What Is Unslaked Lime?

Unslaked lime, also known as quicklime or calcium oxide, is a chemical compound with the formula CaO. It is produced by heating limestone, which is primarily composed of calcium carbonate, in a process called calcination. This process involves heating the limestone to temperatures exceeding 900 degrees Celsius, causing it to decompose into calcium oxide and carbon dioxide. The resulting unslaked lime is a white, caustic solid that has a variety of applications across different industries. One of the primary uses of unslaked lime is in the construction industry, where it serves as a key ingredient in the production of cement and mortar. When mixed with water, unslaked lime undergoes a chemical reaction known as slaking, producing calcium hydroxide, or slaked lime. This slaked lime is then used in various construction applications, including plastering, masonry, and as a stabilizing agent for soil. In addition to construction, unslaked lime is also utilized in the manufacturing of glass, steel, and paper. It plays a crucial role in the chemical industry as a reagent in various chemical processes, including the production of calcium carbide and other calcium compounds. Furthermore, unslaked lime is used in water treatment processes to remove impurities and adjust pH levels, making it an essential component in ensuring clean and safe drinking water. Despite its many benefits, unslaked lime must be handled with care due to its caustic nature. It can cause severe burns and irritation upon contact with skin or eyes, and inhalation of its dust can lead to respiratory issues. Therefore, proper safety precautions, including the use of personal protective equipment, are essential when working with this compound.

How Is Unslaked Lime Used in Construction?

Unslaked lime plays a vital role in the construction industry, primarily due to its ability to react with water and form slaked lime, which is essential for various building materials. When unslaked lime is mixed with water, it undergoes a slaking process that produces calcium hydroxide. This slaked lime is then used in several applications, including mortar, plaster, and lime-based paints. In masonry, unslaked lime is often combined with sand and water to create mortar, which is used to bind bricks and stones together. The use of lime mortar has several advantages over traditional cement-based mortars, including improved flexibility, breathability, and resistance to cracking. Lime mortar allows for the natural movement of building materials, reducing the risk of damage over time. Additionally, unslaked lime is used in the production of plaster, which is applied to walls and ceilings to create a smooth finish. Lime plaster is known for its durability and ability to regulate humidity, making it an excellent choice for both interior and exterior applications. It also has the added benefit of being environmentally friendly, as it is made from natural materials and can be recycled. Furthermore, unslaked lime is utilized in soil stabilization, particularly in road construction and civil engineering projects. When mixed with soil, unslaked lime improves the soil's load-bearing capacity and reduces plasticity, making it easier to work with. This process is especially beneficial in areas with poor soil conditions, as it enhances the overall stability and longevity of the constructed infrastructure. Overall, the use of unslaked lime in construction not only enhances the quality and durability of building materials but also contributes to sustainable building practices. Its versatility and effectiveness make it an indispensable component in modern construction techniques.

What Are the Safety Precautions for Handling Unslaked Lime?

Handling unslaked lime requires strict adherence to safety precautions due to its caustic nature and potential health hazards. When working with unslaked lime, it is essential to wear appropriate personal protective equipment (PPE) to minimize the risk of injury. This includes safety goggles to protect the eyes from dust and splashes, gloves to prevent skin contact, and a dust mask or respirator to avoid inhalation of fine particles. It is also crucial to work in a well-ventilated area to reduce the concentration of airborne dust. If working indoors, ensure that there is adequate airflow to prevent the accumulation of harmful dust. In case of accidental contact with skin or eyes, it is important to rinse the affected area immediately with plenty of water and seek medical attention if necessary. When storing unslaked lime, it should be kept in a cool, dry place, away from moisture and incompatible materials. Containers should be tightly sealed to prevent moisture absorption, which can lead to dangerous reactions. Additionally, it is advisable to label all containers clearly to indicate the presence of caustic materials and to keep them out of reach of children and pets. In the event of a spill, it is important to follow proper cleanup procedures. Use appropriate tools, such as a dustpan and broom, to collect the material, and dispose of it according to local regulations. Avoid using water to clean up spills, as this can cause the unslaked lime to react violently, producing heat and potentially hazardous conditions. By following these safety precautions, individuals can minimize the risks associated with handling unslaked lime and ensure a safe working environment.

What Are the Environmental Impacts of Unslaked Lime?

