Product Category: Water Treatment Chemicals / Disinfection Chemicals
Chemical Name: Calcium Hypochlorite
Common Market Description: HTH Tablets
CAS Number: 7778-54-3
Chemical Formula: Ca(OCl)₂
Molecular Weight: 142.98 g/mol
Appearance: White to off-white compressed tablets
Product Overview
Calcium Hypochlorite Tablets are a concentrated dry chlorine source designed for controlled and continuous water-disinfection applications.
The tablet format provides slower, more controlled dissolution than loose granular material and is particularly suited to compatible dosing and feeder systems.
High-strength commercial calcium hypochlorite tablets are widely used in municipal, industrial and process-water treatment where reliable free available chlorine is required.
Typical Technical Specification
| Property | Typical Reference |
| SKU | MCS-C4 |
| Active Ingredient | Calcium Hypochlorite |
| Calcium Hypochlorite | Typically around 65–70% depending on grade |
| Available Chlorine | Typically ≥65%; some commercial grades ≥68% |
| Appearance | White to off-white tablets |
| Form | Compressed solid tablet |
| CAS Number | 7778-54-3 |
| Chemical Formula | Ca(OCl)₂ |
| Classification | Strong oxidising agent |
Commercial calcium-hypochlorite tablet systems are available at approximately 70% calcium hypochlorite with minimum available chlorine around 68%, although the exact specification must be confirmed from the supplied product COA.
Applications
- Municipal water treatment
- Industrial water disinfection
- Mine-water treatment
- Process-water treatment
- Cooling-water systems
- Wastewater disinfection
- Swimming-pool treatment
- Compatible automatic chlorination systems
Key Benefits
- Concentrated dry chlorine source
- Controlled dissolution
- Reliable chlorine delivery
- Reduced storage volume compared with dilute liquid hypochlorite
- Good shelf stability when correctly stored
- Suitable for compatible feeder systems
Packaging
Supplied in approved moisture-resistant containers suitable for oxidising chemicals.
Storage
Strong oxidiser. Store cool, dry and well ventilated.
Keep completely separated from acids, ammonia, fuels, oils, organic compounds and reducing agents.
Never mix calcium hypochlorite with other chlorine products
