Molekula
Calcium hypochlorite
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Calcium hypochlorite is a strong oxidizing agent and disinfectant, widely used in water treatment, sanitation, and bleaching applications. It releases chlorine when dissolved in water, making it effective for killing bacteria, viruses, and algae. This chemical has a CAS number of 7778-54-3, with the molecular formula Ca(OCl)₂ and a molecular weight of 142.98. It must be stored at ambient conditions and carries a **Danger** signal word due to its corrosive and oxidizing properties. Molekula supplies calcium hypochlorite from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 kg — £91.90 per pack ex VAT · £110.28 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to cream or pale grey granular powder |
| Identification | Conforms to reference |
| Assay | 62-72% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 5.1 |
| Packing Group | II |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Powder |
| Odour | Strong chlorine odor |
| Melting Point | 100 °C |
| Density | 2.350 g/cm³ |
| Refractive Index | 1.545 |
Source: PubChem CID 24504 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 54543637 |
| CAS Number | 7778-54-3 |
| IUPAC Name | calcium dihypochlorite |
| Molecular Formula | Ca(OCl)2 |
| Molecular Weight | 142.98 |
| Exact Mass | 141.8901 |
| SMILES | [O-]Cl.[O-]Cl.[Ca+2] |
| InChIKey | ZKQDCIXGCQPQNV-UHFFFAOYSA-N |
| InChI | InChI=1S/Ca.2ClO/c;2*1-2/q+2;2*-1 |
| PubChem CID | 24504 |
| UN Number | UN1748 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28281000 |
| Tariff Code | 2828100090 |
Safety & GHS
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Oxidizing
GHS03
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Corrosive
GHS05
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- EUH031 Contact with acids liberates toxic gas
- H272 May intensify fire; oxidizer
- H302 Harmful if swallowed
- H314 Causes severe skin burns and eye damage
- H400 Very toxic to aquatic life
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P220 Keep/Store away from clothing/combustible materials
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Bleaching powder
- Calcium hypochloride
- Chemichlor G
- Chlorine of lime
- Hypochlorous acid, calcium salt
- Pittchlor
- Pittcide
- Pittclor
- Solvox KS
- T-Eusol
Frequently asked questions
What is calcium hypochlorite commonly used for?
Calcium hypochlorite is primarily used for water treatment (disinfection), bleaching, and as a sanitizing agent in swimming pools, food processing, and industrial applications.
What is the chemical formula and molecular weight of calcium hypochlorite?
The chemical formula is **Ca(OCl)₂**, and the molecular weight is **142.98 g/mol**.
What safety classification does calcium hypochlorite fall under?
It is classified with the **Signal Word: Danger** due to its corrosive and oxidizing properties.
How should calcium hypochlorite be stored?
Store in a **cool, dry place at ambient temperature**, away from incompatible substances like acids, organic materials, or flammables.
Does Molekula supply calcium hypochlorite in bulk quantities?
Yes, we offer calcium hypochlorite in bulk, with packaging options tailored to your specific requirements—please contact us for details.
What documentation is provided with a calcium hypochlorite order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a technical data sheet for compliance and handling guidance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.