Molekula
Barium diphenylamine-4-sulfonate
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ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Barium diphenylamine-4-sulfonate is a barium salt used as a redox indicator in analytical chemistry, for example in dichromate titrations of iron(II). It is a white to pale yellow crystalline powder with a molecular weight of 633.88 g/mol. Its CAS number is 6211-24-1, and it has the molecular formula (C12H10NO3S)2Ba. Store at ambient temperatures. Handle with care due to the warning signal word. Molekula supplies Barium diphenylamine-4-sulfonate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
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25 g — $256.50 per pack
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Specifications
| Property | Value |
|---|---|
| Appearance | White to grey powder |
| Melting Point | 298-302°C |
| Loss on Drying | ≤10.00% |
| Solubility in water | Slightly soluble in water |
| Suitability as redox indicator | Passes test |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 300 °C |
Source: PubChem CID 80342 (PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 87866266 |
| CAS Number | 6211-24-1 |
| IUPAC Name | bis(4-anilinobenzenesulfonate);barium(2+) |
| EC Number | 228-278-0 |
| Molecular Formula | (C12H10NO3S)2Ba |
| Molecular Weight | 633.88 |
| Exact Mass | 633.9815 |
| SMILES | C1=CC=C(C=C1)NC2=CC=C(C=C2)S(=O)(=O)[O-].C1=CC=C(C=C1)NC2=CC=C(C=C2)S(=O)(=O)[O-].[Ba+2] |
| InChIKey | IVCNVXFNTKXMCA-UHFFFAOYSA-L |
| InChI | InChI=1S/2C12H11NO3S.Ba/c2*14-17(15,16)12-8-6-11(7-9-12)13-10-4-2-1-3-5-10;/h2*1-9,13H,(H,14,15,16);/q;;+2/p-2 |
| PubChem CID | 80342 |
| UN Number | UN1564 |
| REACH Code | Y110 |
| Tariff Code | 29214400 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H332 Harmful if inhaled
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 4-anilinobenzenesulfonate;barium(2+)
- 4-Sulfodiphenylamine barium salt
- Barium bis(4-anilinobenzenesulphonate)
- barium diphenylamine sulfonate
- Benzenesulfonic acid, 4-(phenylamino)-, barium salt
- Benzenesulfonic acid, 4-(phenylamino)-, barium salt (2:1)
- Diphenylamine-4-sulfonic acid barium salt
- N-Phenylsufanilic acid barium
- N-Phenylsufanilic acid, barium salt
- Sulfanilic acid, N-phenyl-, barium salt (2:1)
Frequently asked questions
What is barium diphenylamine-4-sulfonate used for?
It is primarily used as an oxidation-reduction (redox) indicator and as a reagent in analytical chemistry for detecting certain metal ions, for example in dichromate titrations of iron(II).
What is the chemical formula and molecular weight?
The formula is (C12H10NO3S)2Ba with a molecular weight of 633.88 g/mol.
How should barium diphenylamine-4-sulfonate be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available?
Available in analytical grade for laboratory use.
Can Molekula supply it in bulk?
Yes, Molekula can supply barium diphenylamine-4-sulfonate in bulk quantities—please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.