Bleaching Powder about 33% Chlorine – 500 gram Packs

Bleaching Powder with approximately 33% available chlorine is an inorganic chlorine-releasing oxidizing agent used in educational, analytical, and research laboratories. Commonly associated with calcium hypochlorite and chlorinated lime, commercial bleaching powder is generally a reactive mixture rather than a chemically pure single compound. Its available chlorine content indicates its oxidizing and disinfecting capacity. The white powder is useful for supervised chemistry practicals, oxidation-reduction studies, iodometric estimation of available chlorine, and selected water-treatment and disinfection investigations. This 500 g pack is a convenient quantity for laboratory stock management and controlled experimental work. Its suitability for a particular procedure depends on the method, required chlorine concentration, and applicable product specifications. Bleaching powder is a strong oxidizer and must be handled carefully, kept away from acids and combustible materials, and used with appropriate protective equipment and laboratory safety procedures.

Product Specifications

Specification	Details
Appearance	White powder
Assay	99%
Chemical Name	Bleaching Powder (Commercial Calcium Hypochlorite-Based Mixture)
Alternate Names	Chlorinated Lime, Chloride of Lime, Bleaching Powder
Molecular Formula	Not applicable; commercial bleaching powder has variable composition
Empirical Formula	Not applicable; commercial bleaching powder has variable composition
CAS Number	7778-54-3 (calcium hypochlorite reference; commercial mixture identity may differ)
Molecular Weight	Not applicable to the commercial mixture
Grade	LR Laboratory Reagent

Key Features of Bleaching Powder

• Provides approximately 33% available chlorine, as specified for this product, for relevant oxidation and disinfection investigations.
• White powdered inorganic oxidizing material suitable for measured laboratory dispensing.
• Releases chlorine-based oxidizing species under appropriate aqueous conditions.
• Useful for studying oxidation-reduction reactions and the chemistry of active chlorine.
• Supplied in a 500 g pack for laboratory inventory and controlled experimental use.

Laboratory Applications of Bleaching Powder

• School and college chemistry practicals demonstrating oxidation and reduction, subject to appropriate supervision and risk assessment.
• Iodometric estimation of available chlorine using an established analytical procedure and suitable standardized reagents.
• University laboratory investigations into chlorine-releasing compounds and aqueous oxidation chemistry.
• Water-treatment and disinfection studies conducted under appropriate laboratory protocols; this product should not be assumed suitable for direct potable-water dosing without applicable specifications and validation.
• Research investigations involving oxidation reactions or controlled disinfection experiments where the available chlorine content and product composition are appropriate for the method.

Why Choose Lab Wale to Buy Bleaching Powder

Lab Wale provides a sourcing option for laboratory chemicals and scientific supplies used by schools, colleges, universities, research centres, and laboratory professionals. When purchasing bleaching powder, check the product identity, stated available chlorine content, pack size, grade, and suitability for the intended procedure. Review relevant product and safety information before ordering, particularly when a laboratory method requires a defined active-chlorine concentration. Selecting the correct specification helps laboratories plan procurement and manage chemical use responsibly.

Frequently Asked Questions About Bleaching Powder

What is bleaching powder used for in laboratories?

Bleaching powder is used in suitable oxidation-reduction experiments, available-chlorine estimation, and controlled disinfection or water-treatment studies. Its suitability depends on the experimental method and the product’s composition. Laboratory use should follow an appropriate risk assessment, established procedures, and required protective measures.

What does approximately 33% available chlorine mean?

Available chlorine expresses the oxidizing capacity of bleaching powder in terms of an equivalent amount of chlorine. It does not mean that the product contains 33% free chlorine gas. The value is relevant to calculating reagent quantities and evaluating suitability for a particular analytical or disinfection procedure.

What are the chemical formula and CAS number of bleaching powder?

Commercial bleaching powder has variable composition, so it does not have one universally applicable molecular formula or molecular weight. Calcium hypochlorite, a related active constituent, has the formula Ca(ClO)₂, a formula mass of approximately 142.98 g/mol, and CAS number 7778-54-3. These identifiers should not automatically be treated as a complete description of every commercial bleaching-powder mixture.

Can bleaching powder be used for available-chlorine estimation?

Yes. A recognized iodometric method can estimate available chlorine by reacting a prepared sample with potassium iodide under controlled acidic conditions and titrating the liberated iodine with standardized sodium thiosulfate. The procedure should be performed by trained personnel using suitable ventilation, protective equipment, and an approved laboratory method.

How should bleaching powder be stored and handled safely?

Keep bleaching powder tightly closed in a compatible container in a cool, dry, well-ventilated location, away from heat, moisture, acids, reducing agents, organic substances, and combustible materials. Avoid dust formation and contact with skin or eyes. Review the applicable Safety Data Sheet and follow institutional procedures for handling, spills, and disposal.

Storage Conditions for Bleaching Powder

Store bleaching powder in its original, tightly closed, compatible container in a cool, dry, well-ventilated area protected from direct sunlight, heat, and moisture. Keep it segregated from acids, ammonia-containing materials, reducing agents, organic substances, and combustibles because hazardous reactions or chlorine release may occur. Protect the container from contamination and follow the applicable storage and segregation requirements for oxidizing chemicals.

Precautions for Handling Bleaching Powder

Review the applicable Safety Data Sheet before use and wear suitable chemical-resistant gloves, protective clothing, and safety goggles. Avoid breathing powder or contacting the eyes and skin; use appropriate ventilation and minimize dust generation. Never mix bleaching powder with acids, ammonia, or incompatible cleaning chemicals because hazardous gases may be released. Keep it away from combustible materials, use suitable spill-response procedures, and dispose of residues according to institutional requirements and local regulations. Educational use requires appropriate supervision and a documented risk assessment.