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CAS No 7784-25-0 , aluminum

  • Name: aluminum
  • Synonyms: Ammonium aluminum alum; Aluminum ammonium alum; Caswell No. 041B;disulfate;aluminum;Curb; Exsiccated ammonium alum; Burnt ammonium alum;azanium;
  • CAS Registry Number:
  • Boiling Point: 330 ºC at 760 mmHg
  • Density: 1.64
  • Water Solubility: 15g/100ml
  • EINECS: 232-055-3
  • Molecular Weight: 237.145199
  • InchiKey: LCQXXBOSCBRNNT-UHFFFAOYSA-K
  • InChI: InChI=1S/Al.H3N.2H2O4S/c;;2*1-5(2,3)4/h;1H3;2*(H2,1,2,3,4)/q+3;;;/p-3
  • Molecular Formula: AlH4NO8S2
  • Molecular Structure:CAS No:7784-25-0 aluminum

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References of aluminum
Title: Aluminum Ammonium Sulfate
CAS Registry Number: 7784-25-0
Synonyms: Burnt ammonium alum; exsiccated ammonium alum
Molecular Formula: AlH4NO8S2
Molecular Weight: 237.15
Percent Composition: Al 11.38%, H 1.70%, N 5.91%, O 53.97%, S 27.04%
Line Formula: AlNH4(SO4)2
Literature References: Prepn: Gmelins, Aluminum (8th ed) 35B, pp 508-515 (1934). Crystal structure of dodecahydrate: Larson, Cromer, Acta Crystallogr. 22, 793 (1967).
Properties: About 97-98% pure, the balance is chiefly excess Al2O3. White powder. One gram dissolves in about 20 ml cold, 1.5 ml boiling water, usually incompletely; practically insol in alcohol. Keep well closed.
 
Derivative Type: Dodecahydrate
Synonyms: Ammonium alum
Properties: It is about 99.5% pure. Colorless crystals, white granules or powder; styptic taste. d 1.65. mp 94.5°. At about 250° becomes anhydr; decomposes above 280°. One gram dissolves in 7 ml water, 0.5 ml boil. water; freely soluble in glycerol; practically insol in alc. The aq soln is acid to litmus; pH of 0.05 molar soln 4.6.
Melting point: mp 94.5°
Density: d 1.65
 
Use: Purifying drinking water; in baking powders; dyeing and printing fabrics; manuf pigments, lakes, artificial gems, paper, vegetable glue, marble and porcelain cements; fireproofing; tanning; electrolytic copperplating. See also Aluminum Potassium Sulfate.
Therap-Cat: Astringent, styptic.
Therap-Cat-Vet: Astringent, styptic.
Keywords: Astringent.