Potassium Ethylxanthate Cas 140-89-6

Chemical Name: Potassium ethylxanthate
CAS No.: 140-89-6
Molecular Fomula: C3H5KOS2
Molecular weight: 160.3
Appearance: White to light yellow crystal or crystalline powder

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Product Overview
Specifications & Comparative Analysis
Industrial Applications
Operational Guidelines
Case Studies
Contact for Technical Consultation

Potassium Ethylxanthate (CAS 140-89-6) Overview

Parameter	Specification
Chemical Name	Potassium Ethylxanthate
CAS Number	140-89-6
Molecular Formula	C3H5KOS2
Appearance	Pale yellow crystalline powder
Assay	≥90%
Melting Point	220-225°C (dec.)
Solubility	Water-soluble (250g/L at 20°C)
Storage	Keep in cool, dry place below 25°C

Comparative Analysis with Similar Collectors

Property	Ethylxanthate	Isopropylxanthate	Butylxanthate
Collecting Power	Moderate	Strong	Very Strong
Selectivity	High	Medium	Low
Stability	Stable in neutral pH	pH sensitive	Thermally unstable
Optimal pH Range	6.5-10.5	7.0-9.0	8.0-11.5
Price per kg	$5.80	$6.50	$7.20

Key Industrial Applications

Mineral Processing: Primary collector for sulfide ores of copper, lead, zinc, and nickel

Metallurgy: Flotation reagent in copper-molybdenum separation processes

Chemical Manufacturing: Intermediate in rubber accelerators and pesticide production

Analytical Chemistry: Chelating agent for metal ion precipitation

Recommended Operational Parameters

Application	Dosage (g/t)	pH Range	Temperature
Copper Sulfide Ores	50-150	8.0-10.5	15-35°C
Lead-Zinc Separation	80-200	7.5-9.5	20-40°C
Nickel Pyrrhotite	100-300	9.0-11.0	25-45°C

Documented Operational Cases

Case 1: Chilean Copper Mine (2023)
Challenge: Low copper recovery (68%) in oxide-sulfide blend ore
Solution: Ethylxanthate dosage optimization at 120g/t with pH 9.2 control
Result: Recovery increased to 82% with 24% reagent cost reduction

Case 2: Australian Gold Operation (2024)
Challenge: Pyrite depression in flotation circuit
Solution: Stagewise ethylxanthate addition (50g/t primary + 30g/t secondary)
Result: Gold recovery improved from 74% to 87% with stable froth formation

Case 3: South African Pb-Zn Concentrator (2024)
Challenge: Zinc contamination in lead concentrate
Solution: Selective ethylxanthate dosing at 90g/t with modified depressants
Result: Zn content reduced from 8.2% to 3.5% in final Pb concentrate

Technical Consultation & Sample Requests

For customized flotation solutions or product samples:
Email: info@vivalr.com
Tel: (86) 15866781826
Our metallurgists provide:
– Ore-specific reagent testing
– Process optimization studies
– Comparative cost-benefit analysis
– Emergency technical support

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