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HS Code |
962986 |
| Product Name | Cobalt Chloride Hexahydrate |
| Abbreviation | CoCl2·6H2O |
| Grade | AR (Analytical Reagent) |
| Form | Crystalline solid |
| Color | Pink |
| Molar Mass | 237.93 g/mol |
| Purity | Typically ≥98% |
| Cas Number | 7791-13-1 |
| Solubility In Water | Very soluble |
| Storage Conditions | Store in a cool, dry place |
| Hazard Class | Toxic/Irritant |
| Packaging Size | 100g |
| Melting Point | 86°C (decomposes) |
| Main Use | Chemical analysis, moisture indicators |
| Synonyms | Cobalt(II) chloride hexahydrate |
As an accredited AR Cobalt Chloride Hexahydrate 100g factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | AR Cobalt Chloride Hexahydrate comes in a sealed, labeled 100g amber glass bottle with a secure, chemical-resistant screw cap. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for AR Cobalt Chloride Hexahydrate 100g: Typically accommodates 8,000–10,000 cartons, ensuring safe, moisture-resistant packaging for export. |
| Shipping | Shipping for **AR Cobalt Chloride Hexahydrate 100g** follows chemical handling protocols. The product is securely packaged in a leak-proof, clearly labeled container. It is shipped in compliance with local and international hazardous material regulations. Appropriate documentation and safety data are included. Only authorized carriers and recipients may handle delivery. |
| Storage | Store AR Cobalt Chloride Hexahydrate 100g in a tightly sealed container, away from moisture and incompatible substances. Keep in a cool, dry, well-ventilated area, protected from direct sunlight and sources of heat. Label container clearly and store separately from acids and oxidizing agents. Use secondary containment if possible to prevent spills and ensure compliance with local safety regulations. |
| Shelf Life | AR Cobalt Chloride Hexahydrate typically has a shelf life of 3–5 years when stored in a tightly sealed container, away from moisture. |
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Purity 99%: AR Cobalt Chloride Hexahydrate 100g with 99% purity is used in analytical reagent preparation, where it ensures high assay accuracy and reliability. Molecular Weight 237.93 g/mol: AR Cobalt Chloride Hexahydrate 100g of molecular weight 237.93 g/mol is used in electroplating baths, where it provides uniform cobalt deposition and enhanced coating properties. Solubility in Water 50 g/100 mL: AR Cobalt Chloride Hexahydrate 100g with solubility of 50 g/100 mL is used in chemical synthesis, where it enables rapid reagent dissolution and homogeneous reaction mixtures. Stability Temperature 40°C: AR Cobalt Chloride Hexahydrate 100g stable up to 40°C is used in educational laboratory experiments, where it maintains integrity during controlled heating and experimental procedures. Melting Point 86°C: AR Cobalt Chloride Hexahydrate 100g with a melting point of 86°C is used in thermal decomposition studies, where it allows accurate analysis of phase transitions. Particle Size ≤ 150 μm: AR Cobalt Chloride Hexahydrate 100g with particle size ≤ 150 μm is used in fine chemical manufacturing, where it ensures rapid and complete integration into reaction systems. Trace Metal Content <0.1%: AR Cobalt Chloride Hexahydrate 100g with trace metal content below 0.1% is used in spectroscopy applications, where it minimizes interference and improves detection sensitivity. Hydration State Hexahydrate: AR Cobalt Chloride Hexahydrate 100g in hexahydrate form is used for humidity indicator formulations, where it provides clear colorimetric response to moisture. Packaging Sealed Amber Bottle: AR Cobalt Chloride Hexahydrate 100g packaged in a sealed amber bottle is used in long-term storage applications, where it protects the product from light and moisture degradation. |
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Every batch of AR Cobalt Chloride Hexahydrate starts with carefully selected raw cobalt and hydrochloric acid. We take this through a series of precisely controlled steps, ending with crystals that carry six molecules of water. These deep pink crystals, often a familiar sight in quality control labs, aren’t just the product of chemistry textbook formulas — they reflect a commitment to daily rigour, consistent technique, and clean workspaces. Anyone working in chemical synthesis knows that the hydrated form of cobalt chloride signals exacting attention during manufacture. We rely on tight water content controls and steady temperatures, knowing any drift leads to impurities or incomplete reactions.