Unslaked lime, while beneficial in various industrial applications, also has environmental impacts that must be considered. The production of unslaked lime involves the calcination of limestone, a process that releases carbon dioxide into the atmosphere. This contributes to greenhouse gas emissions, which are a significant factor in climate change. The cement industry, which heavily relies on unslaked lime, is one of the largest industrial sources of carbon dioxide emissions globally. However, unslaked lime also has positive environmental applications. In water treatment, it is used to neutralize acidic waters and remove impurities, contributing to cleaner water sources. Additionally, unslaked lime can be used in soil stabilization, which helps improve land use and reduce erosion, promoting sustainable agricultural practices. Moreover, unslaked lime is often employed in the remediation of contaminated sites. It can help immobilize heavy metals and other pollutants in soil, reducing their bioavailability and preventing them from entering the food chain. This application highlights the potential of unslaked lime as a tool for environmental restoration. To mitigate the negative environmental impacts associated with unslaked lime production, industries are exploring alternative methods and technologies. These include carbon capture and storage techniques that aim to reduce emissions during the calcination process. Additionally, the use of alternative raw materials and the recycling of lime-based products can help decrease the overall environmental footprint. In conclusion, while unslaked lime has environmental impacts primarily related to its production, it also offers significant benefits in various applications that promote sustainability and environmental health. Balancing these factors is essential for responsible use and management of this important chemical compound.

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unslaked lime8 factories verified

Yantai Wenxu Industrial Co., Ltd.

5.0

Main Products:

Alumina Ceramic, Zirconia Ceramic, Carbon Black, Sodium Bicarbonate, Soda Ash, Polyaluminium Chloride, Water Treatment Chemical, Aluminium Sulphate, Sodium Metabisulphite, Hydrated Lime

Country/Region:

Shandong, China

R&D Capacity:

OEM Service

Sample Service:

Sample Available

Company Profile:

Yantai Wenxu Chemical Co., Ltd., founded in 2003, is a mainly supplier of aluminum sulfate, ammonium alum, potassium alum, polyaluminium chloride, calcium hydroxide, etc. Series production, research and development, sales for the integration of the world's leading diversified chemical production enterprises, annual output of 150000 tons, including aluminum sulfate series products of alum series of products with annual capacity of 30000 tons, polyaluminium chloride with annual capacity of 20000 tons, calcium hydroxide with annual capacity of 20000 tons. Wenxu chemical has passed the international ISO9000: 2008 quality management system standard certification enterprise, and obtained the "national industrial product production license" in 2014, and obtained the "shandong domestic product concerning drinking water sanitation safety product hygiene license approval" in 2016. Meanwhile, in 2016.

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1/4

Lianyungang Zhonghong Chemical Co., Ltd.

5.0

Main Products:

Tricalcium Phosphate Monocalcium Phosphate, Magnesium Chloride Potassium Chloride, Calcium Chloride Pharma Sodium Chloride, Ammonium Chloride Ammonium Acetate, Zinc Citrate Zinc Gluconate Zinc Acetate, Ferric Ammonium Citrate Ferrous Fumarate, Potassium Acetate Sodium Acetate, Magnesium Acetate Calcium Acetate, Calcium Citrate Magnesium Citrate, Manganese Acetate Copper Acetate

Country/Region:

Jiangsu, China

R&D Capacity:

OEM/ODM Service

Sample Service:

Sample Available

Company Profile:

Lianyungang Zhonghong Chemical Co., Ltd. is located in Lianyungang, a nationally key city, Jiangsu Province, where the environment is beautiful, the transportation is convenient, and there are many outstanding people. Our company is a fine chemical enterprise mainly engaged in R&D and production of high-purity inorganic salts and food additives. The company's production base has several production lines. We specialize in the production of food additives, pharmaceutical additives and high-purity inorganic salt products, mainly including calcium, Magnesium, Zinc, Iron, Potassium, Sodium, Ammonium and other fine chemical products.

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High Quality Calcium Oxide with Good Price/CAS No.: 1305-78-8

US$320.00-680.00

1 Ton(MOQ)

High Purity Cao Calcium Oxide Cao Food Additives

US$350.00-785.00

1 Ton(MOQ)

Quick Lime Calcium Oxide Food/Pharma Grade Cao

US$0.31-0.70

1 kg(MOQ)

1/4

Changshu Hongyu Calcium Co., Ltd.

Main Products:

Calcium Oxide, Calcium Hydroxide, Quicklime, Lime, Environmentally Friendly Lime, Calcium Oxide Manufacturer, Calcium Hydroxide for Lubricating Oil, General Purpose Calcium Oxide

Country/Region:

Jiangsu, China

R&D Capacity:

OEM/ODM Service

Sample Service:

Sample Available

Company Profile:

Our company was established in 1984

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Wholesale Quick Lime Calcium Oxide for Farming

US$105.00-349.00

20 Tons(MOQ)

Cheapest Unslaked Lime Quick Lime 95% High Purity Calcium Oxide

US$105.00-349.00

20 Tons(MOQ)

High Whiteness Low Iron Calcium Hydroxide for Industrial Applications

US$105.00-375.00

18 Tons(MOQ)

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Weifang Zhenxing Rubber Co., Ltd.

