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TIRON |
| Synonyms. Tiron; 1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt; 3,5-Disulfocatechol disodium salt; 4,5-Dihydroxy-m-benzenedisulfonic acid disodium salt; Dihydroxy benzene disulfonate disodium salt; Disodium 1,2-dihydroxybenzene-3,5-disulfonate; Disodium 4,5-dihydroxy-1,3-benzenedisulfonate; Disodium 4,5-dihydroxy-m-benzenedisulfonate; Disodium 4,5-dihydroxybenzene-1,3-disulfonate; Disodium pyrocatechol-3,5-disulfonate; Sodium 1,2-dihydroxy-3,5-benzenedisulfonate; Sodium 1,2-dihydroxybenzenedisulfonate; Sodium 4,5-dihydroxybenzene-1,3-disulfonate; Sodium catechol sulfate; Sodium pyrocatechol-3,5-disulfonate; Tiferron; |
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| PRODUCT IDENTIFICATION | |
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CAS RN |
149-45-1 (anhydrous), 270573-71-2 (hydrate) |
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EINECS RN |
205-741-5 |
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FORMULA |
(OH)2C6H2(SO3Na)2 |
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MOLE WEIGHT |
314.19 |
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H.S CODE |
2908.99.1200 |
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SMILES |
c1(cc(cc(c1O)O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+] |
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CLASSIFICATION |
Indicator |
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EXTRA NOTES |
A colorimetric reagent for iron, manganese, titanium, molybdenum, and complexes of zirconium. (From Merck Index, 11th ed) [MeSH] |
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| PHYSICAL AND CHEMICAL PROPERTIES | |
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PHYSICAL STATE. |
white to off-white crystalline powder |
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MELTING POINT |
> 300 C |
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BOILING POINT |
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DENSITY |
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SOLUBILITY IN WATER |
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| SOLVENT SOLUBILITY |
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VAPOR DENSITY |
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log P(octanol-water) |
-3.07 |
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VAPOR PRESSURE |
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AUTOIGNITION TEMP |
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| pK |
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REFRACTIVE INDEX |
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FLASH POINT |
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| STABILITY AND REACTIVITY | |
| STABILITY | Stable under normal conditions. |
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INCOMPATIBLE MATERIALS |
Strong oxidizing agents |
| POLYMERIZATION |
Has not been reported |
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NFPA RATINGS |
Health: 2, Flammability: 0, Reactivity: 0 |
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| EXTERNAL LINKS & GENERAL DESCRIPTION |
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USA.gov - Tiron Google Scholar Search - 1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt U.S. National Library of Medicine - Tiron PubChem Compound Summary - Tiron KEGG (Kyoto Encyclopedia of Genes and Genomes) - Tiron http://www.ebi.ac.uk/ ChEMBL- Tiron http://www.ncbi.nlm.nih.gov/ - Tiron Material Safety Data Sheet - Tiron |
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| SALES SPECIFICATION | |
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APPEARANCE |
white crystalline powder |
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ASSAY |
98% min |
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WATER |
6.0% max |
| ASH |
0.2% max |
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LOSS ON DRYING |
5% max |
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SULFATE |
1.0% max |
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CHLORIDE |
0.5% max |
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| TRANSPORT & REGULATORY INFORMATION | |
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UN NO. |
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| HAZARD CLASS |
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| PACKING GROUP | |
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| SAFETY INFORMATION | |
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HAZARD OVERVIEW |
GHS (Globally Harmonised System) Classification: Skin irritation. Eye irritation. Specific target organ toxicity - single exposure. Hazard statements: Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. |
| SIGNAL WORD | Warning |
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PICTOGRAMS |
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HAZARD STATEMENTS |
H315-H319-H335 |
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P STATEMENTS |
P261-P305 + P351 + P338 |
| EC DIRECTIVES |
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| HAZARD CODES |
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RISK PHRASES |
36/37/38 |
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SAFETY PHRASES |
26-36 |
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| PACKING |
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Preserved in light-resistant and well-closed bottles |
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