Understanding Calcium Oxide CAS No: A Global Essential
If you've ever dealt with industrial materials or followed environmental products, chances are you've come across calcium oxide CAS No. But what is this compound really, and why does it matter so much on a global scale? Think of it as a foundational player in industries ranging from steelmaking to water treatment, and even agriculture. Understanding calcium oxide, often known by its chemical label 'quicklime,' provides insight into how a simple mineral ingredient can power huge sectors, shaping everything from infrastructure to sustainability efforts worldwide.
Global Context: Why Calcium Oxide CAS No Matters
Globally, calcium oxide production hovers around tens of millions of metric tons annually, according to ISO data. It's a cornerstone material especially in developing economies where steel and cement industries are booming. However, its environmental impact is under scrutiny — from CO2 emissions during calcination to the need for greener alternatives. Countries grapple with the challenge of balancing industrial growth and sustainability, where calcium oxide has to fit in smartly.
Oddly enough, the versatility of calcium oxide has led to its adoption in humanitarian efforts too — soil stabilization for temporary refugee shelters, or water purification in disaster zones. So it’s not just about factories; it’s a quietly essential global problem solver.
What Is Calcium Oxide CAS No? Breaking Down the Basics
In simple terms, calcium oxide (chemical formula CaO) is a white, caustic, crystalline solid at room temperature. The CAS Registry Number (CAS No) is a unique numerical identifier assigned to it — ours is commonly 1305-78-8 — which acts like a fingerprint, letting chemists and procurement teams be certain they're referring to exactly the same substance. This avoids confusion with similar compounds like calcium hydroxide or calcium carbonate.
Calcium oxide is mainly produced by heating limestone to high temperatures in kilns, a process known as calcination, releasing CO2 in the process. This simple yet transformative reaction explains its pivotal role in manufacturing and environmental chemistry. It’s the unsung hero behind steel purification, whitewash paints, and neutralizing acidic soils.
Core Components & Key Factors Behind Its Use
1. Reactivity and Purity
The effectiveness of calcium oxide relies heavily on its purity. Higher-grade quicklime (usually over 90% CaO) reacts predictably and cleansly, crucial for use in sensitive chemical processes or water treatment plants. Lower purity lime might be fine for soil stabilization but less reliable elsewhere.
2. Particle Size and Formulation
Finely powdered calcium oxide reacts faster, a fact many engineers appreciate for accelerated curing times. But bulky, lump form may be preferred for slower, controlled reactions in construction. Oddly enough, the choice often balances immediate efficiency versus ease of handling.
3. Thermal Stability
Calcium oxide can withstand high temperatures, making it essential in refractory materials lining furnaces and kilns. This comes with a cost though: managing heat stress and potential degradation over time.
4. Environmental Impact
Given the CO2 footprint in production, many companies are exploring greener production methods or using calcium oxide captured from industrial by-products. This flips the old narrative, turning a liability into an environmental asset.
Typical Specifications for Industrial Calcium Oxide
| Property | Typical Value | Unit |
|---|---|---|
| Calcium Oxide (CaO) Content | ≥ 90 | % |
| Loss on Ignition | ≤ 2.0 | % |
| Particle Size (passing 200 mesh) | 75 – 95 | % |
| Magnesium Oxide (MgO) Content | ≤ 3 | % |
| Moisture Content | ≤ 1.0 | % |
Mini takeaway: If you’re sourcing calcium oxide, checking these specs is a must — otherwise you might end up with a product that doesn't quite cut it.
Global Applications and Real-World Use Cases
- Steel Manufacturing: Calcium oxide removes impurities like sulfur and phosphorus.
- Cement Industry: Quicklime is essential in clinker production.
- Environmental Cleanup: Neutralizing acidic soils and water bodies after industrial spills.
- Water Treatment: Used by municipalities worldwide to soften water and remove contaminants.
- Agriculture: Adjusting soil pH levels to maximize crop yield.
For example, post-tsunami reconstruction in Southeast Asia relied heavily on lime-based soil stabilization to rebuild roads, while Scandinavian countries have incorporated calcium oxide in advanced CO2 capture systems. Oddly enough, it’s a material that quietly adapts to so many settings.
