Plaster of Paris – 500 gram Packs

Plaster of Paris is a laboratory material described as a calcium sulfate hemihydrate inorganic setting material. On wetting, calcium sulfate hemihydrate converts into gypsum as it sets into a hardened mass. The material is listed in a 500 gram packs pack size for laboratory purchasing and inventory identification; pack quantity does not establish chemical purity or suitability for a specific method. In educational and analytical work, the relevant chemical properties help determine appropriate experiments, preparation conditions, and safe handling practices. Its behavior should be evaluated with the actual supplied grade, composition, and product-specific safety information in mind. Students, technicians, and researchers should use defined procedures when preparing solutions, measuring samples, or performing controlled demonstrations. Where composition, hydrate state, molecular-weight distribution, or solvent compatibility varies by manufacturer, verify the exact supplied product before using quantitative calculations or relying on method-specific performance.

Product Specifications

Key Features of Plaster of Paris

• Plaster of Paris is identified for laboratory use as a calcium sulfate hemihydrate inorganic setting material.
• On wetting, calcium sulfate hemihydrate converts into gypsum as it sets into a hardened mass.
• Pack configuration: 500 gram Packs; use the full product label to distinguish it from other catalogue sizes.
• Listed chemical form and composition: CaSO4·0.5H2O.
• Suitable only for methods that accept the verified product form, grade, concentration and associated safety constraints.

Laboratory Applications of Plaster of Paris

• Classroom demonstrations of hydration and setting reactions
• Preparation of noncritical educational molds and cast models
• Studies of water-to-powder ratio and setting behaviour
• Observation of exothermic change during gypsum setting
• Materials-science experiments comparing surface texture and hardness

Why Choose Lab Wale to Buy Plaster of Paris

Lab Wale offers Plaster of Paris as part of a catalogue intended for educational institutions, laboratories, and research purchasers. Clear chemical identification, pack information, and the correct reagent grade help teams choose materials for experiments and routine laboratory preparation. Before ordering, compare the intended protocol with the actual formulation, available product details, and safety documentation. Where hydrate state or composition is not identified by the catalogue name, confirm the supplied variant before performing formula-based calculations or selecting specialized analytical methods.

Frequently Asked Questions About Plaster of Paris

What is Plaster of Paris used for in laboratories?

Plaster of Paris is used where its calcium sulfate hemihydrate inorganic setting material properties are relevant. Examples include classroom demonstrations of hydration and setting reactions and preparation of noncritical educational molds and cast models. Only use it where the supplied grade and form meet the experimental or analytical method requirements.

What chemical formula and molecular weight apply to Plaster of Paris?

The formula information for this listing is CaSO4·0.5H2O; the molecular-weight information is 145.15 g/mol. For mixtures, polymers and hydrate-dependent products, a single value may not be meaningful without confirming the actual composition.

How should Plaster of Paris be selected for a laboratory method?

Check the exact chemical identity, concentration or hydration state where relevant, pack size, method compatibility, and current safety information. A nominal LR designation alone does not demonstrate that a material meets the criteria for a particular quantitative or specialized test.

What is an important property of Plaster of Paris?

On wetting, calcium sulfate hemihydrate converts into gypsum as it sets into a hardened mass. This behavior helps explain why the substance may be selected for particular laboratory investigations, and also why controls or precautions may be required during preparation, handling and storage.

How should Plaster of Paris be stored and handled?

Keep very dry in a tightly closed container away from damp floors, water and high humidity. Moisture exposure may prematurely hydrate and reduce setting performance. Avoid inhalation of powder and eye contact; use gloves, goggles and dust control. Do not confine setting plaster around body parts because setting can release heat and cause injury. Read the current product-specific SDS and apply institutional procedures before use.

Storage Conditions for Plaster of Paris

Keep very dry in a tightly closed container away from damp floors, water and high humidity. Moisture exposure may prematurely hydrate and reduce setting performance. Confirm any additional controls from the current SDS and packaging instructions. Store separately from incompatible substances as required by laboratory chemical segregation policies.

Precautions for Handling Plaster of Paris

Review the current Safety Data Sheet before opening the container. Avoid inhalation of powder and eye contact; use gloves, goggles and dust control. Do not confine setting plaster around body parts because setting can release heat and cause injury. Use appropriate laboratory attire and prevent unnecessary exposure. Follow applicable procedures for spills, incident reporting, and disposal; do not discharge residues into drains unless expressly permitted.