|
HS Code |
107305 |
| Product Name | Ultra Pure Carbon Black |
| Appearance | Fine black powder |
| Purity | 99.9% |
| Particle Size | 10-50 nm |
| Surface Area | 400 m²/g |
| Ash Content | <0.1% |
| Volatile Matter | <0.5% |
| Ph Value | 6-8 |
| Oil Absorption | 120 ml/100g |
| Moisture Content | <0.2% |
| Density | 1.8 g/cm³ |
| Conductivity | High electrical conductivity |
| Solubility | Insoluble in water |
| Color Strength | High |
| Toxicity | Non-toxic |
As an accredited Ultra Pure Carbon Black factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Ultra Pure Carbon Black is packaged in a sturdy 25 kg brown kraft paper bag with bold black labeling and safety instructions. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Ultra Pure Carbon Black is packed in 10kg bags, 2,000 bags (20MT) per 20-foot container. |
| Shipping | **Ultra Pure Carbon Black** is shipped in sealed, moisture-proof, multi-layered bags or fiber drums to prevent contamination and moisture absorption. Packages are clearly labeled in compliance with safety regulations. During transport, keep containers upright, secure, and protected from physical damage, heat, and ignition sources. Store in a cool, dry, well-ventilated area. |
| Storage | Ultra Pure Carbon Black should be stored in a cool, dry, well-ventilated area away from sources of ignition and strong oxidizing agents. Keep the containers tightly closed and secure to prevent moisture absorption and contamination. Store away from food, feed, and incompatible materials. Use non-sparking tools and ensure proper labeling to maintain product integrity and ensure safe handling. |
| Shelf Life | Ultra Pure Carbon Black typically has an indefinite shelf life if stored in tightly sealed containers under cool, dry conditions, away from contaminants. |
Competitive Ultra Pure Carbon Black prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: sales3@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Talking about ultra pure carbon black, we’re sharing lessons drawn from years behind production lines, not a catalog. Our model Ultra Pure Carbon Black isn’t just another grade rolled off the assembly belt—it came from field trials, headaches over contaminants, and direct talks with rubber, plastics, and electronics manufacturers who spelled out exactly what held their processes back: impurities, unpredictable performance, color inconsistencies, trouble in sensitive systems, and more than a few filter clogs that shouldn’t have happened.
Competing on purity means earning trust. Our Ultra Pure Carbon Black relies on a closed oil furnace feedstock combined with proprietary filtration steps. Every batch undergoes direct elemental analysis for ash, heavy metals, and sulfur traces. Ash content consistently stays below 0.01 percent, and we hold total polycyclic aromatic hydrocarbons to a fraction of the limits set by global food and medical packaging regulations. Science makes this possible, but dedication turns it into predictable output year after year.
Customers soaking up ink, wire coating, advanced catalysts, and high-end compounding need more than a black pigment—they need absolute clarity on what goes into their product, and exactly what stays out. Ordinary carbon blacks contain trace metals, sulfur, and grit from less refined feedstocks or open production. Those impurities result in higher electrical resistance, unwanted migration in films, forced process shutdowns, and even product recall risks when trace contaminants creep above threshold. Our approach produced a carbon black free from these wildcards.
Silicon chip packaging found surface residues clogged lines in the past, leading to yield loss and higher cleaning costs. Our ultra pure model offers electrical conductivity repeatable to two decimal places, and customers in antistatic applications rely on that order of precision. Medical rubber processors run our powder in stoppers and gaskets, slim odds for migration or leaching beyond certified trace limits—so measured in finished product, not just at the drum.
Instead of relying on marketing numbers, we watch what matters: structure, surface area, and actual residue on ignition. Our surface area measurement (BET method) consistently targets 50–100 m2/g, depending on grade, optimizing cost for volume buyers without sacrificing jetness in thinner films. Oil absorption checks fall within 65–80 ml/100g, meeting extrusion benchmarks for black masterbatch makers. Surface chemistry, not just color intensity, wins us contracts for food contact sheets and specialty elastomers, and we keep volatile residue concerns at bay through repeated vacuum drying cycles and strict batch traceability.
