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CAS No 96-77-5 , 4-hydroxybenzene-1,3-disulfonic acid

  • Name: 4-hydroxybenzene-1,3-disulfonic acid
  • Synonyms: 4-hydroxybenzene-1,3-disulfonic acid; Phenol-2,4-disulfonic acid; 4-hydroxybenzene-1,3-disulfonic acid; 4-Hydroxy-1,3-benzenedisulfonic acid;96-77-5;
  • CAS Registry Number:
  • Flash Point: °C
  • Boiling Point: °Cat760mmHg
  • Density: 1.905g/cm3
  • Refractive index: 1.655
  • Flash Point: °C
  • EINECS: 202-533-6
  • Molecular Weight: 254.23764
  • InchiKey: JXBUOZMYKQDZFY-UHFFFAOYSA-N
  • InChI: InChI=1S/C6H6O7S2/c7-5-2-1-4(14(8,9)10)3-6(5)15(11,12)13/h1-3,7H,(H,8,9,
    10)(H,11,12,13)
  • Molecular Formula: C6H6O7S2
  • Molecular Structure:CAS No:96-77-5 4-hydroxybenzene-1,3-disulfonic acid

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References of 4-hydroxybenzene-1,3-disulfonic acid
Title: Phenoldisulfonic Acid
CAS Registry Number: 96-77-5
CAS Name: 4-Hydroxy-1,3-benzenedisulfonic acid
Synonyms: 4-hydroxy-m-benzenedisulfonic acid; 1-phenol-2,4-disulfonic acid
Molecular Formula: C6H6O7S2
Molecular Weight: 254.24
Percent Composition: C 28.34%, H 2.38%, O 44.05%, S 25.22%
Literature References: Conveniently prepd by hydrolysis of the dichloride which is obtained by the action of chlorosulfonic acid on phenol at room temp: Pollak et al., Monatsh. Chem. 46, 395 (1925). Monograph: E. E. Gilbert, Sulfonation and Related Reactions (Interscience, New York, 1965) 529 pp.
Properties: Deliquescent needles, vague melting range from 89° to 100°. Decomp above 100°. Freely sol in water, methanol. Practically insol in ether, petr ether.
Use: In the manuf of aminophenoldisulfonic acids which are intermediates in the dye industry.