4,4’-Methylene bis(dibutyldithiocarbamate) 10254-57-6

4,4’-Methylene bis(dibutyldithiocarbamate)

CAS No.: 10254-57-6

Whoi is /are mainly and large of Supplier and Manufacturer for 4,4’-Methylene bis(dibutyldithiocarbamate)

It is coming from Hunan SLQ Materials Technology co.,ltd

The original place :China

Jenny@hnjd-tech.com

Synonyms: Methylene dibutyldithiocarbamate, Bis(di-n-butylthiocarbamoylthio)methane, Runlube 8723



1. Physical Properties

- Appearance: Pale yellow to amber transparent liquid

- Molecular formula: C₁₉H₃₈N₂S₄

- Molecular weight: 422.77 g/mol

- Density (25°C): 1.07–1.08 g/cm³

- Refractive index (25°C): n_D²⁵ ≈ 1.511

- Boiling point: 486.7°C (760 mmHg, predicted)

- Flash point: ≥ 248°C (closed cup); ≥ 130°C (COC, industrial grade)

- Kinematic viscosity (100°C): 13.0–17.0 mm²/s (industrial grade)

- Solubility: Insoluble in water (243 μg/L at 20°C); highly soluble in mineral oils, synthetic esters, PAOs, and most organic solvents

- Volatility: Very low; stable at ambient conditions

2. Chemical Properties & Specifications

- Active elements: S 29–32 wt%; N 6.5–7.0 wt%

- Purity (industrial grade): ≥ 95%

- Acid value: ≤ 0.3 mgKOH/g

- Moisture: ≤ 0.1%

- Structure: Ashless dithiocarbamate de
3. General Application Markets

- Lubricant additives: Primary use as multi-functional EP/AW/antioxidant additive in industrial and automotive lubricants

- Metalworking fluids: Cutting oils, rolling fluids, drawing fluids for heavy-duty machining

- Greases: Lithium, calcium, polyurea greases for high-temperature and heavy-load applications

- Fuel additives: Corrosion inhibitor and antioxidant in diesel and heavy fuel oils

- Rubber & plastics: Secondary antioxidant and stabilizer in polymer formulations

4. Lubricant Market Analysis

4.1 Functional Mechanism

- Acts as a multi-functional ashless additive: provides extreme pressure (EP), antiwear (AW), and antioxidant protection in one component

- Under frictional heat and pressure, decomposes to form a durable sulfur-rich protective film on metal surfaces, preventing wear, scuffing, and seizure

- Inhibits oxidation by scavenging free radicals, extending oil drain intervals and equipment life


4.2 Key Performance Advantages

- Ashless: No metal ash after combustion; compatible with exhaust aftertreatment systems (DPF, catalysts)

- Multi-functionality: Combines EP/AW/antioxidant, reducing additive package complexity

- High thermal stability: Performs well in high-temperature gearboxes, compressors, and turbines

- Good compatibility: Synergizes with ZDDP, phenols, amines, dispersants, and rust inhibitors

- Low corrosion: Minimizes attack on yellow metals (copper, brass)

Lubricant Additives

Product features:

Ultra low ash, low phosphorus, low sulfur, and post-treatment protection

Low conductivity, insulation, copper aluminum corrosion resistance, low friction, high speed stability

Sulfur free, ash free, hydrogen embrittlement resistant, high temperature resistant.