Main Products:

Rubber Conveyor Belt, Ep Conveyor Belt, Chevron Conveyor Belt, Sidewall Conveyor Belt, Steel Cord Conveyor Belt, Oil Resistant Conveyor Belt, Solid Woven PVC Pvg Conveyor Belt, Conveyor Belt, Heat Resistant Conveyor Belt, Fire Resistant Conveyor Belt

Country/Region:

Shandong, China

R&D Capacity:

OEM/ODM Service

Sample Service:

Sample Available

Company Profile:

Shandong Weifang Zhenxing Group, founded in 1980, is a large-scale comprehensive joint-stock enterprise with myriad industries and diversified operations. Weifang Zhenxing Rubber Co. Ltd., a subsidiary of Weifang Zhenxing Group, covers an area of 80, 000m2, with both output value and assets of over 100 million yuan. The main products are various types of conveyor belts including conveyor belts of general cotton canvas, nylon (NN), polyester (EP) whole core (PVC, PVG), steel cord, high-temperature resistance, acid and alkali resistance, anti-static, fire resistance, oil resistance, cold resistance, high strength, and high wear-resistant conveyor belt high-intensity corrugated sidewall conveyor belt, and pattern conveyor belt. The products have excellent shock resistance, abrasion resistance, high strength ductility, and long service life, which can better meet the demands of the transport of materials in such industries as large coal mines, metallurgy, chemical industry, port, and so on. The products are sold in dozens of provinces across China and also exported to Ukraine, Russia, South Africa, Vietnam, Korea, Japan, India, Western Europe, and other countries, winning the praise and trust of customers at home and abroad. Special pattern models and various types of conveyor belts can also be manufactured according to customers' requirements.

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General Purpose Impact and Abrasion Resistant Conveyor Belt

US$2.38-2.70

100 Meters(MOQ)

Rubber Conveyor Belt Used Across Industries to Convey Varied Products

US$2.38-2.70

100 Meters(MOQ)

Nr+SBR Rubebr High Abrasion Resistant Conveyor Belt

US$2.80-30.00

100 Meters(MOQ)

Multi-Ply Fabric Conveyor Belt Ep Rubber Conveyor Belt with High Strength

US$2.00-3.60

100 Meters(MOQ)

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Shandong ALPA Powder Technology Co., Ltd.

17 yrs ·4.0

·Manufacturer/Factory & Trading Company

Main Products:

Jet Mill, Air Classifier, Air Classifying Mill, Impact Mill, Ball Mill and Air Classifier Production Line, Powder Surface Modification Production Line, Turbo Mill, Pin Mill, Spiral Jet Mill, Laboratory Equipment

Country/Region:

Shandong, China

R&D Capacity:

OEM/ODM Service

Sample Service:

Sample Available

Company Profile:

Shandong ALPA Powder Technology Co., Ltd is a world-renowned supplier of powder processing systems, committed to traditional powder industry development. For 20 years, focused on the research and development of dry grinding, classification, powder shaping, surface modification and provided systematic solutions. We provide customized and international certified products: Jet Mill, Air Classifying Mill, Classifier, Ball Mill and Classifying production line, powder surface modification production line, etc.

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High Quality Unslaked Lime Dry Grinding Production Line Cell Mill

US$30,000.00-90,000.00

1 Piece(MOQ)

1/4

Qingzhou Zhongyuan Chemical Industry Co., Ltd.

24 yrs ·5.0

·Manufacturer/Factory

Main Products:

Carbon Black

Country/Region:

Shandong, China

R&D Capacity:

OEM Service

Sample Service:

Sample Available

Company Profile:

We commit to supply good products and excellent service!

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Cao, Calcium Oxide 80%~98%, Low Price, Large Quantity Supply

US$60.00-300.00

5 Tons(MOQ)

1/4

Qingdao Zolo Hibest Co., Ltd.

3 yrs

·Trading Company

Main Products:

Rubber Sheet, Rubber Mat, Rubber Floor, Rubber Conveyor Belt, PVC Curtain, PVC Mat, PVC Floor

Country/Region:

Shandong, China

R&D Capacity:

OEM/ODM Service

Sample Service:

Sample Available

Company Profile:

Qingdao zolo hibest Co., Ltd was established in the year of 2010, we are professional manufacturer of rubber products and plastic products over may years. Our rubber products includes rubber sheet, rubber mat, rubber floor, rubber profile etc. Plastic products includes PVC door curtain, PVC cushion mat, PVC floor mat etc.

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Standard Ep Rubber Conveyor Belt Ep150 Ep200 for Conveyor System

US$6.50-28.90

100 Meters(MOQ)

1/4

Jiangsu Sankon Building Materials Technology Co., Ltd.

13 yrs

·Manufacturer/Factory & Trading Company

Main Products:

AAC Block Machine, ALC Panel Machine, Block Making Machine, Brick Making Machine

Country/Region:

Jiangsu, China

R&D Capacity:

OEM/ODM Service

Company Profile:

JIANGSU SANKON CONSTRUCTION AND TECHNOLOGY Co., Ltd. is a China based AAC block equipment and dry mortar equipment manufacturer. We manufacture a wide range of building material machines, including block making machine, concrete panel machine, dry mortar machine, and more. We also provide a complete line of components for AAC machines, like pouring mixers, autoclaves, cutting machines and tilting hangers.

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