Diphenylaminesulphonicacid,sodiumsalt
Diphenylamine-4-sulfonic acid sodium salt
CAS: 6152-67-6
Molecular Formula: C12H12NNaO3S
Diphenylaminesulphonicacid,sodiumsalt - Names and Identifiers
| Name | Diphenylamine-4-sulfonic acid sodium salt |
| Synonyms | Sodium 4-(phenylamino) Diphenylaminesulfonicacid,sod 4-(phenylamino)benzenesulfonate Sodium diphenylamine-4-sulfonate Diphenylaminesulphonicacid,sodiumsalt sodium 4-(phenylamino)benzenesulfonate monosodium bis(4-aminobenzenesulfonate) Diphenylamine-4-sulfonic acid sodium salt Diphenylamine-4-sulfonic acid sodium salt, ACS Diphenylamine-4-sulfonic acid, sodium salt, p.a. Benzenesulfonicacid,4-(phenylamino)-,monosodiumsalt Diphenylamine-4-sulfonic acid sodium salt redox indicator ACS |
| CAS | 6152-67-6 |
| EINECS | 228-165-6 |
| InChI | InChI=1/C12H11NO3S/c14-17(15,16)12-8-6-11(7-9-12)13-10-4-2-1-3-5-10/h1-9,13H,(H,14,15,16)/p-1 |
| InChIKey | DGXTZMPQSMIFEC-UHFFFAOYSA-M |
Diphenylaminesulphonicacid,sodiumsalt - Physico-chemical Properties
| Molecular Formula | C12H12NNaO3S |
| Molar Mass | 273.28 |
| Melting Point | >300 C |
| Water Solubility | soluble |
| Solubility | 820g/l |
| Appearance | White crystal |
| Color | Off-white to beige or light gray |
| Odor | Characteristic odour |
| PH | 5.7 (10g/l, H2O, 20℃) |
| Storage Condition | Store at +15°C to +25°C. |
| Stability | Stable. Incompatible with strong oxidizing agents, strong acids. |
| Sensitive | Sensitive to light |
| MDL | MFCD00036468 |
| Physical and Chemical Properties | Colorless or white small crystalline powder, soluble in water, soluble in hot alcohol. |
| Use | Used as common analytical reagents, redox indicators and desulfurizer in urea synthesis |
Diphenylaminesulphonicacid,sodiumsalt - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S36/37 - Wear suitable protective clothing and gloves. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29214400 |
Diphenylaminesulphonicacid,sodiumsalt - Introduction
Soluble in water and hot alcohol.
Last Update：2022-10-16 17:27:08
Diphenylaminesulphonicacid,sodiumsalt - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| purpose | used as a common analytical reagent, oxidation-reduction indicator and desulfurizer in urea synthesis oxidation-reduction indicator (E0 in sulfuric acid 1 mol/l = 0,83 volt, rH = 27-29). For example, when Fe2 is titrated with K2Cr2O7, sodium diphenylamine sulfonate is commonly used as an indicator. The reduced state of sodium diphenylamine sulfonate is colorless. When titrated to the stoichiometric point, a slight excess of K2Cr2O7 changes the sodium diphenylamine sulfonate from the reduced state to the oxidized state, and the solution shows a purplish red color, thus indicating the arrival of the titration end point. |
| production method | diphenylamine reacts with concentrated sulfuric acid at 180 ° C. To generate diphenylamine sulfonic acid, and then sodium hydroxide and barium chloride are reacted to obtain sodium salt. |
Last Update：2024-04-09 20:52:54
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