Calcium Sulphide – 500 gram Packs

Calcium Sulphide is an inorganic compound belonging to the metal sulphide class, with the chemical formula CaS and a formula mass of approximately 72.14 g/mol. It consists of calcium and sulphide ions in a 1:1 ratio and is relevant to studies of inorganic reactions, sulphide chemistry, and solid-state materials. Calcium Sulphide is generally described as a white to pale yellow solid, although its appearance can vary with impurities and material condition. Its chemical reactivity requires particular attention because contact with acids or moisture under suitable conditions can release hazardous hydrogen sulphide gas. Calcium Sulphide for laboratory use may be appropriate for specialised inorganic chemistry experiments and research involving sulphide compounds, provided the material’s grade and specifications meet the experimental requirements. Storage in a dry, tightly closed container and careful handling under suitable ventilation are essential for laboratory safety.

Product Specifications

Specification	Details
Appearance	White to pale yellow solid
Assay	99%
Chemical Name	Calcium Sulphide
Alternate Names	Calcium Sulfide, Calcium(II) Sulphide, Calcium Monosulphide
Molecular Formula	CaS
Empirical Formula	CaS
CAS Number	20548-54-3
Molecular Weight	72.14 g/mol
Grade	LR Laboratory Reagent

Key Features of Calcium Sulphide

• Defined chemical composition: Calcium Sulphide has the formula CaS, with calcium and sulphur present in a 1:1 atomic ratio.
• Inorganic sulphide chemistry: Its properties make it relevant to selected investigations of metal sulphides and their chemical reactions.
• Characteristic solid form: It is generally encountered as a white to pale yellow solid, depending on the material and its condition.
• Moisture-sensitive handling: Contact with moisture can contribute to hazardous reaction products, making dry storage and controlled handling important.
• Specialised research relevance: It can serve as a starting material for selected studies of calcium-containing sulphide materials and solid-state chemistry.

Laboratory Applications of Calcium Sulphide

• Inorganic chemistry investigations: Used in suitably equipped laboratories to study the properties and reactions of metal sulphide compounds.
• Solid-state chemistry research: Serves as a starting material in selected investigations of calcium-containing sulphide materials and inorganic solid-state reactions.
• Sulphide reaction studies: Supports controlled research into sulphide chemistry and the behaviour of compatible inorganic compounds.
• Materials characterisation: May be used in specialised investigations examining the structural and chemical properties of inorganic sulphide solids.
• Advanced academic research: Can be considered for supervised investigations involving calcium sulphide chemistry when suitable ventilation, handling procedures, and hazardous-gas controls are available.

Why Choose Lab Wale to Buy Calcium Sulphide

Lab Wale provides a convenient sourcing option for laboratory chemicals and scientific supplies for schools, colleges, universities, research centres, and laboratory professionals. When purchasing Calcium Sulphide, review the chemical identity, stated laboratory grade, available product specifications, and relevant safety documentation to determine whether it is suitable for the intended procedure. Correct identification and appropriate handling are particularly important for moisture-sensitive sulphide compounds. Lab Wale supports laboratory purchasing needs by offering access to relevant scientific supplies for educational and research applications.

Frequently Asked Questions About Calcium Sulphide

What is Calcium Sulphide used for in laboratories?

Calcium Sulphide is used in selected inorganic chemistry investigations, solid-state chemistry research, and studies of metal sulphide compounds. Its use requires suitable laboratory facilities and trained personnel because contact with water or acids can release hazardous hydrogen sulphide gas. It is not suitable for unrestricted classroom demonstrations.

What is the chemical formula and molecular weight of Calcium Sulphide?

The chemical formula of Calcium Sulphide is CaS, and its empirical formula is also CaS. Its formula mass is approximately 72.14 g/mol. These values describe the anhydrous compound consisting of calcium and sulphide ions in a 1:1 ratio.

What is the CAS number of Calcium Sulphide?

The CAS Registry Number for Calcium Sulphide is 20548-54-3. This identifier corresponds to calcium sulphide itself and distinguishes it from other calcium-containing sulphur compounds, including calcium sulphate and calcium polysulphide.

Why must Calcium Sulphide be protected from moisture?

Calcium Sulphide is moisture-sensitive and may release hazardous hydrogen sulphide gas when it reacts with water or acids. Depending on the conditions, contact with water can also present additional reaction hazards. Keep the compound dry and follow the product-specific Safety Data Sheet and institutional handling procedures.

How should Calcium Sulphide be stored and handled safely?

Store Calcium Sulphide in a tightly closed, compatible, moisture-resistant container in a dry, well-ventilated location. Avoid contact with acids, water, and incompatible oxidising agents. Use suitable protective equipment and effective ventilation, and follow established procedures for spill response, hazardous gas risks, and chemical waste disposal.

Storage Conditions for Calcium Sulphide

Store Calcium Sulphide in a tightly closed, compatible, moisture-resistant container in a cool, dry, well-ventilated area. Protect it from humidity and air exposure as specified in the applicable Safety Data Sheet. Segregate it from water, acids, oxidising agents, and other incompatible materials. Restrict access where required by the product’s hazard classification and keep the container properly labelled.

Precautions for Handling Calcium Sulphide

Review the current Safety Data Sheet before use and handle Calcium Sulphide only in a suitably equipped laboratory with trained personnel. Wear appropriate chemical-resistant gloves, protective clothing, and eye protection, and use effective ventilation or a suitable fume hood. Avoid generating or inhaling dust and prevent contact with water or acids. Follow approved procedures for spills, potential hydrogen sulphide release, environmental protection, and hazardous chemical waste disposal.