Product Details
What is high calcium hydrated lime?
High calcium hydrated lime, also known as calcium hydroxide, is a white, odorless solid. It forms when quicklime reacts with water. With a high pH of around 12.5 in solution at 25°C, its alkaline nature makes it a key compound in various industries.
Specifications
high calcium hydrated lime typical ranges are below：
- Physical State: Solid
- Color: White
- Odor: None
- pH: 12.5 at 25°C (in solution)
- Density: 0.2 g/cm³
- Solubility in Water: 0.100 – 0.125g/100ml at 20°C
- Composition:
- Calcium Hydroxide: 90 – 100%
- Silica – Crystalline Quartz: 0 – 1%
Benefits of Our High Calcium Hydrated Lime
- Exceptional Performance: High calcium content ensures outstanding results in all applications.
- Unmatched Purity: Consistent high purity offers reliable and precise performance.
- Safe and Easy to Use: Releases minimal exothermic heat in water, safer than alternatives.
- Customizable Grades: Multiple grades meet your unique requirements.
- Convenient On – site Delivery: Ready – to – use product delivered directly to your site.
High Calcium Hydrated Lime Production
The production begins with high – quality limestone. After mining, the limestone is crushed and calcined in a kiln. This transforms calcium carbonate into calcium oxide (quicklime). Then, quicklime reacts with a precisely controlled amount of water in a hydrator. The exothermic reaction (CaO + H₂O → Ca(OH)₂ + heat) produces high calcium hydrated lime, which remains a dry powder.
What is hydrated lime used for?
- Agriculture: High calcium hydrated lime disinfects animal bedding and treats agricultural waste. It’s also used for runoff purification and odor reduction in farms.
- Water Treatment: It adjusts water pH and removes contaminants, including heavy metals in wastewater. This lime is vital for water quality improvement.
- Flue Gas Treatment: Employed in dry scrubbing, high calcium hydrated lime cuts down acid gases and heavy metals in flue gas, safeguarding the environment.
- Iron & Steel Industry: In foundries, it prevents mold sticking and protects products from corrosion. Additionally, it’s used in steel mill water treatment.
- Construction: As an anti – stripping additive, high calcium hydrated lime boosts asphalt pavement performance. It enhances aggregate adhesion for durable roads.
- Chemical Processing: This lime acts as an alkali source and is used for pH adjustment in chemical reactions. It also functions as an accelerant in some cases.
- Non – Ferrous Metals: During ore processing, high calcium hydrated lime helps separate valuable metals like copper and gold from their ores.
- Food Industry: Food – grade high calcium hydrated lime is used in certain food production, such as tortilla making. But strict safety rules must be followed.
Is hydrated lime dangerous?
High calcium hydrated lime can be hazardous. It’s a skin irritant (Skin Irrit. 2), causing redness and itching. It can severely damage eyes (Eye Dam. 1). Inhaling its dust may irritate the respiratory system (STOT SE 3), and long – term inhalation may cause cancer (Carc. 1A). Repeated exposure can damage organs (STOT RE 1). Thus, it’s only for professional use, and certain groups should avoid it.
Precautions for Using High Calcium Hydrated Lime
- Only pros can handle high calcium hydrated lime. Avoid skin/eye contact. No eating, drinking, or smoking at work. Pregnant/breastfeeding women should stay clear.
- Control dust; monitor calcium hydroxide & crystalline quartz. Install exhaust if ventilation’s poor. Ensure quick access to eyewash & shower.
- Store in proper, sealed containers, away from water & strong acids.
- For spills, don’t touch, ventilate, and clean with common cleaners.
- Follow local rules for transport & disposal.
FAQ
What are the synonyms of high calcium hydrated lime?
It’s also known as chemical hydrate, Hi – Calcium Hydroxide Commercial Grade, Hyd Chem, Hydrate Construction, Hydrate FGT, Hydrate Drinking Water.
How should I store high calcium hydrated lime?
Store in a well – ventilated place, keep the container sealed, and avoid storing near water, strong acids, and other incompatible materials.
Can high calcium hydrated lime be used in food – related applications?
It can be used for pH adjustment in some food processes if it meets food – grade standards. But due to risks, it’s mainly for industrial and non – food – contact uses.
What should I do if I accidentally get high calcium hydrated lime in my eyes?
Flush eyes with plenty of water or salt water (20 – 30 °C) for at least 30 minutes. Remove contact lenses if possible. Keep rinsing and seek medical help immediately.
For additional information, to view our Product Typical Sheets or to discuss availability with our sales group, please contact us.
