Tiron
Synonym(s):1,2-Dihydroxy-3,5-benzenedisulfonic acid disodium salt, di-Sodium 4,5-dihydroxy-1,3-benzenedisulfonate, Sodium pyrocatechol-3,5-disulfonate, Tiron;3,5-Pyrocatecholdisulfonic acid disodium salt monohydrate
- CAS NO.：149-45-1
- Empirical Formula: C6H7NaO8S2
- Molecular Weight: 294.22
- MDL number: MFCD00149531
- EINECS: 205-741-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:25:11
What is Tiron?
Chemical properties
light tan powder
The Uses of Tiron
Tiron is a superoxide scavenger used in the study and examination of oxide electronics. Maintains the ability to remove or destroy magnetic moments which may occur on the surface of such materials.
The Uses of Tiron
In determination of trace metals.
What are the applications of Application
Tiron is an indicator for complexometry
Definition
ChEBI: Tiron is an organic molecular entity.
Purification Methods
Recrystallise it from water [Hamaguchi et al. Anal Chim Acta 9 563 1962]. Itisan indicator colour reagent for Fe, Mn, Ti and Mo ions and complexes with Al, Cd, Co, Co, Fe (III), Mn, Pd, UO22+, VO2+ and Zn. [Beilstein 11 IV 630.]
Properties of Tiron
| Melting point: | 300 °C |
| Density | 2.064g/cm3 at 20℃ |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Store at +15°C to +25°C. |
| solubility | 1350g/l |
| form | Powder |
| color | Off-white |
| PH | 5.0 (10g/l, H2O, 20℃) |
| Water Solubility | soluble |
| Sensitive | Hygroscopic |
| Merck | 14,9465 |
| BRN | 4629740 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 149-45-1(CAS DataBase Reference) |
| EPA Substance Registry System | Disodium 4,5-dihydroxy-1,3-benzenedisulfonate (149-45-1) |
Safety information for Tiron
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for Tiron
Tiron manufacturer
Innovative
Mumbai
product: White to Off White Tiron (CAS Number: 149-45-1), Packaging Size: 1 kg / 5 kg / 10 kg / 25 kg
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