Cadmium formate

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Structural formula
2 ·Formate anion Cadmium ion
General
Surname Cadmium formate
other names

Cadmium diformate

Molecular formula C 2 H 2 CdO 4
Brief description

white solid

External identifiers / databases
CAS number 4464-23-7
EC number 224-729-0
ECHA InfoCard 100,022,482
PubChem 197815
Wikidata Q15627973
properties
Molar mass 202.45 g mol −1
Physical state

firmly

density

3.297 g cm −3

Melting point

> 350 ° C

solubility

soluble in water (12.3% by mass at 20 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
06 - Toxic or very toxic 08 - Dangerous to health 09 - Dangerous for the environment

danger

H and P phrases H: 331-301-351-373-410
P: 261-273-281-301 + 310-311-501
Toxicological data

162 mg kg −1 ( LD 50 ,  rat ,  oral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cadmium formate is a chemical compound of cadmium from the group of carboxylic acid salts with the constitutional formula Cd (HCOO) 2 .

Extraction and presentation

Cadmium formate can be made by dissolving cadmium carbonate in a hot, 15% aqueous solution of formic acid .

properties

Cadmium formate is a white solid that is soluble in water. It decomposes when heated from around 210 ° C, producing carbon dioxide , carbon monoxide , formic acid and cadmium oxide . The compound has a crystal structure with the space group C 2 / c (space group no. 15) . The dihydrate that also exists has a monoclinic crystal structure with the space group P 2 1 / c (No. 14) . Template: room group / 15Template: room group / 14

use

Cadmium formate can be used as a catalyst in the vinylation of hydroxy carbon esters and esters of polyhydric alcohols .

Individual evidence

  1. ↑ a b c d e f g Entry for CAS no. 4464-23-7 in the GESTIS substance database of the IFA , accessed on September 11, 2014(JavaScript required) .
  2. ↑ a b data sheet cadmium (II) formats, 99.9% trace metals basis from Sigma-Aldrich , accessed on September 11, 2014 ( PDF ).
  3. ↑ Entry on cadmium diformate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  4. ↑ a b Barbara Malecka, Agnieszka Lacz: Thermal decomposition of cadmium formats in inert and oxidative atmosphere. In: Thermochimica Acta. 479, 2008, pp. 12-16, doi : 10.1016 / j.tca.2008.09.003 .
  5. ↑ G. Weber: The structure of anhydrous cadmium formats. In: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 36, pp. 1947-1949, doi : 10.1107 / S0567740880007595 .
  6. ↑ Cadmium (II) formats Dihydrate, Acta Cryst. (1974). B30, 1880; BY MICHAEL L. POST AND JAMES TROTTER; Department of Chemistry, University of British Columbia, Vancouver 8, BC, Canada.
  7. ↑ Peter Müller, Heidi Müller-Dolezal, Renate Stoltz, Hanna Söll, Irmgard Völler: Houben-Weyl Methods of Organic Chemistry Vol. VI / 3, 4th Edition: Ethers… Georg Thieme Verlag, 2014, p. 92 ( limited preview in Google Book search).