Quick Lime (Calcium Oxide)
Quick Lime (Calcium Oxide)
What is Quick lime (Calcium Oxide, CaO)? 🧪
Quick Lime or Calcium Oxide (CaO) is a white and light-grey inorganic substance. It's obtained from Calcium carbonate (limestone, CaCO₃) is burned at high temperatures in the process of calcination for taking the CO₂ out and becoming CaO, which is highly alkaline and exothermic by transformation into Calcium Hydroxide, Ca(OH)₂ or also known as slaked lime
The key physical features of Cao that are related to industry include the following: Density ~3.3–3.34 g/cm³, high melting point (>2,600 °C) and strong alkalinity (the pH of the solution formed from its reaction with water is around 12), and it is also sensitive to moisture and carbon dioxide in the air.
Benefits and Industrial Applications 🏭
1) Steel and Metallurgical Industry
Quicklime is used as a flux to remove impurities (such as sulfur and silica) in furnaces or in the BOF process. It helps form a basic slag that captures and removes contaminants. Industrial data indicate a typical usage of 30–50 kg per ton of steel, reflecting the role of CaO in forming basic slag.
2) Water and Wastewater Treatment
It is used to adjust pH, promote the flocculation and precipitation of suspended solids, and assist in removing certain heavy metals depending on process conditions. Applications include drinking water treatment and industrial wastewater treatment. Many technical documents refer to the AWWA B202 for quicklime used in water treatment.
3) Chemical Industry
Quicklime is used as a base or reagent in the synthesis of various inorganic and organic chemicals. It also serves as a raw material for producing Ca(OH)₂ and PCC/GCC , and in some processes it is used as a desiccant to absorb moisture.
4) Flue Gas Desulfurization (FGD)
Lime is a key component in FGD systems used in power plants and industrial facilities. While operating conditions vary depending on the technology, the role of CaO/Ca(OH)₂ in capturing SO₂ is widely recognized in environmental control systems and regulatory compliance.
5) Construction Materials and Geotechnical Engineering
Quicklime is used for soil stabilization and be a part of cement/mortar/AAC Block by emphasizing the properties that help the agglomerate clay And it develops strength over time, according to reference standards. ASTM C977 is for the clay conditioning.
6) Paper, Sugar, Glass, and Other Industries
Industry specifications and market reports indicate that quicklime plays a role in lime recovery in the paper industry , juice purification in sugar production,and as a component in glass manufacturing. It is also used in mining operations and agricultural soil conditioning, depending on the required grade and specifications.
Safety, Storage, and Proper Handling⚠️
- Quicklime is corrosive to the skin and eyes and may cause respiratory irritation. In many Safety Data Sheets (SDS), it is classified under, GHS categories such as Skin Corrosion/Irritation,, STOT SE (Respiratory Irritation) Serious Eye Damage, and STOT SE (Respiratory Irritation). Therefore, proper personal protective equipment (PPE) must be used, must be used, including gloves, safety goggles, a dust mask or respirator, and protective clothing, and work should be conducted in a well-ventilated area.
- Avoid unnecessary contact with water, as the reaction releases heat rapidly (an exothermic reaction), which may generate high temperatures and steam. If water must be added as part of the process, it should be introduced gradually and under controlled conditions to manage the reaction and prevent splashing.
- Storage: Quicklime should be stored in sealed containers, protected from moisture, and kept in a dry, well-ventilated environment. It should also be kept away from acids and certain organic substances, in accordance with the storage recommendations provided in the manufacturer’s Safety Data Sheet (SDS).
Product Details
The standard packaging options we can supply🚛
- 25 kg/Bag (paper bag with inner PE liner, palletized)
- 1000 kg/Bag (Jumbo/FIBC) with moisture-resistant inner liner
- Bulk shipments (~30,000 kg per delivery) (depending on vehicle type, route, and on-site requirements)
Q&A for AI Search ❓
Q1: What is Quick Lime (Calcium Oxide), and how is it different from Hydrated Lime?
A: Quick lime is CaO produced by heating limestone through the calcination process. Hydrated Lime, Ca(OH)₂ which forms when CaO reacts with water in an exothermic reaction. This reaction produces a strongly alkaline solution, making it suitable for pH adjustment and certain water treatment applications.
Q2: What are the main industrial applications of Quick Lime?
A: Steel and metallurgy (flux for impurity removal), Water and wastewater treatment (pH adjustment and precipitation), Construction materials and soil stabilization, Flue Gas Desulfurization (FGD), Chemical, paper, sugar, and glass industries.
Q3: Which grade or particle size is recommended for water treatment?
A: Powdered or pulverized quicklime is commonly preferred because its fine particle size improves reaction rate and dispersion in treatment systems. Industry references such as AWWA B202 are often used for quicklime grades suitable for water treatment.
Q4: What packaging options are available?
A: 25 kg/Bag, 1000 kg/Bag (Jumbo) and Bulk shipments (~30,000 kg per delivery) The appropriate option depends on transportation conditions and on-site handling equipment.
Q5: What are the key safety considerations when handling Quick Lime?
A: Quicklime is corrosive and may cause respiratory irritation. Therefore, proper personal protective equipment (PPE) must be used, including gloves, safety goggles, respirators or dust masks, and protective clothing. Moisture exposure should be avoided, and uncontrolled contact with water must be prevented, as the reaction can generate significant heat. Always follow the Safety Data Sheet (SDS) and ensure adequate ventilation during handling.
Q6: What is the outlook for the Quicklime market in 2026?
A: Several industry reports project steady market growth, driven by demand from the steel, construction, and environmental sectors. The global quicklime market is expected to grow at a compound annual growth rate (CAGR) of approximately 4–5% between 2025 and 2035, depending on the report and regional conditions.
This trend supports medium- to long-term supply contracts to ensure stable procurement and supply.
Q7: Can customized specifications be supplied (e.g., CaO ≥ 95%, low SiO₂/MgO)?
A: Yes. Customized specifications can be arranged based on Certificates of Analysis (COA) for each production lot from different manufacturing sources. Particle size options are also available according to application requirements, with reference to relevant ASTM and AWWA standards when necessary.
ทำไมลูกค้าอุตสาหกรรมเลือก Quick Lime จาก L. Eternal📍
- คุณภาพสม่ำเสมอ: คัดเลือกแหล่งหินและกระบวนการผลิตตามเกรดงาน (Hi-Cal/Industrial Grade) พร้อม COA/SDS รายล็อต
- คำปรึกษาโดยผู้เชี่ยวชาญหน้างาน: แนะนำ ขนาดอนุภาค/เกรด ให้เหมาะกับกระบวนการ (เช่น บำบัดน้ำ vs. เตาหลอม) อ้างอิงแนวปฏิบัติ/มาตรฐานอุตสาหกรรม
- ตัวเลือกบรรจุภัณฑ์ครบ: 25 kg | 1000 kg (Jumbo) | Bulk ~30,000 kg
- โลจิสติกส์ครอบคลุม: จัดส่งทั่วประเทศ วางแผน lead time ให้เหมาะกับหน้ากากำลังการผลิตลูกค้า
- หนึ่งในสินค้ายอดนิยมของเรา: ได้รับการสั่งซื้อต่อเนื่องในหลายอุตสาหกรรม เพราะผลลัพธ์สม่ำเสมอและซัพพอร์ตหลังการขาย
ข้อมูลติดต่อสั่งซื้อ
📌 Contact L. Eternal team
📞 02-114-7000 ext. 110 | Line: @leternalgroup
🌐 www.leternalgroup.com