In the chemical business, AR grade isn’t simply a label. It’s shorthand for a host of daily decisions involving filtration, washing, and temperature control. After working with less refined batches in my early years, I learned quickly what causes contaminants to sneak in — fouled glassware, insufficiently rinsed filters, ambient humidity creeping over acceptable margins. Laboratory analysts count on predictability. So, everyone here signs off on each step, and we reject any batch that doesn’t meet our stated purity targets. We measure for nickel and iron, conscious of their ability to throw off results for researchers or disrupt colorimetric analyses.
Talking to the end users — chemists, researchers, teachers — you hear the same themes: clarity, reactivity, and reproducibility. Cobalt chloride hexahydrate acts as a classic moisture indicator; labs use these pink crystals in humidity detectors and to calibrate hygrometric systems. Whenever someone asks why they’d bother buying AR grade rather than technical or industrial, it always comes back to certainty. The better your starting chemicals, the smaller your error bars. Even beyond moisture detection, this compound finds roles in complexometric titrations, organometallic syntheses, and as a precursor for pigment or catalyst research.
Some years ago, clients told us our AR Cobalt Chloride Hexahydrate made their calibration results “less fussy.” It’s not marketing hype — this came from technicians running side-by-side tests with technical grade. The difference begins in the raw feedstock and only ends after repeated crystallization, drying, and reweighing. We watch for batch-to-batch color, granule size, and solubility in water. Impurities can make the color muddy or shift the melting point. A 100g bottle from us delivers material with clarity and consistent moisture content every time, which matters to anyone logging data or conducting comparative work.
No one in manufacturing likes to talk about production hiccups, but they teach more than smooth runs. A shipment of low-grade hydrochloric acid once led to an entire day lost, as our purification step couldn’t keep up with chloride content outside spec. The routine checks — weighing, stirring, drying under vacuum — sometimes give us blisters and frayed nerves, but they are key for finished product you can trust. Storage also plays a big role. Cobalt chloride hexahydrate loves water, and even a briefly unsealed container can pick up extra weight overnight. Rigid discipline in sealing and labeling goes beyond paperwork; it affects downstream reliability for researchers.
Working with cobalt compounds day in and day out has shaped our mindset towards personal and environmental safety. Early protocols focused only on gloves and goggles. Much has changed, driven by tighter regulations and our own daily vigilance. Our team always keeps an eye on proper ventilation, careful waste handling, and clear instructions for spill management — not just for compliance, but to protect both production staff and the neighborhoods around us. AR grade places extra demand for uncontaminated product, which in turn ensures cleaner workflows and fewer disposal headaches.
Users sometimes wonder what makes AR grade cobalt chloride hexahydrate distinct from technical or industrial grades, especially since the color or appearance might seem similar to the untrained eye. Anyone running careful research discovers the difference quickly. Technical grade often brings along unwanted ions, leftover from less rigorous washing or using less pure starting materials. These contaminants impact reactions, generate side products, or hinder reliable detection in moisture tests. The end result: duplicate runs, wasted time, and extra costs. Our AR-grade batches go through more cycles of crystallization, filtration, and drying to reduce these pesky byproducts.
Most of our customers ask for 100g bottles — not an accident, but the outcome of many years watching how this substance gets used. Larger scale industrial operations easily consume more, but academic and quality control labs value handling ease, minimal waste, and the freshest possible product. Open containers too long, and the hydrate can gain or lose water, changing mass and skewing results. We keep the packaging tight, bottles robust and easy to reseal, because we’ve seen labs lose entire trials to poorly packaged chemicals from bulk drums or sub-divided containers.
Academic labs have pushed us to pay closer attention to how students handle reagents. Many classes demonstrate cobalt chloride’s dramatic color change with humidity as a practical demonstration of chemical principles. This only works when the sample behaves as promised — pink in moist air, blue when dried. Substandard cobalt chloride often fails these basic tests, disappointing teachers and learners alike. Our job goes beyond supplying a chemical; it’s about reinforcing trust between experiment and outcome. Over the long run, attentive production supports education as much as research.
