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CAS No 7440-20-2 , scandium

  • Name: scandium
  • Synonyms: 7440-20-2; 14391-83-4; 14093-03-9;(46sc)scandium; Scandium nitrate solution; AG-G-95699;scandium; escandio; Scandium standard for AAS;
  • CAS Registry Number:
  • Transport: UN 3089 4
  • Density: 1
  • Water Solubility: insoluble in water
  • Safety Statements: R11:Highlyflammable.;
  • Hazard Symbols: F:Highlyflammable;
  • EINECS: 231-129-2
  • Molecular Weight: 44.955912
  • InchiKey: SIXSYDAISGFNSX-UHFFFAOYSA-N
  • InChI: InChI=1S/Sc
  • Risk Statements: S16:Keepawayfromsourcesofignition-Nosmoking.;
  • Molecular Formula: Sc
  • Molecular Structure:CAS No:7440-20-2 scandium
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7440-20-2 SCANDIUM LUMP, VACUUM REMELTED, 3N; (99.9% REO)

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany ,Germany
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7440-20-2 Scandium carbonate

  • China Ruiyuan Group Limited [Manufacturers]
  • Tel: +86-21-50456736
  • Fax: +86-21-60853441
  • Address: No.188, Zhangyang Road, Pudong, Shanghai 200122, ,China
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7440-20-2 Scandium, Metal

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7440-20-2 Scandium

  • China Beijing Cerametek Materials Co. Ltd. [Manufacturer]
  • Tel: +86-10-6156.6641
  • Fax: +86-10-6156.1674
  • Address: Beijing Cerametek Materials Co. Ltd.
    2-E051, BPE, W. NongLin Rd.,
    FangShan, Beijing, 102400,
    China ,China
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7440-20-2 S-1188 SCANDIUM METAL

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7440-20-2 Scandium, Metal

  • Canada Treibacher Industrie Inc [, Manufacturer, Distributor/Wholesaler]
  • Tel: 001-416-5352600
  • Fax: 001-416-
  • Address: 515 Consumers Road, Suite 212 Toronto,OntarioCanada
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7440-20-2 SCANDIUM METAL

  • Canada Treibacher Industrie Inc [Manufacturer]
  • Tel: 416-535-2600
  • Fax: 416-535-2602
  • Address: Treibacher Industrie Inc
    67 Mowat Avenue, Suite 332
    M6K 3E3 Toronto, Ontario
    Canada ,Canada
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7440-20-2 SCANDIUM

  • United States PIDC [Manufacturer]
  • Tel: 734-930-9292
  • Fax: 734-930-9293
  • Address: PIDC
    4788 Runway Blvd.
    Ann Arbor, MI 48108 ,United States
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7440-20-2 Scandium

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7440-20-2 Scandium atomic absorption standard solution

  • China Hunan HMC Metals Co., Ltd. [Manufacturers]
  • Tel: +86-731-82503866
  • Fax: +86-731-82503898
  • Address: Unit 1409, No. 57 Dongpailou Road, Changsha,Hunan,China Changsha,HunanChina
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References of scandium
Title: Scandium
CAS Registry Number: 7440-20-2
Literature References: Sc; at. wt 44.955912; at. no. 21; valence 3. Group IIIb (3). Rare earth metal. Naturally occurring isotope (mass number): 45; known artificial radioactive isotopes: 40-44, 46-51. Abundance in earth's crust: 5-25 ppm. Widely dispersed in nature. Occurs in the minerals thortveitite [(Sc,Y)2Si2O7] and in other rare earth minerals such as davidite, ytterbite, orthite and cerrite; frequently associated with tin or zirconium. Predicted and called "ekaboron" by Mendeleev. Discovered by Nilson: Ber. 12, 551, 554 (1879); 13, 1430, 1439 (1880). Sepn from wolframite: Lukens, J. Am. Chem. Soc. 35, 1470 (1913); on basis of solubility: Fischer, Bock, Z. Anorg. Chem. 249, 146 (1942). Toxicity of the chloride: Haley et al., J. Pharm. Sci. 51, 1043 (1962). Review of isolns including ion-exchange techniques: F. H. Spedding et al., J. Electrochem. Soc. 105, 683-686 (1958). Review of prepn, properties and compds: R. C. Vickery, The Chemistry of Yttrium and Scandium (Pergamon Press, New York, 1960) 123 pp; idem, "Scandium, Yttrium and Lanthanum" in Comprehensive Inorganic Chemistry vol. 3, J. C. Bailar, Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 329-353; T. Moeller, "The Lanthanides", ibid. vol. 4, pp 1-101; F. H. Spedding in Kirk-Othmer Encyclopedia of Chemical Technology vol. 19 (John Wiley & Sons, New York, 3rd ed., 1982) pp 833-854; Chemistry of the Elements, N. N. Greenwood, A. Earnshaw, Eds. (Pergamon Press, New York, 1984) pp 1102-1110, 1423-1449.
Properties: Metal. Reported to be dimorphic. Crystalline forms: hexagonal close-packed a-form, d 2.9890; evidence of existence of face-centered cubic b-form, d 3.19, is inconclusive. mp 1541°. bp 2836°. Heat of fusion: 14.10 kJ/mol. Heat of sublimation (25°): 377.8 kJ/mol. E°(aq) Sc3+/Sc -2.08 V (calc). Salts are hydrolyzed in aq soln.
Melting point: mp 1541°
Boiling point: bp 2836°
Density: d 2.9890; d 3.19
 
Derivative Type: Oxide
Synonyms: Scandia
Molecular Formula: O3Sc2
Molecular Weight: 137.91
Percent Composition: O 34.80%, Sc 65.20%
Properties: Fine white powder, d 3.864. Obtained by igniting the metal or its compds. Readily sol in hot or concd acids.
Density: d 3.864
 
Derivative Type: Hydroxide
Molecular Formula: Sc(OH)3
Molecular Weight: 95.98
Percent Composition: Sc 46.84%, O 50.01%, H 3.15%
Properties: White gelatinous precipitate forming a hard, horny mass on exposure to air; obtained by the action of alkalies on solns of the salts; dissolves readily in dil acids.
 
Derivative Type: Chloride
Molecular Formula: ScCl3
Molecular Weight: 151.31
Percent Composition: Sc 29.71%, Cl 70.29%
Properties: White deliquescent solid. Prepd by the action of a mixture of sulfur chloride and chlorine on the heated oxide; mp 960°; crystallizes with 6 mols of water. Sol in water. Practically insol in alc. LD50 in mice: 755 mg/kg i.p.; 4 g/kg orally (Haley).
Melting point: mp 960°
Toxicity data: LD50 in mice: 755 mg/kg i.p.; 4 g/kg orally (Haley)
 
Derivative Type: Sulfate
Molecular Formula: Sc2(SO4)3
Molecular Weight: 378.10
Percent Composition: Sc 23.78%, S 25.44%, O 50.78%
Properties: Pentahydrate, d 2.519. Most sol of the sulfates of the rare earths (54.6 g/100 ml at 25°). Converted to the dihydrate on heating above 100°.
Density: d 2.519
 
Derivative Type: Nitrate
Molecular Formula: Sc(NO3)3
Molecular Weight: 230.97
Percent Composition: Sc 19.46%, N 18.19%, O 62.34%
Properties: Crystallizes as the tetrahydrate, prismatic deliquescent crystals, readily dissolves in water or alc.