Calcium Sulpahte Anhydrous – 500 gram Packs

Calcium Sulphate Anhydrous is an inorganic calcium salt with the chemical formula CaSO₄ and a formula mass of approximately 136.14 g/mol. It belongs to the sulphate class of compounds and contains calcium, sulphur, and oxygen without water of crystallisation. This compound is generally found as a white solid and exhibits limited solubility in water, making it relevant to laboratory studies of solubility, ionic equilibria, and inorganic salt chemistry. Calcium Sulphate Anhydrous is also useful in selected investigations involving hydration, moisture absorption, and the properties of calcium-based materials. Its defined chemical composition makes it relevant to school and college chemistry practicals, university experiments, analytical procedures, and research involving inorganic compounds. For laboratory use, its suitability depends on the stated reagent grade and the requirements of the intended procedure. Appropriate storage in a tightly closed, dry container helps protect the material from unwanted moisture and contamination.

Product Specifications

Specification	Details
Appearance	White powder
Assay	99%
Chemical Name	Calcium Sulphate Anhydrous
Alternate Names	Anhydrous Calcium Sulphate, Calcium Sulfate, Anhydrous Calcium Sulfate
Molecular Formula	CaSO₄
Empirical Formula	CaO₄S
CAS Number	7778-18-9
Molecular Weight	136.14 g/mol
Grade	LR Laboratory Reagent

Key Features of Calcium Sulphate Anhydrous

• Defined inorganic composition: Contains calcium, sulphur, and oxygen in the fixed chemical composition CaSO₄, without water of crystallisation.
• Characteristic physical properties: A white solid suitable for weighing and handling in appropriate laboratory procedures.
• Limited water solubility: Relevant to experiments investigating solubility behaviour and equilibrium in aqueous systems.
• Hydration-related chemistry: Supports studies comparing anhydrous calcium sulphate with hydrated forms under suitable experimental conditions.
• Broad scientific relevance: Useful in selected inorganic chemistry practicals and investigations involving calcium salts and solid-state materials.

Laboratory Applications of Calcium Sulphate Anhydrous

• Inorganic chemistry experiments: Used in supervised practicals investigating calcium compounds, sulphate salts, and their characteristic chemical properties.
• Solubility studies: Supports laboratory investigations of calcium sulphate solubility and related ionic equilibrium concepts.
• Hydration investigations: Used in selected experiments comparing anhydrous and hydrated calcium sulphate forms and examining changes associated with water uptake.
• Analytical chemistry: May be used in specific procedures involving calcium sulphate or sulphate-containing materials when the method permits this compound and grade.
• Materials research: Serves as a starting material in selected investigations involving calcium-based inorganic solids and their preparation or characterisation.

Why Choose Lab Wale to Buy Calcium Sulphate Anhydrous

Lab Wale provides a convenient sourcing option for laboratory chemicals and scientific supplies used by schools, colleges, universities, research centres, and laboratory professionals. When purchasing Calcium Sulphate Anhydrous, review the chemical identity, stated reagent grade, available specifications, and relevant safety documentation to assess suitability for the intended procedure. Choosing the correct anhydrous form is particularly important for experiments involving hydration, solubility, and inorganic chemistry. Lab Wale helps institutional and laboratory buyers source relevant scientific supplies according to their practical and research requirements.

Frequently Asked Questions About Calcium Sulphate Anhydrous

What is Calcium Sulphate Anhydrous used for in laboratories?

Calcium Sulphate Anhydrous is used in selected inorganic chemistry experiments, solubility investigations, studies of calcium salts, and research involving inorganic materials. Some specially prepared forms can also be used as laboratory drying agents. Its suitability depends on the product’s properties, stated grade, and the requirements of the intended procedure.

What is the chemical formula of Calcium Sulphate Anhydrous?

The chemical formula is CaSO₄, and its empirical formula is also CaSO₄ because the elemental ratio is already in its simplest whole-number form. The anhydrous compound contains no water of crystallisation, distinguishing it from calcium sulphate dihydrate, CaSO₄·2H₂O.

What are the CAS number and molecular weight of Calcium Sulphate Anhydrous?

Calcium Sulphate Anhydrous has CAS number 7778-18-9 and a formula mass of approximately 136.14 g/mol. These values refer to the anhydrous compound. Hydrated forms have different formula masses because their compositions include water molecules.

How does Calcium Sulphate Anhydrous differ from hydrated calcium sulphate?

Anhydrous calcium sulphate has the formula CaSO₄ and contains no water of crystallisation. Calcium sulphate dihydrate, commonly called gypsum, has the formula CaSO₄·2H₂O. The two forms differ in formula mass, water content, and certain physical properties, which can affect their suitability for specific laboratory experiments.

How should Calcium Sulphate Anhydrous be stored and handled?

Store the material in a tightly closed, compatible container in a cool, dry, well-ventilated area. Avoid generating dust and prevent eye contact or unnecessary skin exposure. Wear suitable laboratory protective equipment and consult the current Safety Data Sheet for product-specific handling, storage, spill response, and disposal guidance.

Storage Conditions for Calcium Sulphate Anhydrous

Keep Calcium Sulphate Anhydrous in a tightly closed, compatible container in a cool, dry, well-ventilated storage area. Protect it from excessive moisture to help maintain its intended anhydrous composition and minimise contamination. Keep the container clearly labelled and follow the applicable Safety Data Sheet for additional storage requirements. Avoid storing it in conditions that could compromise the material’s suitability for the intended laboratory procedure.

Precautions for Handling Calcium Sulphate Anhydrous

Review the current Safety Data Sheet before use. Wear appropriate safety goggles, laboratory clothing, and gloves, and avoid inhaling airborne dust or allowing the powder to enter the eyes. Use suitable ventilation during weighing and transfer operations when dust may be generated. Keep the container closed when not in use, manage spills using established laboratory procedures, and dispose of waste according to institutional requirements and applicable regulations.