Cleaning & Disinfection
Sodium Hypochlorite
Liquid chlorine-based disinfectant and bleaching agent for water treatment, sanitation and textiles.
Applications
- Disinfection & sanitation
- Drinking water treatment
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Water Treatment
Calcium Hypochlorite
Ca(OCl)2
Solid chlorine source for disinfection of drinking water, swimming pools, wastewater and surfaces.
- Chemical name
- Calcium hypochlorite
- CAS number
- 7778-54-3
- Also known as
- Cal hypo, Chlorine granules
Product overview
Calcium hypochlorite is a solid oxidizing agent that releases available chlorine when dissolved in water. Its solid form makes it convenient to store, transport and dose compared with liquid chlorine products.
It is widely used for disinfecting drinking water supplies, swimming pools and wastewater, and for sanitation and bleaching duties in industrial and commercial settings. As a strong oxidizer it must be stored and handled in line with its Safety Data Sheet.
Applications
Typical uses for this chemical. Suitability for a specific process, and grade requirements for food, pharmaceutical or potable-water use, should be confirmed with our team.
Technical information
| Chemical name | Calcium hypochlorite |
|---|---|
| Formula | Ca(OCl)2 |
| CAS number | 7778-54-3 |
| Molecular weight | 142.98 g/mol |
| HS code | 2828.10 |
| Transport classification | UN2880 (hydrated, 5.5–16% water) or UN1748 (dry), Class 5.1, PG II |
| Appearance | White to light grey (or pale yellow) granules, powder or tablets with a strong chlorine odour |
| Forms | Granules (approx. 14–50 mesh / 0.2–1.2 mm) · Tablets (e.g. 20 g, 100 g, 200 g) · Powder / granule-powder mix |
| Grades | 70% min available chlorine – sodium process · 65% min available chlorine – sodium process (water treatment) · 65% min available chlorine – calcium process (low moisture) · Drinking-water grade (AWWA B300 / EN 900, NSF 60 certified) |
| Packaging | 45 kg plastic drums (most common export pack) · 40 kg round drums; 45–50 kg octagonal / 50 kg square plastic drums lined with PVC bag · Smaller pails/drums 1–25 kg for pool trade · Sea freight in drums only (no bags, IBCs or bulk under the IMDG Code) |
Identifiers and classifications are standard reference data for the substance. Forms, grades and packaging reflect what is commonly traded internationally; availability for your order is confirmed in the quotation.
Typical specifications
Typical values for commonly traded grades of Calcium Hypochlorite, based on international standards and published manufacturer data.
Granular 70% – sodium process (typical export)
| Parameter | Typical value |
|---|---|
| Available chlorine | ≥ 70% |
| Moisture (H2O) | 5.5–10% |
| Water insolubles | ≤ 3.0% |
| Sodium chloride (NaCl) | 12–16% |
| Calcium chloride (CaCl2) | ≤ 2% |
| Calcium hydroxide (Ca(OH)2) | ≤ 2% |
| Calcium carbonate (CaCO3) | ≤ 3% |
| Particle size (14–50 mesh) | ≥ 90% |
| Bulk density | 1.0–1.1 g/mL |
| Annual available-chlorine loss | ≤ 10% |
Granular 65% – water treatment grade (AWWA B300 / EN 900 type)
| Parameter | Typical value |
|---|---|
| Available chlorine (at manufacture) | ≥ 65% (typical average 68%) |
| Water | 5.5–8.5% |
| Insolubles (in distilled water) | ≤ 3% |
| Iron (as Fe) | ≤ 0.05% |
| pH (1% solution) | 10.4–10.8 |
| Particle size | 210–1,190 µm (> 95%) |
| Solubility in water (20 °C) | 180–220 g/L |
65% – calcium process (low moisture, UN1748 type)
| Parameter | Typical value |
|---|---|
| Available chlorine | ≥ 65% |
| Moisture (H2O) | ≤ 3% |
| Water insolubles | ≤ 5.0% |
| Calcium chloride (CaCl2) | ≤ 9% |
| Particle size (14–50 mesh) | ≥ 87% |
| Bulk density | 1.0–1.1 g/mL |
| Annual available-chlorine loss | ≤ 8% |
Reference standards:AWWA B300 (Hypochlorites)EN 900 (Calcium hypochlorite for drinking water)GB/T 10666-2019 (China, calcium hypochlorite)NSF/ANSI/CAN 60IMDG Code / ADR (UN1748, UN2880, UN3485, UN3487)
Strong oxidiser. Sodium-process (≥70%) and calcium-process (≥65%) grades differ in moisture and transport classification.
Typical values are for guidance. The specification for your order depends on grade and origin and is confirmed in the quotation, Technical Data Sheet and Certificate of Analysis.
Packaging
- 45 kg plastic drums (most common export pack)
- 40 kg round drums; 45–50 kg octagonal / 50 kg square plastic drums lined with PVC bag
- Smaller pails/drums 1–25 kg for pool trade
- Sea freight in drums only (no bags, IBCs or bulk under the IMDG Code)
Packaging commonly used for export shipments of this product. Availability depends on grade and origin and is confirmed per order.
Packaging confirmed per order
Tell us your preferred packaging and handling requirements — we'll confirm available options for your grade, volume and destination.
Industries
Documentation
Request the documents you need to evaluate Calcium Hypochlorite. We send documents that match the grade being quoted.
- TDS
Technical Data Sheets
Product specifications and technical information.
- SDS
Safety Data Sheets
Safety and handling documentation where available.
- COA
Certificate of Analysis
Batch-specific documentation where applicable.
Request a Quote
Get a quotation for Calcium Hypochlorite
Share your quantity and destination — our export team will confirm grade, packaging and pricing.
Frequently asked questions
What grades of Calcium Hypochlorite are available?
Calcium Hypochlorite is commonly traded as 70% min available chlorine – sodium process; 65% min available chlorine – sodium process (water treatment); 65% min available chlorine – calcium process (low moisture); Drinking-water grade (AWWA B300 / EN 900, NSF 60 certified). Availability varies by origin and destination market — share the grade, purity or standard you require and we will confirm what can be supplied, with the current specification.
What is the HS code for Calcium Hypochlorite?
Calcium Hypochlorite is usually classified under HS 2828.10. National tariff codes add further digits and can differ by form and country, so confirm the full code with your customs broker before shipment.
Is Calcium Hypochlorite a dangerous good for shipping?
Typical transport classification: UN2880 (hydrated, 5.5–16% water) or UN1748 (dry), Class 5.1, PG II. Classification can vary with concentration and form, so the Safety Data Sheet for the grade shipped is the reference used when booking freight.
Which standards apply to Calcium Hypochlorite?
Commonly referenced standards include AWWA B300, EN 900, GB/T 10666-2019, NSF/ANSI/CAN 60. Tell us which standard your application or market requires and we will confirm a grade that meets it.
How is Calcium Hypochlorite packed for export?
Common export packaging for Calcium Hypochlorite includes 45 kg plastic drums (most common export pack); 40 kg round drums; 45–50 kg octagonal / 50 kg square plastic drums lined with PVC bag; Smaller pails/drums 1–25 kg for pool trade; Sea freight in drums only (no bags, IBCs or bulk under the IMDG Code). Tell us your preferred packaging and we will confirm what is available for your grade and volume.
Can I get the TDS, SDS or COA for Calcium Hypochlorite?
Yes — request them on this page. We send the documents that apply to the specific grade you are evaluating; a Certificate of Analysis is batch-specific and issued where applicable.
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