543-90-8 Usage
Description
Cadmium acetate is a colourless crystal with a characteristic odour. It is not combustible,
but it decomposes on heating, producing toxic fumes of cadmium oxide. It is incompatible
with oxidising agents, metals, hydrogen azide, zinc, selenium, and tellurium. Occupational
exposure to cadmium and cadmium compounds occurs in workplaces mainly in the form
of airborne dust and fume. Occupations and workplaces include cadmium production and
refining, nickel–cadmium battery manufacture, cadmium pigment manufacture and formulation,
cadmium alloy production, mechanical plating, zinc smelting, soldering, and polyvinylchloride
compounding. Cadmium and compounds enter the body mainly by inhalation
and by ingestion.
Chemical Properties
Different sources of media describe the Chemical Properties of 543-90-8 differently. You can refer to the following data:
1. Cadmium acetate is colorless crystal with a characteristic odor. It is not combustible, but it
decomposes on heating, producing toxic fumes of cadmium oxide. It is incompatible with oxidizing agents, metals, hydrogen azide, zinc, selenium, and tellurium. Occupational
exposure to cadmium and cadmium compounds occurs in workplaces mainly in the form
of airborne dust and fumes. Occupations and workplaces include cadmium production
and refi ning, nickel-cadmium battery manufacture, cadmium pigment manufacture and
formulation, cadmium alloy production, mechanical plating, zinc smelting, soldering, and
polyvinylchloride compounding. Cadmium and compounds enter the body mainly by
inhalation and by ingestion
2. Cadmium acetate is a colorless crystalline
solid; freezing/melting point 5 130C. Hazard identification
(based on NFPA-704 M Rating System): Health 3, flammability 0, reactivity 0. Soluble in water
3. White crystalline powder
Physical properties
The anhydrous salt occurs as a colorless crystal while the dihydrate is a white crystalline solid; faint odor of acetic acid; density 2.34 g/cm3 (dihydrate2.01 g/cm3); melts at 255°C; dihydrate decomposes at 130°C; soluble in water and ethanol; pH of 0.2M aqueous solution 7.10.
Uses
Different sources of media describe the Uses of 543-90-8 differently. You can refer to the following data:
1. Cadmium acetate is used for glazing ceramics and pottery; in electroplating baths; in dyeing and printing textiles; and as an analytical reagent for sulfur, selenium, and tellurium.
2. Cadmium(II) acetate can be used in the synthesis of cadmium oxide (CdO) thin films, which find usage in gas sensors, phototransistors, and diodes. It can also be used in the synthesis of cadmium sulfide (CdS) nanoparticles, which can be used in a variety of optoelectronic devices.
Preparation
Cadmium acetate is prepared by treating cadmium oxide with acetic acid:CdO + 2CH3COOH → (CH3COO)2Cd + H2OAlso, the compound may be prepared by treating cadmium nitrate with acetic anhydride.
Air & Water Reactions
Slowly oxidized by moist air to form cadmium oxide [Merck 11th ed. 1989]. Water soluble.
Reactivity Profile
Salts, basic, such as Cadmium acetate, are generally soluble in water. The resulting solutions contain moderate concentrations of hydroxide ions and have pH's greater than 7.0. They react as bases to neutralize acids. These neutralizations generate heat, but less or far less than is generated by neutralization of the bases in reactivity group 10 (Bases) and the neutralization of amines. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Special Hazards of Combustion Products: Toxic cadmium oxide fumes may form in fires [USCG, 1999].
Health Hazard
Different sources of media describe the Health Hazard of 543-90-8 differently. You can refer to the following data:
1. Inhalation causes coughing, sneezing, symptoms of lung damage. Ingestion produces severe toxic symptoms; both kidney and liver injuries may occur. Contact with dust causes eye irritation.
2. Exposures to cadmium acetate cause cough, skin redness, abdominal pain, nausea, vomiting, salivation, choking, dizziness, and diarrhea. On catching fi re, cadmium acetate gives
off irritating or toxic metal oxide fumes. Inhalation of dust produces perforation of the
nasal septum, loss of smell, irritation, headache, metallic taste, and cough. Prolonged
exposures to cadmium acetate may produce shortness of breath, chest pain, and fl u-like
symptoms, chills, weakness, fever, muscular pain, pulmonary edema, liver and kidney
damage and death. Cadmium acetate may have effects on the kidneys and bones, leading
to kidney impairment and osteoporosis (bone weakness), and liver damage. Accidental
ingestion or inhalation of cadmium acetate may be fatal to workers
Fire Hazard
Special Hazards of Combustion Products: Toxic cadmium oxide fumes may form in fires.
Safety Profile
Confirmed human
carcinogen. Poison by intraperitoneal route. An experimental teratogen. Other
experimental reproductive effects. Human
mutation data reported. When heated to
decomposition it emits toxic fumes of Cd.
See also CADMIUM COMPOUNDS.
Potential Exposure
Cadmium acetate is a colorless crystalline
solid; freezing/melting point 5 130C. Hazard identification
(based on NFPA-704 M Rating System): Health 3, flammability 0, reactivity 0. Soluble in water
Shipping
UN2570 Cadmium compounds, Hazard Class:
6.1; Labels: 6.1-Poisonous materials, Technical Name
Required.