Granular and powder forms both come off our lines, depending on what downstream process dictates. Plastics makers ask for high flow, so we designed an easy-feed granule for automated handling systems. Powder serves ink and toner houses, built to disperse quickly in low-shear mixes. From automotive coatings to high-sensitivity lithium battery cells, every format endures multiple QC gates.
Years spent working with production supervisors, research chemists, and maintenance engineers taught us that one overlooked contaminant ruins days of work and damages equipment. A trace of sodium or iron where it doesn’t belong kickstarts new calibration routines and headaches for process teams. Our Ultra Pure Carbon Black goes through multi-step thermal and chemical wash treatments, stripping out ionic impurities that provoke unwanted reactions in UV-sensitive or conductive plastics.
Dry-milling stages keep particle size distribution tight, so batch-to-batch results never surprise laboratory analysts. Several compounders reported reduced filter change frequency after switching to our grade, and in thin-section extrusions, films run smoother, without black specks or gels. Every ton running clean reduces waste, trims production cycle times, and frees up laboratory and maintenance teams for deeper R&D, not just troubleshooting.
Battery cell manufacturers depend on us to keep metals like nickel and copper at levels low enough to never interfere with electrochemical reaction rates. The feedback loop runs continuously: we analyze, publish, and cross-check analytical reports with every outgoing lot, because the cost of unchecked impurity often dwarfs any saving from cheaper, dirtier alternatives.
Impurities buried in carbon black don’t always stay trapped; they move upstream and show up as defects in everything from kitchen appliance gaskets to pharmaceutical vials. We saw early on how surface chemistry determines leaching rates under heat and pressure. Our process focuses on neutralizing surface acidity, tightening pH drift, and minimizing residual solvent carryover. After all, nobody wants to face a recall because of trace migration or an outlier test result in a regulatory audit.
In color-critical uses, like automotive coatings or LED housings, consistency remains a differentiator. Shade, undertone, and dispersion quality hang on minute adjustments in material structure, not on superficial brightness numbers. Our technical analysts work regularly with customer labs to dial in settings and document color performance with each incoming batch.
We know production never stands still. Every fresh project asks for something tighter—new purity markers, finer particle ranges, new residual testing. Chemists from global medical device firms brought us samples showing pigment migration that slipped through standard screening; their root cause pointed to trace volatiles in the carbon black. This feedback led us to install direct in-line sensors, allowing real-time monitoring for every production cycle, not just a QC sample.
Electronics clients flagged micro contamination as a chronic yield-loss factor, so we re-engineered our filtration steps, using both ceramic and carbon capture beds. Maintenance logs kept showing that filter life in masterbatch shops kept improving after the switch. In the world of drinking water treatment filters, regulatory scrutiny increases every cycle. Carbon black purity and documented traceability can sway certification decisions and open new product markets.
International buyers compare not just what’s claimed but what holds up under their lab instruments. We designed Ultra Pure Carbon Black for transparency—batch test results ship with every load. Auditors often visit our lines, tracing everything from incoming raw oil to packaged drum. If we miss a spec, customers hold us accountable, and we track corrective actions in process, not at the end.
Staff training focuses on continuous improvement. Tracking and reporting aren’t just for compliance, they’re part of the manufacturing culture here. Our teams document every production adjustment, and regular skill cross-training keeps technicians fluent in both legacy and new analytical methods. That science foundation underpins the promises made by our commercial team.
Food packaging, potable water, electronics, and pharma industries set strict limits for extractables, heavy metals, PAHs, and volatiles. We maintain regular dialogue with compliance testing labs worldwide, updating our purification steps at every regulatory shift. Every outgoing lot undergoes REACH, RoHS, and FDA-conformant screens for critical extractables and migration, because one failed test in a customer’s market can cost years of lost trust. Ongoing process upgrades have significantly reduced our VOC footprint, and we produce more carbon black per unit energy in the plant compared to a decade ago—backed by internal energy audits and published emission figures.
