  (2-3), pp. 351-360; doi: 10.1016 / 0040-6031 (83) 80116-6 .
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
3. ^ ^{A b} J. Wang, L. Yuan, Y. Yang, J. Sun, K. Zhang: "Preparation by a Rheological Phase Reaction Method and Thermal Decomposition Reaction Mechanism of Nickelous Salicylate Tetrahydrate", in: Wuhan University Journal of Natural Sciences , 2003 , 8  (3), pp. 853-856; doi: 10.1007 / BF02900830 .