Barium Petroleum Sulfonate Cas 61790-48-5

Chemical Name:Barium petroleum sulfonate
CAS No.:61790-48-5
Molecular Formula: RSO3Ba
Appearance: translucent, semi-solid or fluid

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Barium Petroleum Sulfonate (CAS 61790-48-5) Overview

Parameter	Specification
CAS Number	61790-48-5
Chemical Formula	RSO3Ba (R=Petroleum-based alkyl group)
Appearance	Brown viscous liquid
Density (20°C)	1.05-1.15 g/cm³
Solubility	Soluble in organic solvents, insoluble in water
pH Value	7.5-9.0 (5% aqueous solution)
Primary Applications	Lubricant additives, rust preventives, metalworking fluids
Packaging	200kg drums or ISO tanks
Storage	Keep in cool, dry area away from oxidizers

Property	Barium Sulfonate	Calcium Sulfonate	Magnesium Sulfonate
Thermal Stability	Excellent (>300°C)	Good (250°C)	Moderate (200°C)
Rust Prevention	Class A (ASTM D665)	Class B	Class C
Acid Neutralization	High TBN (300+ mg KOH/g)	Medium TBN (200-250)	Low TBN (150-200)
Cost Efficiency	$$$	$$	$

Enhances extreme pressure (EP) performance in gear oils (up to 40% improvement in FZG test), reduces wear scar diameter by 25-35% in four-ball tests.

Forms hydrophobic film (0.5-2μm thickness) on metal surfaces, achieving 500+ hours salt spray resistance per ASTM B117 standards.

Improves tool life by 15-20% in machining operations through superior lubricity and thermal stability.

Neutralizes combustion acids (TBN 300+), reduces engine deposits by 60% in 500-hour engine tests.

Applied in marine cylinder oils at 2.5-3.5% concentration, reduced acid corrosion in 2-stroke engines by 78% during 12-month fleet trials.

0.8% addition to copper wire lubricants decreased breakage rates from 12% to 2.3% in high-speed drawing processes.

Parameter	Results
Application	Industrial gear oil formulation
Concentration Used	4.2 wt%
Performance Gain	42% longer oil drain intervals 31% reduction in gear pitting
Annual Consumption	85 metric tons

Parameter	Results
Application	Cold rolling mill lubricant
Implementation	1.8% additive in emulsion system
Outcome	22% reduction in roll wear 15% energy savings
ROI Period	5.2 months

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类别 chem