Reproducibility underpins scientific and industrial progress. Chemists developing new methods or validating existing ones depend on reagents that don’t throw in unexpected elements. Quality assurance departments expect their standards to align with reference data. That’s where AR-grade cobalt chloride has made its mark for decades. By consistently hitting high purity levels and well-defined hydrate content, we help teams move forward faster, confidently publishing results, filing patents, or unveiling new products. Our process upgrades and ongoing investment in analytical equipment reflect this commitment to progress.
Over dozens of plant audits and technical support calls, end users have offered insights we never would have caught on our own. Sometimes it’s a tiny speck of insoluble matter that clogs a pipette, or a minor labeling mix-up that causes confusion. We meet regularly with research scientists, teachers, and quality control managers to collect feedback, using it to adjust our batches, change our packaging, or rewrite instructions for clarity. This feedback loop drives continuous improvement more effectively than any internal checklist could.
Like every chemical maker, we adapt to evolving regulatory pressures. Cobalt’s strategic value has drawn attention from sourcing to environmental reporting, so we maintain detailed traceability of our raw metals and closely monitor waste streams. Sourcing secure, high-quality cobalt ore poses ongoing challenges, as does keeping our process documentation ready for audit. We’ve invested heavily in purification routines and staff training, both to meet requirements and to keep production rolling as global demand shifts.
Every time we prepare a shipment of AR Cobalt Chloride Hexahydrate, thorough documentation follows. This isn’t a legal checkbox; customers want to see batch records, spectral data, and impurity assays. We run ICP analysis on each lot to guarantee low iron, nickel, and other transition metals, knowing their subtle effects on research. Many labs have told us that having this supporting data at hand makes their approvals easier and speeds up compliance in regulated sectors. Our technical staff updates documentation and shares it freely, answering questions directly from users and helping to troubleshoot unexpected results.
Anyone who has run long-term trials recognizes inconsistencies in chemical lots can undermine months of work. That’s why we build robust batch tracking into production — labeling, logging, archiving, and retesting reference samples from past lots. This lets us resolve questions quickly if a customer wonders about a subtle shift in color or solubility between bottles. Our own lab team uses the same product in internal QC, so any drift in quality shows up quickly. We tweak routines as needed, tightening washes, or slowing drying where it benefits end consistency. Experience teaches that even small improvements protect both our reputation and your bottom line.
Many of our operators have grown into their jobs over a decade or more. Training here focuses on the “why” behind every step: why stirring speed matters, why you notice smallest drifts in color, why handling open bottles in humid weather can ruin a day’s work. By grounding staff in the real-world impact of their actions on quality, not just rote process, we keep everyone invested in the outcome. Our most reliable batches come from teams who communicate, correct quickly, and think ahead about potential sources of error.
Producing AR grade cobalt chloride places continual demands on energy and water usage. We’ve adopted closed-loop water systems, solvent recovery, and improved ventilation to reduce waste and improve efficiency. Reliable suppliers and internal audits help keep our tracking robust. For future improvements, we’re exploring alternative packaging to lower plastic usage and refining crystal growth to improve yield while reducing process water use. The evolution of chemical manufacturing won’t pause, and ongoing feedback from users, partners, and our team will direct our next steps.
The value in each 100g bottle of AR Cobalt Chloride Hexahydrate comes from every minute spent in process, the vigilance of each shift, and our willingness to answer for every batch. We offer more than just a chemical; we deliver the clarity, traceability, and reliability that professionals need. By explaining our process, risks, and improvements openly, we aim to maintain and deepen trust in every interaction. In our experience, this openness drives both better chemistry and better partnerships.
Fifty years in chemical production have shown us that every complaint or compliment points the way to improvements. Customer questions about a faint blue tinge in a batch of cobalt chloride sent us back to the drawing board, revealing a microscopic contamination in the rinse water line. Satisfaction, for us, isn’t a slogan — it’s a daily contract, honored by paying attention and acting on what we learn, always with the goal to deliver consistently high-quality AR Cobalt Chloride Hexahydrate in every bottle that leaves our facility.