Environmental Protection Liquid Paraffin C18 To C21 Alkanes

Product Overview

This Liquid Paraffin features a precise carbon chain distribution (C18–C21) with ≥92% paraffin content and ≤0.1% aromatic compounds, ensuring minimal environmental impact . Produced through hydrotreating of petroleum fractions, it boasts a flash point ≥160°C for enhanced safety and a biodegradation rate of ≥90% under OECD 301 standards. Its water-white appearance and low volatility make it ideal for applications requiring both performance and environmental compliance .

Product Features

High Thermal Stability

With a distillation range of 320–370°C, it remains stable in high-temperature processes, outperforming shorter-chain alkanes in heat resistance. This makes it suitable for metalworking fluids and high-temperature release agents .

Low Toxicity Profile

Free from heavy metals, VOCs, and polycyclic aromatic hydrocarbons (PAHs), it meets EU REACH and FDA criteria for food-contact materials. Its LD50 >5000 mg/kg confirms acute toxicity safety .

Controlled Fluidity

Maintaining liquid state at room temperature with viscosity of 8–12 cSt @40°C, it ensures easy handling in pumping systems while providing sufficient film-forming properties for coatings and lubricants .

Product Applications

Industrial Lubricants

In metal stamping and cold forging, it acts as a bio-based lubricant additive, reducing tool wear by 30% while biodegrading harmlessly in wastewater streams. It performs well in both aqueous and neat formulations .

Sustainable Packaging Coatings

Applied as a barrier layer in paperboard packaging, it enhances water resistance while complying with EU 10/2011 food contact regulations. It reduces moisture transmission rate by 65% compared to uncoated paper .

Agricultural Formulations

As an adjuvant in pesticide formulations, it improves spray retention on leaf surfaces, increasing efficacy by 20% while breaking down into harmless hydrocarbons within 60 days in soil .

FAQ

Is this wax compliant with global eco-standards?

Yes, it meets EU Ecolabel criteria, REACH SVHC requirements, and FDA 21 CFR 178.3570 for food-contact applications .

What is its carbon chain distribution?

It consists primarily of C18 to C21 alkanes, balancing stability and biodegradability for industrial and agricultural use .

How does it perform in high-temperature applications?

Its ≥160°C flash point and broad distillation range ensure safe operation in metalworking and coating processes up to 150°C .

More Stable Room-Temperature Fluidity: With carbon chains concentrated in the C18-C21 range, the molecular weight difference is small, resulting in a lower and narrower freezing point range. It is less likely to solidify in low-temperature environments (such as outdoor winter conditions or refrigeration processes) and has better fluidity than liquid waxes containing C22. It can maintain pumping or spreading performance without additional heating, making it particularly suitable for applications in cold regions. The viscosity is more uniform; since it does not contain the slightly heavier C22 components, the viscosity fluctuation range is smaller, ensuring consistent product performance (e.g., the oil film thickness of lubricants, the stability of skin feel in cosmetics).

Optimized Balance Between Volatility and Flash Point: With moderately long carbon chains, it features "low but not extremely low volatility," making it more applicable in scenarios requiring "slow release" or "controllable loss." For example, as a sustained-release lubricant, it will not volatilize and fail quickly, nor will it cause cleaning difficulties due to excessive residue. Due to its slightly lower viscosity, it offers more convenient fluidity during operation, reducing the risk of local heat accumulation in high-temperature environments.

Excellent Chemical Stability and Controllable Reactivity: The molecules are saturated straight-chain alkanes, containing only C-C single bonds and C-H single bonds, with strong oxidation and hydrolysis resistance. They are not prone to chain scission or oxidative deterioration in medium-temperature environments of 150-200°C, making them suitable for long-term cyclic use (e.g., as base oils for hydraulic oils and heat transfer oils). Due to the highly concentrated carbon chain distribution, when used as a chemical raw material, it has higher reaction selectivity. For instance, when oxidized to produce fatty acids, the products are mainly C18-C21 fatty acids, with very few by-products (such as short-chain or ultra-long-chain impurities). The subsequent purification cost is low, and they can be directly used in the synthesis of high-end surfactants (e.g., C18 stearic acid, C20 arachidic acid).

Wider Material Compatibility: It has lower swelling effects on plastics (e.g., PET, ABS) and elastomers (e.g., silica gel). Compared with liquid waxes containing C22, C18-C21 Liquid Paraffin molecules are slightly smaller in size, and their interaction with polymer materials is milder, making them suitable for contact with precision plastic components (e.g., electronic device connectors, medical device housings). It is non-corrosive to metals and has better compatibility with additives (e.g., anti-wear agents, antioxidants), allowing flexible formulation of composite recipes (e.g., high-end lubricants, metalworking fluids) without easy occurrence of stratification or precipitation.

Industrial Lubrication and Precision Manufacturing: As a medium-load precision lubricant, it has moderate and stable viscosity, which can form a uniform oil film on the surface of high-speed rotating precision components (e.g., machine tool spindles, gearboxes). While reducing friction loss, it avoids "seizure" or "leakage" caused by viscosity fluctuations, making it particularly suitable for equipment with extremely high precision requirements (e.g., semiconductor manufacturing equipment, optical instruments). In the field of metal processing: in processes such as cold rolling and stretching, its low volatility can reduce oil mist during processing, and due to its good fluidity, it can quickly cover the metal surface, resulting in more uniform cooling and lubrication effects and reducing the risk of scratches on the workpiece surface.

Fine Chemicals and High-End Daily Chemicals: It is an ideal raw material for synthesizing high-carbon alcohols. When C18-C21 straight-chain alkanes are hydrogenated to fatty alcohols (e.g., stearyl alcohol C18, arachidyl alcohol C20), due to the concentrated carbon chain, the product purity can reach over 95%, which can be directly used as emulsifiers or thickeners in high-end cosmetics (e.g., lipsticks, eye creams), ensuring fine skin feel and high stability of the products. As a modifier for candles or hot-melt adhesives, adding it to paraffin can reduce the overall freezing point while maintaining hardness, making candles burn without smoke or peculiar smell, and hot-melt adhesives can cure at a slightly lower temperature, reducing thermal damage to sensitive substrates (e.g., paper, fabrics).

Adaptability to Environmental Protection and Special Fields: It has low volatility, resulting in low VOC emissions, and due to its relatively short carbon chain, its biodegradation rate is slightly faster. When used as a pesticide carrier in the agricultural field, it can not only reduce pesticide loss due to volatilization but also be decomposed by soil microorganisms more quickly after use, reducing the risk of long-term residue. In the energy storage field: it can be used as the base material for phase change energy storage materials (the phase change temperature of C18-C21 is about 20-30°C), suitable for energy storage near room temperature (e.g., building insulation, electronic device heat dissipation). It has small volume change and high stability during phase change, with a long cycle service life.