Ammonium Dibutyl Dithiophosphate

Ammonium Dibutyl Dithiophosphate (CAS 1071-29-0) is a high-selectivity, water-soluble flotation collector and mild frothing agent engineered for sulfide ore beneficiation. It delivers high recovery yields for chalcopyrite ( $\text{CuFeS}_2$ ), galena ( $\text{PbS}$ ), activated sphalerite ( $\text{ZnS}$ ), and precious metals ( $\text{Au/Ag}$ ) while providing exceptional selectivity against iron sulfides (pyrite/pyrrhotite) in neutral to alkaline circuits ( $\text{pH} \ge 8.5$ ).

Purity Grade: $\ge 95.0\%$ Active Content
Physical Form: White to off-white crystalline powder
Typical Dosage: $10\text{–}50\text{ g/tonne}$ (applied as a $1\text{–}5\%$ aqueous solution)
Packaging Options: $25\text{ kg}$ bags, $50\text{ kg}$ drums, or $800\text{–}1000\text{ kg}$ FIBC big bags
Compliance: ISO 9001:2015, REACH registered, UN 2811 Class 6.1 (PG III)

Category: Mining Chemicals

Description
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Ammonium Dibutyl Dithiophosphate (CAS 1071-29-0)

Ammonium Dibutyl Dithiophosphate (Dithiophosphate BA) is a high-selectivity, water-soluble collector and weak frothing agent engineered for sulfide mineral flotation. It drives high recovery yields in chalcopyrite ( $\text{CuFeS}_2$ ), galena ( $\text{PbS}$ ), activated sphalerite ( $\text{ZnS}$ ), and precious metal ( $\text{Au/Ag}$ ) circuits while delivering exceptional rejection of iron sulfides (pyrite and pyrrhotite) at $\text{pH} \ge 8.5$ .

Technical Specifications

Parameter	Standard Specification	Test Method
Appearance	White to off-white powder	Visual Inspection
Active Content	$\ge 95.0\%$	Potentiometric Titration
Free Alkali	$\le 0.2\%$	Acid-Base Titration
Moisture	$\le 1.5\%$	ISO 638
Solubility	Complete (10% aq. sol. @ 20°C)	Visual

Flotation Application & Dosage Dithiophosphate BA chemisorbs onto target metal cations ( $\text{Cu}^{2+}$ , $\text{Pb}^{2+}$ , $\text{Ag}^+$ ) to yield a hydrophobic surface film.

Dosage Rate: $10\text{--}50\text{ g/tonne}$ of dry feed.
Solution Prep: Dilute to a $1\text{--}5\%$ aqueous solution before dosing into conditioning tanks.
Circuit Compatibility: Thrives in alkaline environments ( $\text{pH } 7\text{--}12$ ). Do not mix with concentrated acids to prevent dangerous $\text{H}_2\text{S}$ gas generation.

Packaging & Handling

Configurations: 25 kg woven bags with PE liner, 50 kg steel drums, or 800–1000 kg FIBC big bags.
Transport: UN 2811 | Class 6.1 | PG III. Store in a cool, dry, ventilated area away from heat and acids.

Safety & Compliance

GHS Class: Acute Tox. 4 (H302), Skin Irrit. 2 (H315), Eye Dam. 1 (H318), Aquatic Chronic 2 (H411).
Standards: ISO 9001:2015, ISO 14001:2015, REACH registered. Batch-specific COA provided with shipment.