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Calcium Oxide (Powder) Purified
Calcium Oxide (Powder) Purified (Product Code: SCL-795/142) is quicklime in powder form, used to demonstrate the exothermic reaction of a metal oxide with water and to prepare lime water in school and college chemistry laboratories. Science teachers also use it to dry ammonia gas in senior practicals; it is listed in a 500 mg pack as an analytical reagent with an MSDS. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, a chemistry consumables supplier for schools and colleges.
Specifications
| Parameter | Detail |
|---|---|
| Form | Powder |
| Pack size (as listed) | 500 mg |
| Grade (as listed) | Analytical reagent; the product name says purified – confirm grade at enquiry |
| Safety documentation | Supplied with MSDS |
| Shelf life | Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted. |
| Product code | SCL-795/142 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Calcium Oxide Powder Used For?
In the textbook activity, a small amount of quicklime is placed in a beaker and water is added slowly. The mixture hisses, the beaker becomes noticeably warm and the powder turns into slaked lime, showing a combination reaction that releases heat. Recording the water temperature before and after with a thermometer turns it into a simple calorimeter experiment. Once the milky suspension settles and is filtered, the clear filtrate is lime water, which turns milky when carbon dioxide is bubbled through it.
Quicklime also dries ammonia gas, which reacts with common drying agents such as concentrated sulphuric acid and calcium chloride. It is caustic, so wear goggles, avoid skin contact and add water in small portions rather than tipping water onto a heap of powder. In open air it slowly absorbs moisture and carbon dioxide and loses its reactivity, so reseal the pack straight after taking out the amount needed.
Supplier
Jain Scientific Equipments Private Limited, trading as ScienceLab, is based in Ambala, Haryana, and supplies chemicals like quicklime to educational institutions and dealers in India and international markets. Teachers can source the powder together with lime water and calcium carbonate for a complete lime-cycle lesson. Read more about the company on the ScienceLab profile.
Related Chemistry Lab Products
These items complete the quicklime, slaked lime and lime-water sequence:
- Calcium Carbonate — limestone, which gives quicklime when strongly heated.
- Calcium Hydroxide — the slaked lime formed in the reaction, for comparison.
- Lime Water — a ready solution for the carbon dioxide test.
- Calcium Oxide (Granules) — the granular form, often chosen for packing drying tubes.
- Digital Thermometer — records the temperature rise during slaking.
More reagents are listed in the Chemistry Lab category.
Frequently Asked Questions
Who supplies Calcium Oxide (Powder) Purified SCL-795/142?
Calcium Oxide (Powder) Purified (SCL-795/142) is supplied by Jain Scientific Equipments Pvt Ltd, trading as ScienceLab, Ambala, Haryana, India. The company sources this quicklime powder for school and college practicals and sends it with an MSDS to buyers in India and international markets.
What quantity of Calcium Oxide (Powder) Purified is in the pack?
The listing gives the Calcium Oxide (Powder) Purified pack size as 500 mg. As this is small for classroom use, please confirm the quantity you need through our contact page before ordering, so the quotation matches your practical plan.
Is Calcium Oxide (Powder) Purified purified grade or analytical reagent?
The product name says purified, while the listing describes Calcium Oxide (Powder) Purified as an analytical reagent. If your method or tender specifies a particular grade, ask us to confirm it before you order so that the supplied material meets your requirement.
Why does calcium oxide get hot with water?
Calcium oxide combines with water to form calcium hydroxide, and that reaction releases a lot of heat. When using Calcium Oxide (Powder) Purified, add water slowly in small portions and keep faces away from the beaker while the mixture hisses.
What is the shelf life of Calcium Oxide (Powder) Purified?
Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted. Keep Calcium Oxide (Powder) Purified tightly closed and dry, because air moisture and carbon dioxide gradually convert it.
Can you supply larger quantities of Calcium Oxide (Powder) Purified or export orders?
Yes. Calcium Oxide (Powder) Purified is supplied to schools, colleges and dealers in India and international markets. Tell us the quantity and destination, and we will confirm what can be supplied and how it will be dispatched for your order.
Request a Quote
Contact us through the contact page with the quantity you require, or add Calcium Oxide (Powder) Purified (SCL-795/142) to the enquiry cart with lime water and calcium carbonate for one quotation.
Last updated: 24 September 2026
