Quicklime (Calcium Oxide) Supplier in Malaysia
- Also known as
- Calcium Oxide
- CaO
- Kapur Tohor
- Burnt Lime
Quicklime supplier for steel, water treatment, construction, pulp and paper and process plants across Malaysia. Chemically calcium oxide (CaO) and known locally as kapur tohor, quicklime is limestone calcined to drive off carbon dioxide, leaving a strong, water-reactive alkali bought by the tonne.
Commercial forms include lumps, pebbles and ground powder. High-calcium grades are commonly specified at a minimum available CaO of about 90 per cent, with sizing and reactivity stated when the plant works to a defined feed class. Packing and documentation are confirmed with the quotation.
Buyers use quicklime as a steelmaking flux, as an on-site slaking feed for pH correction and metal precipitation, for soil stabilisation, kraft recausticising and process or flue-gas neutralisation. It is not hydrated lime or calcium carbonate, and the three products are not interchangeable on dose.
Send the form, available-CaO target, sizing or reactivity class, quantity and delivery location with your enquiry. Availability and commercial terms are confirmed with the quotation.
- CAS number
- 1305-78-8
- Formula
- CaO
- Grade
- high calcium, industrial
- Appearance
- white to off-white lumps, pebbles or ground powder
Quicklime grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| High-calcium lump and pebble quicklime | lumps or pebbles | typically ≥ 90% available CaO on high-calcium grades | Steelmaking flux, mineral-processing reagent, on-site slaking for water treatment, and bulk soil stabilisation where coarse feed is preferred. | Confirm the required pack format with the quotation. |
| Ground quicklime powder | ground powder | typically ≥ 90% available CaO on high-calcium grades | Faster slaking and dosing where a powder feed is required for pH correction, process neutralisation, recausticising or fine-spread soil work. | Confirm the required pack format with the quotation. |
| Sizing and reactivity-specified quicklime | sized lumps, pebbles or powder as specified | available CaO, sizing and reactivity confirmed against the required grade | Plants that buy against a particle-size range, residual carbonate limit or reactivity class rather than a generic industrial label. | Confirm the required pack format with the quotation. |
How to buy quicklime from ChemTrade
Request a quote for quicklime
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | white to off-white lumps, pebbles or ground powder | — |
| Available CaO (high-calcium grade) | ≥ 90 % | — |
| Chemical formula | CaO | — |
| CAS number | 1305-78-8 | — |
| Reaction with water | slakes vigorously to calcium hydroxide with substantial heat release | — |
| Sizing and reactivity | quoted per grade against the required specification | — |
Quicklime applications
Safety and handling
- Classification
- irritant, serious eye damage
Store dry in closed bags or sealed bulk containers, clear of the floor and away from water, acids and moist air. Quicklime absorbs moisture and carbon dioxide and loses available CaO if left open. Contact with water releases enough heat to boil free water and can ignite nearby combustibles. The dust causes serious eye damage and burns damp skin, so use sealed goggles, gloves and dust protection, and never slake it in a closed vessel.
Common questions about quicklime
Is quicklime the same as calcium oxide?
Yes. Quicklime is the industrial trade name for calcium oxide (CaO), also called burnt lime, unslaked lime, pebble lime or kapur tohor. It is not the same product as hydrated lime (calcium hydroxide) or calcium carbonate.
Is quicklime the same as hydrated lime or calcium hydroxide?
No. Quicklime is calcium oxide (CaO). Hydrated lime is calcium hydroxide, Ca(OH)2, made by slaking quicklime with water. They are dosed differently and must not be substituted without recalculating the requirement. Use the hydrated-lime page when the specification calls for the already-slaked product.
Which form should I request, lumps, pebbles or powder?
Lump and pebble quicklime suit bulk flux, mineral-processing and on-site slaking where coarser feed is preferred. Ground powder is chosen for faster slaking, fine dosing and applications that need a powder feed. State the preferred size range with the enquiry if your plant already works to one.
What is high-calcium quicklime?
High-calcium quicklime is the low-magnesia commercial grade, typically sold against a minimum available CaO such as 90 per cent. Dolomitic or magnesium-bearing lime is a different composition and should be requested only when that chemistry is intentional. Send the assay or residual limits your process requires.
Can quicklime be used for water treatment and soil stabilisation?
Yes. Water-treatment plants commonly slake quicklime on site to milk of lime for pH correction and related duties. Civil and ground-improvement work uses it to dry and stabilise wet subgrades. Confirm the form, available CaO and quantity so the quoted grade matches the method of use.
What details are needed for a quicklime price enquiry?
Provide form or grade, available-CaO or other specification targets, quantity and delivery location. Mention preferred packing, documentation needs and required timing so the quotation can address the full requirement.