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Plaster of Paris (POP)
Plaster of Paris (POP) (Product Code: SCL-919/202) is calcium sulphate hemihydrate, a fine white powder used to study setting reactions and to cast moulds and models in school science laboratories. Teachers use the 500 gm pack, listed as analytical reagent grade with an MSDS, for lessons on the properties of salts and for art-integrated casting projects. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, alongside the science kits for students in India that schools order for practical work.
Specifications
| Parameter | Detail |
|---|---|
| Product | Plaster of Paris (calcium sulphate hemihydrate) |
| Capacity | 500 gm |
| Grade | Analytical reagent |
| 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-919/202 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Plaster of Paris Used For?
When students study salts, they mix a spoonful of POP with water in a china dish and observe that the paste warms slightly and hardens as it takes up water and turns back into gypsum. The same property is used to make casts of leaves, shells and footprints for biology and earth-science displays, to prepare moulds for small models, and in older laboratory practice to seal gaps around apparatus joints. Teachers can pair the setting experiment with a discussion of how POP is made by heating gypsum and why it is stored away from moisture.
For a smooth paste, sprinkle the powder into the water rather than the other way round, stir without whipping in air, and pour promptly because the mix stiffens quickly. Clean bowls and spatulas before the plaster hardens, and never pour leftover slurry into a sink, where it can set in the drain. A 500 gm pack is a convenient quantity for class demonstrations and project work.
Supplier
Plaster of Paris (POP) comes from Jain Scientific Equipments Private Limited, which trades as ScienceLab in Ambala, Haryana, India. The company supplies practical materials such as this alongside laboratory apparatus, so teachers can order a casting activity's powder, dishes and spatulas together for delivery in India and international markets. Background on the company is on the company profile page.
Related Chemistry Lab Products
Tools and vessels that make POP experiments and casting work easier:
- Porcelain Dish (China Dish) — a smooth vessel for mixing small batches of paste.
- Spatula, Spoon End — scoops powder and stirs the paste.
- Glass Measuring Cylinder — measures water for a consistent mix.
- Pestle And Mortar — breaks up any lumps before mixing.
- Glazed Tiles — an easy-clean surface for pouring and setting casts.
Find more materials and apparatus in the Chemistry Lab category.
Frequently Asked Questions
Who supplies Plaster of Paris (POP) SCL-919/202?
Plaster of Paris (POP) SCL-919/202 is supplied by Jain Scientific Equipments Pvt Ltd, trading as ScienceLab, Ambala, Haryana, India. The company sources the 500 gm analytical reagent grade pack, sends it with its MSDS and supplies schools and colleges in India and international markets.
How much Plaster of Paris does one pack contain?
One pack of Plaster of Paris (POP) contains 500 gm of fine powder, a convenient quantity for classroom setting demonstrations and several small casting projects such as leaf prints, shell casts or model moulds. Larger needs can be met with multiple packs.
Why does Plaster of Paris harden after mixing with water?
Plaster of Paris hardens because the calcium sulphate hemihydrate takes up water and re-forms gypsum crystals, which grow and interlock into a solid mass. The reaction releases a little heat, so students can feel the paste warm slightly as it sets.
What is the shelf life of Plaster of Paris (POP)?
Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted. Keep Plaster of Paris sealed in a dry place, because moisture from the air makes the powder lump and set poorly.
Is Plaster of Paris safe for students to handle?
With normal care, Plaster of Paris is suitable for supervised student use. Avoid breathing the dust, keep it out of eyes, and never cast plaster around hands or fingers because it warms as it sets. The MSDS supplied with each pack gives full guidance.
What should a school include in a Plaster of Paris enquiry?
A school enquiry for Plaster of Paris (POP) should state the product code SCL-919/202, the number of 500 gm packs, the delivery address and any purchase-order format your institution requires, so the quotation can be issued without follow-up questions.
Request a Quote
To buy Plaster of Paris (POP), contact us through the contact page with the quantity required, or place it in the enquiry cart together with dishes, spatulas and other items for your practical.
Last updated: 24 September 2026
