CAS No 149-45-1 , Tiron Search by region : Germany

Name: Tiron
Synonyms: Catechol 3,5-disulphonic acid disodium salt monohydrate; Disodium 4,5-dihydroxy-1,3-benzenedisulfonate hydrate; Pyrocatechol-3,5-disulfonic acid disodium salt hydrate;1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt hydrate; Tiron(rg; Sodium 1,2-dihydroxybenzene-3,5-disulphonate monohydrate;Tiron; disodium 4,5-dihydroxybenzene-1,3-disulphonate;
CAS Registry Number:149-45-1
Melting Point: 300 ºC
Safety Statements: R36/37/38
Hazard Symbols: Xi: Irritant;
HS Code: 29082000
EINECS: 205-741-5
Molecular Weight: 332.20
InChI: InChI=1/C6H6O8S2.2Na/c7-4-1-3(15(9,10)11)2-5(6(4)8)16(12,13)14;;/h1-2,7-8H,(H,9,10,11)(H,12,13,14);;/q;2*+1/p-2
Risk Statements: S26;S36
Molecular Formula: C6H4Na2O8S2.H2O
Molecular Structure:

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References of Tiron

Title: Tiron
CAS Registry Number: 149-45-1
CAS Name: 4,5-Dihydroxy-1,3-benzenedisulfonic acid disodium salt
Synonyms: 1,2-dihydroxybenzene-3,5-disulfonic acid disodium salt; disodium-1,2-dihydroxybenzene-3,5-disulfonate; sodium catechol disulfonate; sodium pyrocatechol-2,4-disulfonate; disodium pyrocatechol-3,5-disulfonate
Molecular Formula: C6H4Na2O8S2
Molecular Weight: 314.20
Percent Composition: C 22.94%, H 1.28%, Na 14.63%, O 40.74%, S 20.41%
Literature References: Chelating agent. Prepn: Fukayama et al., JP 52 4327 (1952 to Sanwa Pure Chem.), C.A. 48, 5215c (1954). Use in HPLC determn of iron, titanium, osmium and aluminum: E. Wang, A. Liu, Microchem. J. 43, 191 (1991); in spectrophotometric determn of titanium: S. Honshi et al., Anal. Sci. 13, 863 (1997).
Properties: Crystals, nonhygroscopic. Very freely sol in water. Produces water-sol, colored compds with metal salts. With ferric chloride the resulting complex yields a deep blue soln at pH below 5. Titanium salts give an orange color, copper salts produce a green-yellow, and hexavalent molybdenum a canary-yellow color.
Use: In determination of trace metals.