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CADMIUM (Properties of the Element and Common Binary Componds)

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CADMIUM (Properties of the Element and Common Binary Componds) 20 20 Name MW bp °C/mm (mp) D4 nD CADMIUM (properties of the element and common binary componds) Cadmium (elemental) Cadmium II Oxide Cadmium II Sulfide (α-form) Atomic number: 48 Atomic/molecular weight: 112.4 128.41 144.46 CAS #: 7440-43-9 1306-19-0 1306-23-6 Thermal Properties Melting point: 321.07˚C 1540˚ - sublimes 980˚ - sublimes Enthalpy of melting: 6.2 kJ/mole 243.5 kJ/mole - sublimes 201.7 kJ/mole Boiling point: 767˚C 2,980˚C Enthalpy of vaporization: 99.7 kJ/mole Thermal conductivity, 25˚C: 96.6 W/(m K) Heat capacity, 20˚: 25.9 J/kg˚ 43.4 J/mol˚K Electrical Properties Resistivity, 22˚: 7.27 μΩ·cm 400˚: 34.1 μΩ·cm 795˚: 67.3 W-m Electrode potential (st'd hydrogen scale): -0.402 V Dielectric constant: 17.2 9.5-10.3 Dielectric strength: Bandgap energy: 222 kJ/mole Optical Properties Reflectivity: 0.67 Refractive index; α 2.49 2.506 β γ 2.529 Acoustical Properties Velocity of sound: 2,310 m/s Bulk Properties Specific gravity, 20˚: 8.65 8.15 4.82 Molar volume: 13.00 cm3 Young's modulus: 50,000 MPa Tensile strenstrength:gth: 71 MPaa Hardness, Mohs: 2.0 Crystal form: Hexagonal Cubic Hexagonal Space group: Cell parameters, a: 297.93 pm 469.53 pm 413.48 pm b: 674.9 pm c: 561.81 pm α: β: Chemical Properties Oxidation states: 0, 1, 2 Electronegativity, Pauling: 1.7 Ionization potential, spectral: 8.993 eV 16.908 eV Schematic of CdS/CdTe based solar cell アヅマックス株式会社 TEL 03-5543-1630 FAX 03-5543-0312 [email protected] 20 20 Name MW bp °C/mm (mp) D4 nD COMPOUNDS CXCD010 劇物 CADMIUM ACETATE, dihydrate 230.49/266.54 (254-6) 2.01 C H CdO ·2H O TOXICITY: oral rat, LD50: 360 mg/kg O 4 6 4 2 - +2 Dehydrates >135° Solubility, water, 20°: 347 g/l H C C O Cd 3 2 Produces irridescent effects in porcelains Solubility of anhydrous salt, methanol: 130 g/l 1 Forms CdS nanoparticles with Na2S. Precursor for shape controlled CdSe nanocrystals.2 1. Nemeth, J. et al. Colloid. Polym. Sci . 2000, 278 , 211. 2. Liu, L. et al. J. Am. Chem. Soc. 2009, 131 , 16423. HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions [5743-04-4] TSCA HMIS: 3-1-0-X 25g¥7,500 100g ¥14,300 AKC159.8 劇物 （既）2-1843 CADMIUM DIETHYLDITHIOCARBAMATE, 96% 408.94 (63-9) 1.48 C10H20CdN2S4 TOXICITY: oral rat, LD50: 900 mg/kg Soluble: toluene, chloroform Forms CdS films for solar cells by thermal decomposition >350°.1 CH3CH2 S S CH2CH3 N C Cd CN Forms CdS nanowires on treatment with ethylenediamine at 117°C.2 S CH3CH2 S CH2CH3 3 In combination with (EtO)4Si forms SiO2·CdS nanocomposites. 1. Tsuji, M. et al. Jpn. Patent 10 284,744, 1997; Chem. Abstr. 129, 333306. 2. Yan, P. et al. Chem. Comm . 1999, 1293. 3. Monteiro, O. et al. Chem. Mater. 2002, 14 , 2900. HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions [14239-68-0] TSCA EC 238-113-4 HMIS: 4-2-0-X 25g¥14,300 100g ¥43,500 CXCD045 劇物 CADMIUM FORMATE 202.45 (>325) C H CdO TOXICITY: oral rat, LD50: 1,780 mg/kg O 2 2 4 Soluble: water Forms dihydrate - +2 (HC O )2 Cd Density of 83% aqueous solution: 2.3 Forms phosphors by firing mixtures with dopants.1 Forms CdS by reaction with thiourea in methanol.2 1. Chadha, S. U.S. Patent 6,042,746, 2000. 2. Stoev, M. et al. Monatsh. Chem . 1994, 125 , 1215. HYDROLYTIC SENSITIVITY: 5: forms reversible hydrate [4464-23-7] EC 224-729-0 HMIS: 4-2-0-X 25g ¥24,000 INCD070 劇物 （既）1-200 CADMIUM IODIDE 366.21 796 (387) 5.670 CdI2 TOXICITY: oral mus, LD50: 166 mg/kg CdI2 Soluble: ethanol, acetone, ether ΔHform: -203 kJ/mole Solubility, water, 25°: 860 g/l Employed in photolithography, phosphor manufacture [7790-80-9] TSCA EC 232-223-6 HMIS: 3-0-0-X 25g ¥12,500 AKC160 劇物 （既）2-2181 CH3 CADMIUM 2,4-PENTANEDIONATE, hydrate 310.64 (209-214 dec) C O C10H14CdO4·xH 2 O HC Cd Yellow powder C O 2 CH3 HYDROLYTIC SENSITIVITY: 4: no reaction with water under neutral conditions [14689-45-3] TSCA EC 238-730-9 HMIS: 3-1-0-X 10g¥20,500 50g ¥68,500 OMCD020 劇物 DIMETHYLCADMIUM 142.88 105.5 (-4.5) 1.986 1.5488 C2H6Cd Flashpoint: -18°C (0°F) CH Cd CH Vapor pressure, 20°C: 28.4 mm HIGHLY TOXIC 3 3 ΔHform: 15.2 kcal/mole Employed in thin film deposition of CdS and CdSe by MOCVD HYDROLYTIC SENSITIVITY: 9: reacts extremely rapidly with atmospheric moisture - may be pyrophoric - glove box or sealed system required [506-82-1] TSCA EC 208-055-4 HMIS: 4-4-3-X 25g inquire + cylinder or bubbler OMCD020.2 DIMETHYLCADMIUM, 10% in heptane 142.88 0.74 CH3 Cd CH3 C2H6Cd HIGHLY TOXIC HYDROLYTIC SENSITIVITY: 8: reacts rapidly with moisture, water, protic solvents [506-82-1] TSCA EC 208-055-4 HMIS: 4-4-2-X 250g inquire* * includes zCYL-L-0900 liquid dispensing cylinder アヅマックス株式会社 TEL 03-5543-1630 FAX 03-5543-0312 [email protected]@azmax.co.jpjp.
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