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CAS No 90-80-2 , delta-Gluconolactone

  • Name: delta-Gluconolactone
  • Synonyms: Glucono-Delta-Lactone; Gluconic lactone; delta-Gluconolactone, coarse powder;delta-Gluconolactone; D-Glucono-1,5-lactone; D-Aldonolactone;D-Aldonolactone; delta-Gluconolactone; Glucono delta-lactone; D-(+)-Glucono-1,5-lactone;1,5-Gluconolactone; D-threo-Aldono-1,5-lactone; D-Gluconic acid, delta-lactone; Gluconic acid lactone; Glucolactone; D-Glucono-delta-lactone;
  • CAS Registry Number:
  • Melting Point: 151-155 ºC
  • Flash Point: 192.3 ºC
  • Boiling Point: 446.4 ºC at 760 mmHg
  • Density: 0.6
  • Refractive index: 1.607
  • Alpha: 65 º (C=1,H2O)
  • Water Solubility: 500 G/L (20 ºC)
  • Safety Statements: Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
  • Hazard Symbols: Xn: Harmful;Xi: Irritant;
  • Flash Point: 192.3 ºC
  • EINECS: 202-016-5
  • Molecular Weight: 178.14
  • InChI: InChI=1/C6H10O6/c7-1-2-3(8)4(9)5(10)6(11)12-2/h2-5,7-10H,1H2/t2-,3-,4+,5-/m1/s1
  • Risk Statements: S24/25
  • Molecular Formula: C6H10O6
  • Molecular Structure:CAS No:90-80-2 delta-Gluconolactone

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References of delta-Gluconolactone
Title: Gluconolactone
CAS Registry Number: 90-80-2
CAS Name: D-Gluconic acid d-lactone
Synonyms: glucono delta lactone; delta gluconolactone
Trademarks: Fujiglucon (Fujisawa)
Molecular Formula: C6H10O6
Molecular Weight: 178.14
Percent Composition: C 40.45%, H 5.66%, O 53.89%
Literature References: Prepn by oxidation of glucose with bromine water: Isbell, Pigman, J. Res. Natl. Bur. Stand. 10, 337 (1933); by oxidation of glucose in Acetobacter suboxydans: King, Cheldelin, Biochem. J. 68, 31P (1958). Structure: J. Stanék et al., The Monosaccharides (Academic Press, New York, 1963) p 271.
Properties: Crystals, dec 153°. Sweet taste (different from gluconic acid). [a]D20 +61.7° (c = 1). Soly in water 59 g/100 ml; in alc about 1 g/100 g. Insol in ether. Hydrolyzed to gluconic acid by water. A freshly prepd 1% aq soln has a pH of 3.6 changing to pH 2.5 within 2 hrs.
Optical Rotation: [a]D20 +61.7° (c = 1)
Use: Component of many cleaning cmpds because of the sequestering ability of the gluconate radical which remains active in alk solns; in the dairy industry to prevent milkstone; in breweries to prevent beerstone; as latent acid catalyst for acid colloid resins, particularly in textile printing; as a coagulant for tofu.