Benzaldehyde-2,4-disulfonic acid
- CAS NO.：88-39-1
- Empirical Formula: C7H6O7S2
- Molecular Weight: 266.25
- MDL number: MFCD00450438
- EINECS: 201-826-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is Benzaldehyde-2,4-disulfonic acid?
Description
Benzaldehyde-2,4-disulfonic acid is freely soluble in water. The sodium salt crystallizes with 2 mol of H 2 O and is freely soluble in water and poorly soluble in ethyl alcohol. It is made by reaction of 2,4-dichlorobenzaldehyde with sodium hydrogensulfite liquor or oxidation of 2,4- toluenedisulfonic acid with manganese dioxide in sulfuric acid. The acid is used in the production of triphenylmethane dyes and wetting agents.
Properties of Benzaldehyde-2,4-disulfonic acid
| Density | 1.815±0.06 g/cm3(Predicted) |
| pka | -1.55±0.50(Predicted) |
| CAS DataBase Reference | 88-39-1(CAS DataBase Reference) |
| EPA Substance Registry System | 1,3-Benzenedisulfonic acid, 4-formyl- (88-39-1) |
Safety information for Benzaldehyde-2,4-disulfonic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
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 Benzaldehyde-2,4-disulfonic acid
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