Vendor Comparison: Top Suppliers of Calcium Oxide CAS No
| Supplier | Purity (%) | Available Forms | Price Range (USD/ton) | Lead Time |
|---|---|---|---|---|
| Baifeng Mining | ≥ 92 | Powder, Lump | $150 - $180 | 2-3 weeks |
| GlobalLime Inc. | ≥ 90 | Powder | $160 - $190 | 3-4 weeks |
| LimeCo Supplies | ≥ 91.5 | Lump, Powder | $155 - $175 | 1-2 weeks |
Long-Term Benefits of Using Quality Calcium Oxide
When you source high-purity calcium oxide, the payoffs are substantial: improved product consistency, enhanced process efficiencies, and fewer environmental risks. On a social level, safer drinking water and stabilized agricultural soils deliver a sense of security for communities, not to mention the goodwill towards manufacturers who care about sustainability.
It feels like the material is quietly behind the scenes, enabling innovation without shouting about it—doing its job with steadfast reliability. Whether you’re in heavy industry or municipal infrastructure, calcium oxide’s value is both tangible and long-lasting.
The Road Ahead: Innovations and Trends
Frankly, mining and producing calcium oxide face challenges: emission regulations, resource depletion, and the demand for greener processes. However, emerging technologies like designing calcium oxide CAS No with enhanced purity, carbon capture integration, and waste-minimization methods are making a big difference.
We’re starting to see lime-based materials paired with digital process controls and automation to enhance quality and reduce waste. Meanwhile, alternative feedstocks and renewable energy-powered kilns hint at a more sustainable future for this humble yet vital compound.
Common Challenges and How to Address Them
A big challenge is balancing the environmental footprint—CO2 emissions during production are an unavoidable downside. To tackle this, companies invest in carbon capture tech and recycle lime-based waste wherever feasible. Moreover, contamination or inconsistent particle sizes mean suppliers must maintain strict quality control.
Customers need to insist on well-documented CAS numbers and test certificates to avoid messy supply interruptions. After all, you don’t want your critical batch failing because someone mixed up calcium oxide cas no with hydrated lime.
FAQ: Practical Questions About Calcium Oxide CAS No
Q1: How do I verify the quality of calcium oxide CAS No before purchase?
Always ask for a Certificate of Analysis (CoA) from the supplier, verifying calcium oxide content, moisture, and particle size. Checking the exact CAS number (usually 1305-78-8) ensures you’re receiving the right chemical. If possible, request a sample for your own testing before committing.
Q2: Is calcium oxide CAS No safe to handle in industrial environments?
Calcium oxide is caustic and can cause skin and eye irritation. Proper PPE like gloves, goggles, and dust masks are mandatory. That said, with adequate training and ventilation, it’s widely handled safely in various industries.
Q3: Can calcium oxide CAS No be used in water treatment for drinking water?
Yes, it’s regularly used to soften water and neutralize acidity. However, the quality must meet strict purity standards to avoid introducing heavy metals or other contaminants. Municipalities usually follow specific regulatory guidelines before adopting it.
Q4: How long does calcium oxide last in storage?
When stored in airtight, moisture-free conditions, calcium oxide can retain quality for months, sometimes over a year. Exposure to moisture causes it to hydrate and degrade, so sealed containers or silos are best.
Q5: How can international buyers import calcium oxide CAS No easily?
Work with suppliers experienced in export documentation and logistics. Ensuring the CAS number and purity match buyer standards avoids customs holdups. Reputable suppliers, like those listed previously, offer support for smooth cross-border transactions.
Conclusion: Why Knowing Your Calcium Oxide CAS No Pays Off
Calcium oxide CAS No is more than just a chemical identifier — it represents the gateway to sourcing, quality control, and confidence in a material integral to industry and the planet’s wellbeing. Whether steelmaking, water purification, or soil stabilization, this compound's reliable performance makes it a foundational tool in shaping a sustainable future.
If you’re curious to dive deeper or get a quote, I suggest checking out Baifeng Mining’s offerings — they have a reputation for quality and consistency that many industrial buyers appreciate.
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