PHENOLDISULFONIC ACID
- CAS NO.：96-77-5
- Empirical Formula: C6H6O7S2
- Molecular Weight: 254.24
- MDL number: MFCD00152742
- EINECS: 202-533-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-10-29 16:53:45
What is PHENOLDISULFONIC ACID?
The Uses of PHENOLDISULFONIC ACID
In the manufacture of aminophenoldisulfonic acids which are intermediates in the dye industry.
Production Methods
Phenoldisulfonic acid is obtained by hydrolysis of the dichloride with ethyl alcohol and/or water. Nitration and reduction of this acid gives 5- amino-4-hydroxy-1,3-benzenedisulfonic acid. 4-Hydroxy-1,3-benzenedisulfonic acid accelerates the rearrangement of cumene hydroperoxide in the Hock – Lang phenol process.
Purification Methods
Crystallise the acid from EtOH/diethyl ether. [Beilstein 11 H 250, 11 I 58, 11 II 139, 6 III 522.]
Properties of PHENOLDISULFONIC ACID
| Melting point: | >99.85°C |
| Boiling point: | 367.45°C (rough estimate) |
| Density | 1.606 (estimate) |
| refractive index | 1.6550 (estimate) |
| pka | -1.13±0.45(Predicted) |
| form | liquid |
| color | Yellow to brown |
| Water Solubility | Reacts with water |
| EPA Substance Registry System | 1,3-Benzenedisulfonic acid, 4-hydroxy- (96-77-5) |
Safety information for PHENOLDISULFONIC ACID
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P310:Immediately call a POISON CENTER or doctor/physician. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for PHENOLDISULFONIC ACID
Abamectin manufacturer
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product: PHENOL DISULPHONIC ACID 96-77-5 99%
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