BDSA
Benzidine 2,2-Disulphonic Acid
Molecular Formula
C₁₂H₁₂N₂O₆S₂
Molecular Weight
344.36 g/mol
Appearance
Light beige to brownish powder
CAS Number
117-61-3
Specifications
| Parameter | Specification |
|---|---|
| Appearance | Light beige to brownish powder |
| Purity (Diazotisation method) | Min. 95% |
| Free Acid | Max. 1.5% |
| Moisture | Max. 5.0% |
| Molecular Formula | C₁₂H₁₂N₂O₆S₂ |
| Molecular Weight | 344.36 g/mol |
| Solubility | Soluble in hot water; slightly soluble in cold water |
Quality & Testing Methods
Diazotisation Titration
Sample dissolved in HCl, titrated with 0.1N NaNO₂, endpoint by starch-iodide paper
Karl Fischer Titration
Moisture determination per ASTM E203
Acid-Base Titration
Free acid content — titrated with 0.1N NaOH, phenolphthalein indicator
Applications
Packaging
- 25 kg HDPE bags
- 50 kg HDPE bags
- Jumbo bags (500/1000 kg)
Labelling: GHS/REACH compliant labelling. Export packaging available.
Incoterms: FOB Dahej/Nhava Sheva, CIF, CFR available.
Shipping
- Export to EU, USA, South-East Asia, Middle East, Africa
- GHS-compliant Safety Data Sheets (SDS) provided
- UN dangerous goods classification as applicable
- COA (Certificate of Analysis) with every shipment
Safety Information
Signal Word
Warning
Hazard Classification
Irritant, Sensitizer
GHS Pictograms
Storage Conditions
Store in cool, dry, well-ventilated area. Avoid contact with strong oxidizers.
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