Incompatibilities
Compounds of the carboxyl group react
with all bases, both inorganic and organic (i.e., amines)
releasing substantial heat, water, and a salt that may be
harmful. Incompatible with arsenic compounds (releases
hydrogen cyanide gas), diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, sulfides (releasing
heat, toxic, and possibly flammable gases), thiosulfates,
and dithionites (releasing hydrogen sulfate and oxides of
sulfur). Incompatible with oxidizers (chlorates, nitrates,
peroxides, permanganates, perchlorates, chlorine, bromine,
fluorine, etc.); contact may cause fires or explosions. Keep
away from alkaline materials, strong bases, strong acids,
oxoacids, epoxides
Waste Disposal
Precipitation as sulfide, drying and return to supplier. Incineration is not
recommended.
Precautions
During use and handling of cadmium acetate, occupational workers should be careful.
Workers should use protective gloves and immediately remove contaminated clothing
and shoes. The workplace should provide an eye-wash fountain and quick-drench facilities. During use of cadmium acetate, workers should avoid heat, flame, ignition sources,
dust, and incompatibles.
Check Digit Verification of cas no
The CAS Registry Mumber 543-90-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,4 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 543-90:
(5*5)+(4*4)+(3*3)+(2*9)+(1*0)=68
68 % 10 = 8
So 543-90-8 is a valid CAS Registry Number.
InChI:InChI=1/C2H4O2.Cd/c1-2(3)4;/h1H3,(H,3,4);/q;+2/p-1
543-90-8Relevant articles and documents
Synthesis and structure determination of two neutral cadmium thiophenolate clusters
Gruber, Franziska
, p. 2467 - 2469 (2012)
The polynuclear complexes [Cd8S(SPh)14(DMF) 3] (1) and [Cd17S4(SH)2(SPh) 24(PPh3)2] (2) were prepared by an organometallic synthesis route. X-ray diffraction on single-crystals revealed a hexagonal closed packing of the cluster unit in 1 in the triclinic space group P1. Compound 2 crystallized in the monoclinic space group C2/c. In contrast to related cluster compounds, the ligand sphere of 1 is expanded resulting in an unusual trigonal-bipyramidal coordination of one of the cadmium ions. The heterogeneous composition of the ligand sphere of 2 results in the formation of individual cluster molecules. Copyright
Gronover, A.,Wohnlich, E.
, (1927)
Reactions of Cd(OAc)2·2H2O with variously substituted pyridines. Efforts to unravel the factors that determine structure/nuclearity of the products
Saxena, Priya,Thirupathi, Natesan
supporting information, p. 238 - 250 (2015/07/27)
The reactions of Cd(OAc)2·2H2O with variously substituted pyridines in methanol afforded unique one-dimensional coordination polymers (1D CPs), [Cd2(μ2-κ2:κ1-OAc)2(μ2-κ1:κ1-OAc)2L2] (L = NC5H5 (1), NC5H4Me-3 (2), and NC5H3Me2-3,5 (3)) and [Cd3(μ3-κ1:κ2-OAc)3(μ2-κ2-OAc)(μ2-κ2:κ1-OAc)2(NC5H3Me2-3,4)2] (4), and discrete and bimolecular complexes, [(Cd(OAc)2(NC5H3Me2-3,4)2(H2O)2] (5), [Cd(κ2-OAc)2(NC5H4Me-4)2(H2O)]·[Cd(κ2-OAc)2(H2O)2)] (6), [Cd(κ2-OAc)2L2L′]·xH2O (x = 0, L′ = H2O, L = NC5H4(OMe)-4 (7); NC5H4tBu-4 (8); x = 2, L = L′ = NC5H4(NMe2)-4 (9·2H2O)). The products were characterised by elemental analysis, IR, solution NMR (1H and 13C), solid-state CP-MAS 13C{1H} and 113Cd NMR, TGA/DTA analyses, and single crystal X-ray diffraction. Phase purity of 1-4 was verified by powder X-ray diffraction (PXRD). Plausible mechanisms of formation of the products are proposed based on a point zero charge model. 4 represents the first cadmium containing 1D CP that possesses a tridentate bridging (μ3-κ1:κ2) acetate coordination mode and 6 represents the first structurally characterised bimolecular cadmium(II) complex containing two different neutral cadmium(II) coordination species per formula unit. 9·2H2O was calcined at 500 °C to afford CdO as confirmed by PXRD and the morphology of CdO was studied by scanning electron microscopy.
Precursors for mixed metal oxide nanoparticles: Synthesis and characterization of μ-oxoalkoxides of some bivalent metals and their β-diketonates
Sharma, Malti,Bhagi, Ajay K.,Sharma, Harish K.,Priti, Ritu Kansal,Kumar, Ram,Kapoor, Pramesh N.
, p. 256 - 260 (2007/10/03)
New heterobimetallic derivatives of the type M{OAl(OPri) 2}2 (M = Sn, Pb, Cd) have been prepared by the reactions of M(OAc)2 with Al(OPri)3 in 1:2 molar ratio in hydrocarbon solvent (xylene/toluene) with the continuous liberation of isopropyl acetate. Furthermore, reactions of M{OAl(OPri) 2}2 (M = Ca, Pb, Cd) with β-diketones (acetylacetone, benzoyl acetone) have also been carried out to obtain modified derivatives. These new derivatives have been characterized by elemental analyses and spectroscopic [IR, NMR (1H, 13C, 27Al and 119Sn)] studies.
anhydrous, 99.995%