Production lines don’t tolerate downtime. Processing interruptions taught us early that dust, fines, or unplanned agglomerates slow everything down, especially automation-heavy masterbatch and ink operations. Our blending, sieving, and pre-processing steps aim to eliminate sticky batches, fines, or irregular granules. Customers called out loading hoppers that jammed with off-brand carbon blacks. By tightening moisture specs and storage protocols, we reduced caking and dusting to levels that warehouse staff can handle with standard equipment.
Surface functionality isn’t just a buzzword here; we run side-by-side dispersibility trials using customer base resins and solvents. One paint plant in Europe slashed its mill time by a third with our ultra pure grade, saving on energy and reducing worker exposure to high-shear dispersing agents. These kinds of savings quietly drive loyalty, especially in markets where overseas quality varies, logistics costs spike, or local regulations grow tougher.
Research teams rely on full disclosure for published results. We provide detailed COAs with elemental breakdowns, pH, surface oxygen, volatile content, and morphology data for each batch—no summaries, just complete analysis. This transparency builds scientific credibility, allowing labs to document conformance in regulated studies for new medical or food-contact products. Our history with universities and corporate research centers underpins many successful formulation and scale-up initiatives, as researchers need consistent input to fine-tune high-value systems reliably.
On the factory floor, we maintain feedback loops on real performance data, troubleshooting unique problems on-site, and using findings to improve future runs. This back-and-forth relationship with even our largest customers often points to incremental production improvements that can have downstream consequences, such as lowering total cost per kilogram or improving asset uptime.
Comparing high-purity models to commodity or off-brand carbon blacks brings differences into focus. Entry-level grades may cost less, but unfiltered trace metals, inconsistent pH, variable moisture, and unpredictable surface chemistry drive up total costs once process interruptions, product returns, and regulatory delays mount up. After several large customers shared filter screen photographs blackened by particle clusters, we completely overhauled our milling and cleaning steps.
Engineers in medical tubing, fuel systems, or clean electronics production all point to simple numbers—fewer line stops, steadier color, faster dispersal, and sharper electrical properties. Increasingly, new product launches hinge on unwavering secondary analytical support. So we invest in both laboratory and process automation, marrying old-school hands-on testing with state-of-the-art feedback systems.
Modern manufacturing calls for environmental stewardship and transparent source control. We set up a closed-loop water recycling system, minimizing effluent, and switched to certified renewable electricity streams across our major plants. Internal audits track carbon emissions and resource consumption, with an ongoing commitment to reduce our embodied carbon footprint for every metric ton produced. Suppliers face similar scrutiny, with regular documentation checks on their compliance [audits] and feedstock traceability from point of origin.
Companies in food contact, medical, and electronics spaces ask for source documentation as part of broader ESG scoring—from responsible workplace culture to transparent supplier training. We support these requests by sharing not just product-level test results, but expanded sustainability reports on annual progress. Our purchasing team works closely with feedstock suppliers to ban any inputs from problematic or poorly documented origins, maintaining a clean chain from raw material to packaged ton.
Shop teams often want straight talk and real fixes, not theory. We invest in field engineers who step in during installation, troubleshoot running lines, and remain on call for post-sale support. Reports mean little unless they match real production behavior—a lesson taught by many ramp-up periods across industries. After-action studies feed directly into quality meetings, and feedback leads to process tweaks within days, rather than months of delay. Bridging laboratory detail and plant experience helps scale best practices across plants.
We invite customer teams to audit production and review test labs in person, bringing raw data and operations into full view. Protecting quality is not a handshake agreement; it rests on open labs, round-robin testing, and ongoing discussion about performance targets under realistic usage, not just ideal conditions.
New frontiers keep pushing demands for higher clarity, finer size, and tighter contaminant controls. Advanced energy storage systems, cutting-edge drug packaging, and premium pigment markets push our own R&D every year. Our process engineers constantly evaluate new feedstocks, checking for even cleaner performance, and update filtration and drying equipment as thresholds evolve.
The world of ultra pure materials only gets bigger as end-uses get smarter and regulations grow tougher. The lessons we build into every ton—or every batch, if you buy small—rest on hard-won experience and a willingness to solve real problems in the field.