Product Name: Sodium O,O‑Diisobutyl Dithiophosphate
Trade Name: Isobutyl Sodium Black Reagent; Dithiophosphate IBS
CAS No.: 53378‑51‑1
EC Number: 258‑508‑5
Molecular Formula: C8H18NaO2PS2 or C8H18O2PS2Na
Molecular Weight: 264.32 g/mol
HS‑Code: 29313990UN‑No: UN 1719, Hazard Class 8, Packing Group II (Corrosive)
1. Physical & Chemical Properties
Melting Point 55 ℃ (solid pure material)
Boiling Point292.8 ℃ @760 mmHg
Flash Point>130 ℃ (closed cup)
Solubility in water Miscible / freely soluble in water @20℃
Solubility Soluble in CS₂; slightly soluble in benzene, toluene, alcohols
Stability Stable under normal storage; decomposes under strong acid to release toxic sulphur‑containing gases
2. Typical Specifications (Industrial Flotation Grade, Aqueous Solution)
| Item | Specification | Test Condition |
|---|---|---|
| Appearance | Yellow to dark‑reddish‑brown liquid | Visual @25 ℃ |
| Odor | Mild pungent characteristic odour | Organoleptic |
| Active Substance Content | 49.0‑53.0 % | Titration |
| pH (undiluted) | 10.0‑13.0 | 25 ℃ |
| Density | 1.08‑1.12 g/cm³ | 20 ℃ |
| Insoluble matter | ≤0.2 % | Gravimetric |
3. Main Applications
- Mineral flotation collector: For gold, silver, copper, lead‑zinc sulphide ores.
- Weak collecting power for pyrite under alkaline pulp conditions; weak frothing property; good performance for complex polymetallic ores.
- Minor usage: metal‑working additive, lubricant auxiliary agent.
4. Key Performance Features
Good selectivity for sulphide minerals in alkaline flotation circuit
Low foaming compared with xanthate collectors
Suitable for multi‑metal separation process
Compatible with common flotation modifiers (lime, sodium carbonate)
5. Recommended Dosage
Typical dosage in flotation circuit: 20‑100 g per ton ore, diluted with water before adding into flotation cell.6. Compatibility &
Incompatibility
✅ Compatible: Lime, soda ash, water glass, other sulphide collectors
⚠️ Incompatible: Strong mineral acids, strong oxidizing agents (risk of toxic gas release)7. Storage & Shelf‑LifeStorage: Keep tightly sealed in cool, dry, well‑ventilated warehouse, 5‑35 ℃. Protect from direct sunlight, rain, heat source. Isolate from acids & oxidants
Shelf‑life: 24 months in un‑opened original drum
Standard packing: 200 kg HDPE steel‑plastic drum; 1000 L IBC tote tank
8. Handling & Safety Notes
Industrial mineral‑processing chemical only, not for food, feed, cosmetic use.
Irritant to skin, eyes and respiratory tract. Wear goggles, chemical‑resistant gloves, respirator for mist exposure.
In case skin / eye contact, rinse abundantly with running water for ≥15 min. Seek medical advice if irritation persists.
Do not mix with acidic substances.
Refer to full SDS for GHS hazard statements, transport classification and waste disposal information.
Disclaimer: All figures are typical laboratory reference values, not binding contract specification. End‑user must verify suitability for own process conditions.
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