Chlorinated Paraffin-70 isn’t just a random name in a chemical catalog. This material packs a punch both in terms of its make-up and the way it’s used. One glance at its formula, C24H44Cl26, and you see it’s packed with chlorine atoms. Sometimes you meet it as a flaky solid, sometimes as powder, pearls, or even chunks. The type depends on how it’s processed and what the user wants. Its density floats between 1.6 to 1.7 g/cm³—definitely heavier than water, which means it sinks in most solutions unless you stir and mix with care.
This stuff doesn’t look like anything special in the bag or drum: off-white, maybe pale yellow. But don’t let the mild appearance fool you. Chlorinated Paraffin-70 can behave like a heavyweight inside a PVC plant, as a plasticizer, or wherever you need something flame-retardant or resistant to tough chemicals. People in chemical manufacturing use it because it brings a mix of low volatility and high stability. It doesn’t give off much vapor—the kind of property that keeps the workplace a bit safer from hazardous fumes, compared to other more volatile substances.
Measuring this material isn’t as simple as checking if it’s a powder or solid. Its melting point sits up around 90°C, so it holds its own under heat way past what most plastics can take. Its structure isn’t all that simple—long hydrocarbon chains peppered with chlorine atoms. Those chains mean you’re not just handling a tiny molecule; you’re dealing with something big and bulky at the molecular level. The high chlorine content is what sets the "70" grade apart from other grades—it’s roughly 70% by weight. That heavy load of chlorine makes it good for insulation, fireproofing, and resisting breakdown when other chemicals or the weather would otherwise eat through lesser materials.
HS Code matters a lot if you handle shipping or customs. For Chlorinated Paraffin-70, you look at HS Code 3824909990—important for those bringing it in or out of any country. This number makes sure it gets classified the right way and lands in the right place, tax-wise and regulation-wise. Ignore the code, and the shipment could sit at a port, or worse, get lost in red tape.
Anyone using Chlorinated Paraffin-70 must pay attention. The flakes, powder, and even the so-called pearls have their risks. It doesn’t explode or catch fire easily, which is what people like in a fire retardant. Still, it can be hazardous to your health after long exposure. Regulatory material safety data sheets classify it as harmful, especially if the dust or powder gets stirred up and inhaled. Wash hands after touching it, keep it sealed, and use gloves. Don’t scoop it up like flour in your kitchen; there’s always some risk. Workers need goggles, dust masks, and ventilation, especially during handling and mixing. Spills call for scrubbing, not sweeping, to keep the dust down.
On top of that, Chlorinated Paraffin-70 can harm water systems and aquatic life if it gets outside the plant. The molecular density gives it staying power—and that’s good inside cable sheaths, not good in rivers or lakes. Environmental rules in many countries restrict where and how this chemical can travel. Labs and factories keep strict records for a reason.
I’ve seen Chlorinated Paraffin-70 sold and used in all sorts of forms—sometimes as thick solid crystals, sometimes ground down into a finer powder for blending, other times as soft pearl-like granules. Each form fits a different process. In hot-melt compounding, the flakes melt straight into resins; for spraying or coatings, powder disperses better. Suppliers deliver it in drums, bags, or bulk containers that seal tight against moisture, because this material doesn’t like getting wet.
The product specs matter, not just for compliance but for quality. Chlorine content can’t dip far below or above 70% if the formula is for insulation, otherwise the fire-resistant qualities aren’t reliable. Moisture content stays near 0.5% or less so the material doesn’t clump. Buyers also check saponification value, acid value, and thermal stability. These technical checkpoints protect the raw material quality from batch to batch. If one drum fails, the finished product’s whole safety and performance can drop.
Every batch of Chlorinated Paraffin-70 starts with straight-chain alkanes and chlorine gas. Feedstock quality decides how clean and uniform the final product looks and acts. Most manufacturers run tightly-controlled reactors, keeping byproducts and impurities low. Some less-regulated factories cut corners, using recycled feed or contaminated inputs, which bumps up the risk of unnamed toxins sneaking into the material. That’s bad news for downstream users, especially if the final product ends up in wires, flooring, or other everyday uses. Regular lab analysis and certificates back up a safer supply chain.
No single material gets a free pass—Chlorinated Paraffin-70 included. Researchers have spent years looking for safer alternatives, mostly driven by environmental and worker safety concerns. Bio-based plasticizers and less-chlorinated compounds show promise in some lab trials, but for now, many factories stick with CP-70 because it works and because it costs less than newer options. Plant managers face tough calls, choosing between predictable old recipes and slightly pricier but less risky alternatives. More investment in cleaner technologies, better training, and routine audits will help everyone step into a future where fewer hazardous substances cycle through manufacturing lines.
A better informed buyer makes better choices. Hiding or blurring the true nature and risks of chemicals like Chlorinated Paraffin-70 doesn’t protect workers or communities. Digging into details—HS Code, density, structure, safe storage, and the reality of raw materials—turns paperwork into guardrails that keep people and environments safer. Anyone handling or buying CP-70 owes it to themselves and their team to demand clear product data, proper labeling, and honest safety advice. The risks are real, and the rewards—reliable performance, legal compliance, safer work—are worth chasing with eyes open wide.
